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Articoli di riviste sul tema "Protein-tyrosine kinase"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 3 marzo 2023

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1

Lawrence, David S., and Jinkui Niu. "Protein Kinase InhibitorsThe Tyrosine-Specific Protein Kinases." Pharmacology & Therapeutics 77, no. 2 (February 1998): 81–114. http://dx.doi.org/10.1016/s0163-7258(97)00052-1.

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2

Dailey, D., G. L. Schieven, M. Y. Lim, H. Marquardt, T. Gilmore, J. Thorner, and G. S. Martin. "Novel yeast protein kinase (YPK1 gene product) is a 40-kilodalton phosphotyrosyl protein associated with protein-tyrosine kinase activity." Molecular and Cellular Biology 10, no. 12 (December 1990): 6244–56. http://dx.doi.org/10.1128/mcb.10.12.6244-6256.1990.

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Abstract (sommario):
Extracts of bakers' yeast (Saccharomyces cerevisiae) contain protein-tyrosine kinase activity that can be detected with a synthetic Glu-Tyr copolymer as substrate (G. Schieven, J. Thorner, and G.S. Martin, Science 231:390-393, 1986). By using this assay in conjunction with ion-exchange and affinity chromatography, a soluble tyrosine kinase activity was purified over 8,000-fold from yeast extracts. The purified activity did not utilize typical substrates for mammalian protein-tyrosine kinases (enolase, casein, and histones). The level of tyrosine kinase activity at all steps of each preparation
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3

Dailey, D., G. L. Schieven, M. Y. Lim, H. Marquardt, T. Gilmore, J. Thorner, and G. S. Martin. "Novel yeast protein kinase (YPK1 gene product) is a 40-kilodalton phosphotyrosyl protein associated with protein-tyrosine kinase activity." Molecular and Cellular Biology 10, no. 12 (December 1990): 6244–56. http://dx.doi.org/10.1128/mcb.10.12.6244.

Testo completo
Abstract (sommario):
Extracts of bakers' yeast (Saccharomyces cerevisiae) contain protein-tyrosine kinase activity that can be detected with a synthetic Glu-Tyr copolymer as substrate (G. Schieven, J. Thorner, and G.S. Martin, Science 231:390-393, 1986). By using this assay in conjunction with ion-exchange and affinity chromatography, a soluble tyrosine kinase activity was purified over 8,000-fold from yeast extracts. The purified activity did not utilize typical substrates for mammalian protein-tyrosine kinases (enolase, casein, and histones). The level of tyrosine kinase activity at all steps of each preparation
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4

Hoekstra, M. F., N. Dhillon, G. Carmel, A. J. DeMaggio, R. A. Lindberg, T. Hunter, and J. Kuret. "Budding and fission yeast casein kinase I isoforms have dual-specificity protein kinase activity." Molecular Biology of the Cell 5, no. 8 (August 1994): 877–86. http://dx.doi.org/10.1091/mbc.5.8.877.

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Abstract (sommario):
We have examined the activity and substrate specificity of the Saccharomyces cerevisiae Hrr25p and the Schizosaccharomyces pombe Hhp1, Hhp2, and Cki1 protein kinase isoforms. These four gene products are isotypes of casein kinase I (CKI), and the sequence of these protein kinases predicts that they are protein serine/threonine kinases. However, each of these four protein kinases, when expressed in Escherichia coli in an active form, was recognized by anti-phosphotyrosine antibodies. Phosphoamino acid analysis of 32P-labeled proteins showed phosphorylation on serine, threonine, and tyrosine res
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5

Creeden, Justin F., Khaled Alganem, Ali S. Imami, F. Charles Brunicardi, Shi-He Liu, Rammohan Shukla, Tushar Tomar, Faris Naji, and Robert E. McCullumsmith. "Kinome Array Profiling of Patient-Derived Pancreatic Ductal Adenocarcinoma Identifies Differentially Active Protein Tyrosine Kinases." International Journal of Molecular Sciences 21, no. 22 (November 17, 2020): 8679. http://dx.doi.org/10.3390/ijms21228679.

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Abstract (sommario):
Pancreatic cancer remains one of the most difficult malignancies to treat. Minimal improvements in patient outcomes and persistently abysmal patient survival rates underscore the great need for new treatment strategies. Currently, there is intense interest in therapeutic strategies that target tyrosine protein kinases. Here, we employed kinome arrays and bioinformatic pipelines capable of identifying differentially active protein tyrosine kinases in different patient-derived pancreatic ductal adenocarcinoma (PDAC) cell lines and wild-type pancreatic tissue to investigate the unique kinomic net
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6

Boutin, Jean A. "Tyrosine protein kinase assays." Journal of Chromatography B: Biomedical Sciences and Applications 684, no. 1-2 (September 1996): 179–99. http://dx.doi.org/10.1016/0378-4347(95)00563-3.

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7

Laneuville, P. "Abl tyrosine protein kinase." Seminars in Immunology 7, no. 4 (August 1995): 255–66. http://dx.doi.org/10.1006/smim.1995.0030.

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8

Stern, D. F., P. Zheng, D. R. Beidler, and C. Zerillo. "Spk1, a new kinase from Saccharomyces cerevisiae, phosphorylates proteins on serine, threonine, and tyrosine." Molecular and Cellular Biology 11, no. 2 (February 1991): 987–1001. http://dx.doi.org/10.1128/mcb.11.2.987-1001.1991.

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Abstract (sommario):
A Saccharomyces cerevisiae lambda gt11 library was screened with antiphosphotyrosine antibodies in an attempt to identify a gene encoding a tyrosine kinase. A subclone derived from one positive phage was sequenced and found to contain an 821-amino-acid open reading frame that encodes a protein with homology to protein kinases. We tested the activity of the putative kinase by constructing a vector encoding a glutathione-S-transferase fusion protein containing most of the predicted polypeptide. The fusion protein phosphorylated endogenous substrates and enolase primarily on serine and threonine.
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9

Stern, D. F., P. Zheng, D. R. Beidler, and C. Zerillo. "Spk1, a new kinase from Saccharomyces cerevisiae, phosphorylates proteins on serine, threonine, and tyrosine." Molecular and Cellular Biology 11, no. 2 (February 1991): 987–1001. http://dx.doi.org/10.1128/mcb.11.2.987.

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Abstract (sommario):
A Saccharomyces cerevisiae lambda gt11 library was screened with antiphosphotyrosine antibodies in an attempt to identify a gene encoding a tyrosine kinase. A subclone derived from one positive phage was sequenced and found to contain an 821-amino-acid open reading frame that encodes a protein with homology to protein kinases. We tested the activity of the putative kinase by constructing a vector encoding a glutathione-S-transferase fusion protein containing most of the predicted polypeptide. The fusion protein phosphorylated endogenous substrates and enolase primarily on serine and threonine.
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10

Trojanek, Joanna B., Maria M. Klimecka, Anna Fraser, Grazyna Dobrowolska, and Grazyna Muszyńska. "Characterization of dual specificity protein kinase from maize seedlings." Acta Biochimica Polonica 51, no. 3 (September 30, 2004): 635–47. http://dx.doi.org/10.18388/abp.2004_3549.

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Abstract (sommario):
A protein kinase of 57 kDa, able to phosphorylate tyrosine in synthetic substrates pol(Glu4,Tyr1) and a fragment of Src tyrosine kinase, was isolated and partly purified from maize seedlings (Zea mays). The protein kinase was able to phosphorylate exogenous proteins: enolase, caseins, histones and myelin basic protein. Amino acid analysis of phosphorylated casein and enolase, as well as of phosphorylated endogenous proteins, showed that both Tyr and Ser residues were phosphorylated. Phosphotyrosine was also immunodetected in the 57 kDa protein fraction. In the protein fraction there are presen
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11

Mahajan, S., J. Fargnoli, A. L. Burkhardt, S. A. Kut, S. J. Saouaf, and J. B. Bolen. "Src family protein tyrosine kinases induce autoactivation of Bruton's tyrosine kinase." Molecular and Cellular Biology 15, no. 10 (October 1995): 5304–11. http://dx.doi.org/10.1128/mcb.15.10.5304.

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Abstract (sommario):
Bruton's tyrosine kinase (Btk) is tyrosine phosphorylated and enzymatically activated following ligation of the B-cell antigen receptor. These events are temporally regulated, and Btk activation follows that of various members of the Src family of protein tyrosine kinases, thus raising the possibility that Src kinases participate in the Btk activation process. We have evaluated the mechanism underlying Btk enzyme activation and have explored the potential regulatory relationship between Btk and Src protein kinases. We demonstrate in COS transient-expression assays that Btk can be activated thr
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12

Lindberg, R. A., and T. Hunter. "cDNA cloning and characterization of eck, an epithelial cell receptor protein-tyrosine kinase in the eph/elk family of protein kinases." Molecular and Cellular Biology 10, no. 12 (December 1990): 6316–24. http://dx.doi.org/10.1128/mcb.10.12.6316-6324.1990.

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A human epithelial (HeLa) cDNA library was screened with degenerate oligonucleotides designed to hybridize to highly conserved regions of protein-tyrosine kinases. One cDNA from this screen was shown to contain a putative protein-tyrosine kinase catalytic domain and subsequently used to isolate another cDNA from a human keratinocyte library that encompasses the entire coding region of a 976-amino-acid polypeptide. The predicted protein has an external domain of 534 amino acids with a presumptive N-terminal signal peptide, a transmembrane domain, and a cytoplasmic domain of 418 amino acids that
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13

Lindberg, R. A., and T. Hunter. "cDNA cloning and characterization of eck, an epithelial cell receptor protein-tyrosine kinase in the eph/elk family of protein kinases." Molecular and Cellular Biology 10, no. 12 (December 1990): 6316–24. http://dx.doi.org/10.1128/mcb.10.12.6316.

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Abstract (sommario):
A human epithelial (HeLa) cDNA library was screened with degenerate oligonucleotides designed to hybridize to highly conserved regions of protein-tyrosine kinases. One cDNA from this screen was shown to contain a putative protein-tyrosine kinase catalytic domain and subsequently used to isolate another cDNA from a human keratinocyte library that encompasses the entire coding region of a 976-amino-acid polypeptide. The predicted protein has an external domain of 534 amino acids with a presumptive N-terminal signal peptide, a transmembrane domain, and a cytoplasmic domain of 418 amino acids that
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14

Tan, J. L., and J. A. Spudich. "Developmentally regulated protein-tyrosine kinase genes in Dictyostelium discoideum." Molecular and Cellular Biology 10, no. 7 (July 1990): 3578–83. http://dx.doi.org/10.1128/mcb.10.7.3578-3583.1990.

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Abstract (sommario):
Dictyostelium discoideum, an organism that undergoes development and that is amenable to biochemical and molecular genetic approaches, is an attractive model organism with which to study the role of tyrosine phosphorylation in cell-cell communication. We report the presence of protein-tyrosine kinase genes in D. discoideum. Screening of a Dictyostelium cDNA expression library with an anti-phosphotyrosine antibody identifies fusion proteins that exhibit protein-tyrosine kinase activity. Two distinct cDNAs were identified and isolated. Though highly homologous to protein kinases in general, thes
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15

Tan, J. L., and J. A. Spudich. "Developmentally regulated protein-tyrosine kinase genes in Dictyostelium discoideum." Molecular and Cellular Biology 10, no. 7 (July 1990): 3578–83. http://dx.doi.org/10.1128/mcb.10.7.3578.

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Abstract (sommario):
Dictyostelium discoideum, an organism that undergoes development and that is amenable to biochemical and molecular genetic approaches, is an attractive model organism with which to study the role of tyrosine phosphorylation in cell-cell communication. We report the presence of protein-tyrosine kinase genes in D. discoideum. Screening of a Dictyostelium cDNA expression library with an anti-phosphotyrosine antibody identifies fusion proteins that exhibit protein-tyrosine kinase activity. Two distinct cDNAs were identified and isolated. Though highly homologous to protein kinases in general, thes
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16

BISOTTO, Sandra, and Elizabeth D. FIXMAN. "Src-family tyrosine kinases, phosphoinositide 3-kinase and Gab1 regulate extracellular signal-regulated kinase 1 activation induced by the type A endothelin-1 G-protein-coupled receptor." Biochemical Journal 360, no. 1 (November 8, 2001): 77–85. http://dx.doi.org/10.1042/bj3600077.

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Abstract (sommario):
The multisubstrate docking protein, growth-factor-receptor-bound protein 2-associated binder 1 (Gab1), which is phosphorylated on tyrosine residues following activation of receptor tyrosine kinases and cytokine receptors, regulates cell proliferation, survival and epithelial morphogenesis. Gab1 is also tyrosine phosphorylated following activation of G-protein-coupled receptors (GPCRs) where its function is poorly understood. To elucidate the role of Gab1 in GPCR signalling, we investigated the mechanism by which the type A endothelin-1 (ET-1) GPCR induced tyrosine phosphorylation of Gab1. Tyro
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17

Amatya, Neha, David Yin-wei Lin, and Amy H. Andreotti. "Dynamic regulatory features of the protein tyrosine kinases." Biochemical Society Transactions 47, no. 4 (August 8, 2019): 1101–16. http://dx.doi.org/10.1042/bst20180590.

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Abstract (sommario):
Abstract The SRC, Abelson murine leukemia viral oncogene homolog 1, TEC and C-terminal SRC Kinase families of non-receptor tyrosine kinases (collectively the Src module kinases) mediate an array of cellular signaling processes and are therapeutic targets in many disease states. Crystal structures of Src modules kinases provide valuable insights into the regulatory mechanisms that control activation and generate a framework from which drug discovery can advance. The conformational ensembles visited by these multidomain kinases in solution are also key features of the regulatory machinery contro
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18

Kobayashi, Tomoko, Shun-Ichi Nakamura, and Hirohei Yamamura. "Cytosolic Protein-Tyrosine Kinase Activities in Various Rat Tissues." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 26, no. 2 (March 1989): 164–68. http://dx.doi.org/10.1177/000456328902600213.

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Abstract (sommario):
Suitable assay conditions for the detection of cytosolic protein-tyrosine kinase activities in crude extracts of various rat tissues have been determined. Cytosolic protein-tyrosine kinases showed common characteristics including substrate specificity and divalent cation requirement. Using (Val5) angiotensin II and Mn2+ rather than a src-related synthetic peptide, E11G1, and Mg2+, we obtained higher activities of cytosolic protein-tyrosine kinases. Among various rat tissues tested, spleen, bone marrow, thymus, small intestine, appendix and lung, in decreasing order of total activity, contained
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19

Rivard, N., G. Rydzewska, J. S. Lods, and J. Morisset. "Novel model of integration of signaling pathways in rat pancreatic acinar cells." American Journal of Physiology-Gastrointestinal and Liver Physiology 269, no. 3 (September 1, 1995): G352—G362. http://dx.doi.org/10.1152/ajpgi.1995.269.3.g352.

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Cholecystokinin (CCK) is the major pancreatic secretagogue and acinar cell mitogen. This study was performed to determine by which effector systems CCK regulates tyrosine kinases, phosphatidylinositol (PtdIns) 3-kinase, and phospholipase D (PLD) activities. Pancreatic acini loaded with [3H]myristic acid or [3H]inositol were used to assay PLD and PtdIns 3-kinase. G protein activation with NaF increased particulate and crude cytosolic tyrosine kinase and PLD activities. PLD activation was pertussis toxin sensitive. Inhibition of phospholipase C (PLC) slightly reduced caerulein-stimulated particu
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20

Lhoták, V., P. Greer, K. Letwin, and T. Pawson. "Characterization of elk, a brain-specific receptor tyrosine kinase." Molecular and Cellular Biology 11, no. 5 (May 1991): 2496–502. http://dx.doi.org/10.1128/mcb.11.5.2496-2502.1991.

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Abstract (sommario):
The elk gene encodes a novel receptorlike protein-tyrosine kinase, which belongs to the eph subfamily. We have previously identified a partial cDNA encompassing the elk catalytic domain (K. Letwin, S.-P. Yee, and T. Pawson, Oncogene 3:621-678, 1988). Using this cDNA as a probe, we have isolated cDNAs spanning the entire rat elk coding sequence. The predicted Elk protein contains all the hallmarks of a receptor tyrosine kinase, including an N-terminal signal sequence, a cysteine-rich extracellular domain, a membrane-spanning segment, a cytoplasmic tyrosine kinase domain, and a C-terminal tail.
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21

Lhoták, V., P. Greer, K. Letwin, and T. Pawson. "Characterization of elk, a brain-specific receptor tyrosine kinase." Molecular and Cellular Biology 11, no. 5 (May 1991): 2496–502. http://dx.doi.org/10.1128/mcb.11.5.2496.

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Abstract (sommario):
The elk gene encodes a novel receptorlike protein-tyrosine kinase, which belongs to the eph subfamily. We have previously identified a partial cDNA encompassing the elk catalytic domain (K. Letwin, S.-P. Yee, and T. Pawson, Oncogene 3:621-678, 1988). Using this cDNA as a probe, we have isolated cDNAs spanning the entire rat elk coding sequence. The predicted Elk protein contains all the hallmarks of a receptor tyrosine kinase, including an N-terminal signal sequence, a cysteine-rich extracellular domain, a membrane-spanning segment, a cytoplasmic tyrosine kinase domain, and a C-terminal tail.
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22

Gold, M. R., J. S. Sanghera, J. Stewart, and S. L. Pelech. "Selective activation of p42 mitogen-activated protein (MAP) kinase in murine B lymphoma cell lines by membrane immunoglobulin cross-linking. Evidence for protein kinase C-independent and -dependent mechanisms of activation." Biochemical Journal 287, no. 1 (October 1, 1992): 269–76. http://dx.doi.org/10.1042/bj2870269.

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Abstract (sommario):
Cross-linking of membrane immunoglobulin (mIg), the B lymphocyte antigen receptor, with anti-receptor antibodies stimulates tyrosine phosphorylation of a number of proteins, including one of 42 kDa. Proteins with a similar molecular mass are tyrosine-phosphorylated in response to receptor stimulation in other cell types and have been identified as serine/threonine kinases, termed mitogen-activated protein (MAP) kinases or extracellular signal-regulated kinases (ERKs). The MAP kinases constitute a family of related kinases, at least three of which have molecular masses of 40-45 kDa. In this pap
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23

&NA;. "Bevacizumab/protein tyrosine kinase inhibitors." Reactions Weekly &NA;, no. 1389 (February 2012): 13–14. http://dx.doi.org/10.2165/00128415-201213890-00038.

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24

Bose, Ron, Marc A. Holbert, Kerry A. Pickin, and Philip A. Cole. "Protein tyrosine kinase–substrate interactions." Current Opinion in Structural Biology 16, no. 6 (December 2006): 668–75. http://dx.doi.org/10.1016/j.sbi.2006.10.012.

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25

LANG, Mark L., Yih-Wen CHEN, Li SHEN, Hong GAO, Gillian A. LANG, Terri K. WADE та William F. WADE. "IgA Fc receptor (FcαR) cross-linking recruits tyrosine kinases, phosphoinositide kinases and serine/threonine kinases to glycolipid rafts". Biochemical Journal 364, № 2 (1 червня 2002): 517–25. http://dx.doi.org/10.1042/bj20011696.

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Abstract (sommario):
The human IgA Fc receptor (FcαR, CD89) triggers several important physiological functions, including phagocytosis, NADPH oxidase activation and antigen presentation. Efforts are underway to delineate FcαR signal-transduction pathways that control these functions. In a previous study, we demonstrated that cross-linking of FcαR increased its partitioning into membrane glycolipid rafts and was accompanied by γ-chain-dependent recruitment and phosphorylation of the tyrosine kinases Lck/Yes-related novel protein tyrosine kinase (Lyn) and Bruton's tyrosine kinase (Btk). Here we have performed a more
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26

Hurley, T. R., R. Hyman, and B. M. Sefton. "Differential effects of expression of the CD45 tyrosine protein phosphatase on the tyrosine phosphorylation of the lck, fyn, and c-src tyrosine protein kinases." Molecular and Cellular Biology 13, no. 3 (March 1993): 1651–56. http://dx.doi.org/10.1128/mcb.13.3.1651-1656.1993.

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Abstract (sommario):
Expression of the CD45 tyrosine protein phosphatase is required for the response of functional lymphocytes to stimulation through the antigen receptor. One or more of its substrates may therefore be essential for signal transduction during lymphocyte activation. We have studied the phosphorylation of the closely related lck, fyn, and c-src tyrosine protein kinases in leukemic murine T-cell lines that have lost the expression of CD45. The phosphorylation of the lck kinase at an inhibitory site of tyrosine phosphorylation, Tyr-505, was increased by two-, six-, and eightfold in three different ce
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27

Hurley, T. R., R. Hyman, and B. M. Sefton. "Differential effects of expression of the CD45 tyrosine protein phosphatase on the tyrosine phosphorylation of the lck, fyn, and c-src tyrosine protein kinases." Molecular and Cellular Biology 13, no. 3 (March 1993): 1651–56. http://dx.doi.org/10.1128/mcb.13.3.1651.

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Abstract (sommario):
Expression of the CD45 tyrosine protein phosphatase is required for the response of functional lymphocytes to stimulation through the antigen receptor. One or more of its substrates may therefore be essential for signal transduction during lymphocyte activation. We have studied the phosphorylation of the closely related lck, fyn, and c-src tyrosine protein kinases in leukemic murine T-cell lines that have lost the expression of CD45. The phosphorylation of the lck kinase at an inhibitory site of tyrosine phosphorylation, Tyr-505, was increased by two-, six-, and eightfold in three different ce
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28

MULLAPUDI, Srinivas R. S., Francis ALI-OSMAN, Jiang SHOU, and Kalkunte S. SRIVENUGOPAL. "DNA repair protein O6-alkylguanine-DNA alkyltransferase is phosphorylated by two distinct and novel protein kinases in human brain tumour cells." Biochemical Journal 351, no. 2 (October 10, 2000): 393–402. http://dx.doi.org/10.1042/bj3510393.

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Abstract (sommario):
We showed recently that human O6-alkylguanine-DNA alkyltransferase (AGT), an important target for improving cancer chemotherapy, is a phosphoprotein and that phosphorylation inhibits its activity [Srivenugopal, Mullapudi, Shou, Hazra and Ali-Osman (2000) Cancer Res. 60, 282–287]. In the present study we characterized the cellular kinases that phosphorylate AGT in the human medulloblastoma cell line HBT228. Crude cell extracts used Mg2+ more efficiently than Mn2+ for phosphorylating human recombinant AGT (rAGT) protein. Both [γ-32P]ATP and [γ-32P]GTP served as phosphate donors, with the former
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29

Bach, Horacio, Dennis Wong, and Yossef Av-Gay. "Mycobacterium tuberculosis PtkA is a novel protein tyrosine kinase whose substrate is PtpA." Biochemical Journal 420, no. 2 (May 13, 2009): 155–62. http://dx.doi.org/10.1042/bj20090478.

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Abstract (sommario):
In Mycobacterium tuberculosis, signal transduction is mediated by 11 serine/threonine kinases, but no tyrosine kinases have been identified thus far. The protein encoded by the ORF (open reading frame) Rv2232 has been annotated as a member of the HAD (haloacid dehydrogenase-like hydrolase) superfamily, which includes phosphatases, phosphomanno- and phosphogluco-mutases, and haloacid dehydrogenases. In the present paper, we report, on the basis of biochemical and mutational analyses, that the Rv2232-encoded protein, named protein tyrosine kinase A (PtkA) is a bona fide protein tyrosine kinase.
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30

Krieg, Thomas, Qining Qin, Elizabeth C. McIntosh, Michael V. Cohen, and James M. Downey. "ACh and adenosine activate PI3-kinase in rabbit hearts through transactivation of receptor tyrosine kinases." American Journal of Physiology-Heart and Circulatory Physiology 283, no. 6 (December 1, 2002): H2322—H2330. http://dx.doi.org/10.1152/ajpheart.00474.2002.

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Abstract (sommario):
Adenosine and acetylcholine (ACh) trigger preconditioning through different signaling pathways. We tested whether either could activate myocardial phosphatidylinositol 3-kinase (PI3-kinase), a putative signaling protein in ischemic preconditioning. We used phosphorylation of Akt, a downstream target of PI3-kinase, as a reporter. Exposure of isolated rabbit hearts to ACh increased Akt phosphorylation 2.62 ± 0.33 fold ( P = 0.001), whereas adenosine caused a significantly smaller increase (1.52 ± 0.08 fold). ACh-induced activation of Akt was abolished by the tyrosine kinase blocker genistein ind
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31

Maher, P. A. "Tissue-dependent regulation of protein tyrosine kinase activity during embryonic development." Journal of Cell Biology 112, no. 5 (March 1, 1991): 955–63. http://dx.doi.org/10.1083/jcb.112.5.955.

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Abstract (sommario):
Protein tyrosine kinase activity was assayed in a variety of chicken tissues during embryonic development and in the adult. In some tissues protein tyrosine kinase activity decreased during embryonic development; however, in other tissues it remained high throughout development, it contrast to the level of protein tyrosine phosphorylation, which decreased during development. The highest levels of tyrosine kinase activity were detected in 17-d embryonic brain although only low levels of protein tyrosine phosphorylation were observed in this tissue. Several alternatives were examined in an effor
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32

Sanguedolce, M. V., C. Capo, M. Bouhamdan, P. Bongrand, C. K. Huang, and J. L. Mege. "Zymosan-induced tyrosine phosphorylations in human monocytes. Role of protein kinase C." Journal of Immunology 151, no. 1 (July 1, 1993): 405–14. http://dx.doi.org/10.4049/jimmunol.151.1.405.

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Abstract (sommario):
Abstract Protein tyrosine phosphorylations are involved in the proliferation and secretory responses of immune cells, but their role in phagocytes is poorly understood. The ability of unopsonized zymosan to induce protein tyrosine phosphorylations was investigated in human monocytes. The addition of zymosan to monocytes resulted in an increase in tyrosine phosphorylation of several endogenous proteins including 28-, 33-, 38-, 42-, 47-, 55- to 60-, 62-, 68-, 90-, 105-, 116-, and 120-kDa proteins; 55- to 60-kDa proteins were the predominant phosphoproteins. Moreover, we studied the effects of ty
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33

Gutkind, J. S., P. M. Lacal, and K. C. Robbins. "Thrombin-dependent association of phosphatidylinositol-3 kinase with p60c-src and p59fyn in human platelets." Molecular and Cellular Biology 10, no. 7 (July 1990): 3806–9. http://dx.doi.org/10.1128/mcb.10.7.3806-3809.1990.

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Abstract (sommario):
Recent studies have shown that ligand-activated growth factor receptors as well as transforming versions of nonreceptor protein-tyrosine kinases physically associate with phosphatidylinositol-3 kinase (PI-3 kinase). Reasoning that PI-3 kinase might also play a role in the normal functions of nonreceptor kinases, we sought to determine whether association with PI-3 kinase might serve as a measure of nonreceptor protein-tyrosine kinase activation under physiological conditions. We found that p60c-src as well as p59fyn, the product of another member of the src family of proto-oncogenes, physicall
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34

Gutkind, J. S., P. M. Lacal, and K. C. Robbins. "Thrombin-dependent association of phosphatidylinositol-3 kinase with p60c-src and p59fyn in human platelets." Molecular and Cellular Biology 10, no. 7 (July 1990): 3806–9. http://dx.doi.org/10.1128/mcb.10.7.3806.

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Abstract (sommario):
Recent studies have shown that ligand-activated growth factor receptors as well as transforming versions of nonreceptor protein-tyrosine kinases physically associate with phosphatidylinositol-3 kinase (PI-3 kinase). Reasoning that PI-3 kinase might also play a role in the normal functions of nonreceptor kinases, we sought to determine whether association with PI-3 kinase might serve as a measure of nonreceptor protein-tyrosine kinase activation under physiological conditions. We found that p60c-src as well as p59fyn, the product of another member of the src family of proto-oncogenes, physicall
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35

K. Bhanumathy, Kalpana, Amrutha Balagopal, Frederick S. Vizeacoumar, Franco J. Vizeacoumar, Andrew Freywald, and Vincenzo Giambra. "Protein Tyrosine Kinases: Their Roles and Their Targeting in Leukemia." Cancers 13, no. 2 (January 7, 2021): 184. http://dx.doi.org/10.3390/cancers13020184.

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Abstract (sommario):
Protein kinases constitute a large group of enzymes catalysing protein phosphorylation and controlling multiple signalling events. The human protein kinase superfamily consists of 518 members and represents a complicated system with intricate internal and external interactions. Protein kinases are classified into two main families based on the ability to phosphorylate either tyrosine or serine and threonine residues. Among the 90 tyrosine kinase genes, 58 are receptor types classified into 20 groups and 32 are of the nonreceptor types distributed into 10 groups. Tyrosine kinases execute their
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36

K. Bhanumathy, Kalpana, Amrutha Balagopal, Frederick S. Vizeacoumar, Franco J. Vizeacoumar, Andrew Freywald, and Vincenzo Giambra. "Protein Tyrosine Kinases: Their Roles and Their Targeting in Leukemia." Cancers 13, no. 2 (January 7, 2021): 184. http://dx.doi.org/10.3390/cancers13020184.

Testo completo
Abstract (sommario):
Protein kinases constitute a large group of enzymes catalysing protein phosphorylation and controlling multiple signalling events. The human protein kinase superfamily consists of 518 members and represents a complicated system with intricate internal and external interactions. Protein kinases are classified into two main families based on the ability to phosphorylate either tyrosine or serine and threonine residues. Among the 90 tyrosine kinase genes, 58 are receptor types classified into 20 groups and 32 are of the nonreceptor types distributed into 10 groups. Tyrosine kinases execute their
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37

Jin, N., R. A. Siddiqui, D. English, and R. A. Rhoades. "Communication between tyrosine kinase pathway and myosin light chain kinase pathway in smooth muscle." American Journal of Physiology-Heart and Circulatory Physiology 271, no. 4 (October 1, 1996): H1348—H1355. http://dx.doi.org/10.1152/ajpheart.1996.271.4.h1348.

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Abstract (sommario):
Two separate signal transduction pathways exist in vascular smooth muscle: one for cell growth, proliferation, and differentiation and the other for contraction. Although activation of protein tyrosine kinases is intimately involved in the signaling pathway that induces cell growth, proliferation, and differentiation, activation of myosin light chain kinase (MLCK) is an important step in the pathway leading to smooth muscle contraction. Indirect evidence suggests that “cross talk” exists between these two signaling pathways, but the common intermediates are not well defined. The purpose of thi
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38

Wen, X., H. H. Lin, and D. K. Ann. "Salivary Cellular Signaling and Gene Regulation." Advances in Dental Research 14, no. 1 (December 2000): 76–80. http://dx.doi.org/10.1177/08959374000140011201.

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Abstract (sommario):
Protein tyrosine kinase and protein serine kinase activation has been implicated in the regulation of salivary cell proliferation and differentiation. Aberrant expression and alterations of certain tyrosine or serine kinases, such as Raf or erbB2, are known to trigger salivary tumor development (Li et al., 1997; Cho et al., 1999). It has been estimated that there are about 1000 to 2000 protein kinases in the mammalian genome, with 100 to 200 of them ( i.e., 10%) being tyrosine kinase (Hanks and Hunter, 1995). At present, there are approximately 85 different tyrosine kinases identified in the G
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39

Sharfe, N., HK Dadi, and CM Roifman. "JAK3 protein tyrosine kinase mediates interleukin-7-induced activation of phosphatidylinositol-3' kinase." Blood 86, no. 6 (September 15, 1995): 2077–85. http://dx.doi.org/10.1182/blood.v86.6.2077.bloodjournal8662077.

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The interleukin-7 (IL-7) receptor is expressed throughout T-cell differentiation and, although lacking a tyrosine kinase domain, mediates tyrosine phosphorylation in T cells. We have identified IL-7- induced activation of three cyoplasmic tyrosine kinases in T cells, Jak1, Jak3, and the src-like kinase p56lck. Many members of the cytokine receptor superfamily activate the Jak protein tyrosine kinase family, with resultant phosphorylation of the Stat transcriptional activator factors. We describe here a novel function of the Jak kinases, because Jak kinase activity is not only required for Stat
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40

Rane, M. J., S. L. Carrithers, J. M. Arthur, J. B. Klein, and K. R. McLeish. "Formyl peptide receptors are coupled to multiple mitogen-activated protein kinase cascades by distinct signal transduction pathways: role in activation of reduced nicotinamide adenine dinucleotide oxidase." Journal of Immunology 159, no. 10 (November 15, 1997): 5070–78. http://dx.doi.org/10.4049/jimmunol.159.10.5070.

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Abstract (sommario):
Abstract Formyl peptide receptor activation of three mitogen-activated protein kinase (MAPK) cascades, extracellular signal-regulated kinases (ERKs), N-terminal kinases (JNKs), and p38 MAPK was examined in differentiated HL-60 granulocytes. FMLP stimulated a concentration- and time-dependent increase in ERK, JNK, and p38 MAPK activities, all of which were dependent on a pertussis toxin-sensitive G protein. Pharmacologic inhibitors were used to examine the roles of tyrosine kinases, phosphatidylinositol 3-kinase, protein kinase C, and phospholipase C. FMLP-stimulated ERK activity was dependent
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41

Gould, K. L., J. R. Woodgett, C. M. Isacke, and T. Hunter. "The protein-tyrosine kinase substrate p36 is also a substrate for protein kinase C in vitro and in vivo." Molecular and Cellular Biology 6, no. 7 (July 1986): 2738–44. http://dx.doi.org/10.1128/mcb.6.7.2738-2744.1986.

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Abstract (sommario):
p36, a major in vivo substrate of protein-tyrosine kinases, is shown to be phosphorylated at serine 25, a site very close to the major site of tyrosine phosphorylation by pp60v-src, tyrosine 23 (J. R. Glenney, Jr., and B. F. Tack, Proc. Natl. Acad. Sci. USA 82:7884-7888, 1985). We present evidence suggesting that protein kinase C mediates phosphorylation of serine 25.
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42

Gould, K. L., J. R. Woodgett, C. M. Isacke, and T. Hunter. "The protein-tyrosine kinase substrate p36 is also a substrate for protein kinase C in vitro and in vivo." Molecular and Cellular Biology 6, no. 7 (July 1986): 2738–44. http://dx.doi.org/10.1128/mcb.6.7.2738.

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Abstract (sommario):
p36, a major in vivo substrate of protein-tyrosine kinases, is shown to be phosphorylated at serine 25, a site very close to the major site of tyrosine phosphorylation by pp60v-src, tyrosine 23 (J. R. Glenney, Jr., and B. F. Tack, Proc. Natl. Acad. Sci. USA 82:7884-7888, 1985). We present evidence suggesting that protein kinase C mediates phosphorylation of serine 25.
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43

Beeler, J. F., W. J. LaRochelle, M. Chedid, S. R. Tronick, and S. A. Aaronson. "Prokaryotic expression cloning of a novel human tyrosine kinase." Molecular and Cellular Biology 14, no. 2 (February 1994): 982–88. http://dx.doi.org/10.1128/mcb.14.2.982-988.1994.

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Abstract (sommario):
Screening of a human embryonic lung fibroblast cDNA expression library with antiphosphotyrosine antibodies led to isolation of a novel protein kinase. A clone, designated A6, contained a 3-kb cDNA insert with a predicted open reading frame of 350 amino acids. DNA sequence analysis failed to reveal any detectable similarity with previously known genes, and the predicted A6 protein lacked any of the motifs commonly conserved in the catalytic domains of protein kinases. However, the bacterially expressed beta-galactosidase-A6 fusion protein demonstrated both tyrosine and serine phosphorylation in
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44

Beeler, J. F., W. J. LaRochelle, M. Chedid, S. R. Tronick, and S. A. Aaronson. "Prokaryotic expression cloning of a novel human tyrosine kinase." Molecular and Cellular Biology 14, no. 2 (February 1994): 982–88. http://dx.doi.org/10.1128/mcb.14.2.982.

Testo completo
Abstract (sommario):
Screening of a human embryonic lung fibroblast cDNA expression library with antiphosphotyrosine antibodies led to isolation of a novel protein kinase. A clone, designated A6, contained a 3-kb cDNA insert with a predicted open reading frame of 350 amino acids. DNA sequence analysis failed to reveal any detectable similarity with previously known genes, and the predicted A6 protein lacked any of the motifs commonly conserved in the catalytic domains of protein kinases. However, the bacterially expressed beta-galactosidase-A6 fusion protein demonstrated both tyrosine and serine phosphorylation in
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45

BRADFORD, Michelle D., and Stephen P. SOLTOFF. "P2X7 receptors activate protein kinase D and p42/p44 mitogen-activated protein kinase (MAPK) downstream of protein kinase C." Biochemical Journal 366, no. 3 (September 15, 2002): 745–55. http://dx.doi.org/10.1042/bj20020358.

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Abstract (sommario):
Protein kinase D (PKD), also called protein kinase Cμ (PKCμ), is a serine/threonine kinase that has unique enzymic and structural properties distinct from members of the PKC family of proteins. In freshly isolated rat parotid acinar salivary cells, extracellular ATP rapidly increased the activity and phosphorylation of PKD. The stimulation by ATP required high concentrations, was mimicked by the P2X7 receptor ligand BzATP [2′- and 3′-O-(4-benzoylbenzoyl)ATP], and was blocked by Mg2+ and 4,4′-di-isothiocyano-2,2′-stilbene disulphonate (DIDS), suggesting that activation of PKD was mediated by P2
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46

Wurgler-Murphy, S. M., T. Maeda, E. A. Witten, and H. Saito. "Regulation of the Saccharomyces cerevisiae HOG1 mitogen-activated protein kinase by the PTP2 and PTP3 protein tyrosine phosphatases." Molecular and Cellular Biology 17, no. 3 (March 1997): 1289–97. http://dx.doi.org/10.1128/mcb.17.3.1289.

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Abstract (sommario):
In response to increases in extracellular osmolarity, Saccharomyces cerevisiae activates the HOG1 mitogen-activated protein kinase (MAPK) cascade, which is composed of a pair of redundant MAPK kinase kinases, namely, Ssk2p and Ssk22p, the MAPK kinase Pbs2p, and the MAPK Hog1p. Hog1p is activated by Pbs2p through phosphorylation of specific threonine and tyrosine residues. Activated Hog1p is essential for survival of yeast cells at high osmolarity. However, expression of constitutively active mutant kinases, such as those encoded by SSK2deltaN and PBS2(DD), is toxic and results in a lethal leve
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47

Wang, Bing, Serge Lemay, Schickwann Tsai, and André Veillette. "SH2 Domain-Mediated Interaction of Inhibitory Protein Tyrosine Kinase Csk with Protein Tyrosine Phosphatase-HSCF." Molecular and Cellular Biology 21, no. 4 (February 15, 2001): 1077–88. http://dx.doi.org/10.1128/mcb.21.4.1077-1088.2001.

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Abstract (sommario):
ABSTRACT The protein tyrosine kinase (PTK) Csk is a potent negative regulator of several signal transduction processes, as a consequence of its exquisite ability to inactivate Src-related PTKs. This function requires not only the kinase domain of Csk, but also its Src homology 3 (SH3) and SH2 regions. We showed previously that the Csk SH3 domain mediates highly specific associations with two members of the PEP family of nonreceptor protein tyrosine phosphatases (PTPs), PEP and PTP-PEST. In comparison, the Csk SH2 domain interacts with several tyrosine phosphorylated molecules, presumed to allo
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48

Ferrell, J. E., and G. S. Martin. "Identification of a 42-kilodalton phosphotyrosyl protein as a serine(threonine) protein kinase by renaturation." Molecular and Cellular Biology 10, no. 6 (June 1990): 3020–26. http://dx.doi.org/10.1128/mcb.10.6.3020-3026.1990.

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Abstract (sommario):
We have surveyed fibroblast lysates for protein kinases that might be involved in mitogenesis. The assay we have used exploits the ability of blotted, sodium dodecyl sulfate-denatured proteins to regain enzymatic activity after guanidine treatment. About 20 electrophoretically distinct protein kinases could be detected by this method in lysates from NIH 3T3 cells. One of the kinases, a 42-kilodalton serine(threonine) kinase (PK42), was found to possess two- to fourfold-higher in vitro activity when isolated from serum-stimulated cells than when isolated from serum-starved cells. This kinase co
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49

Ferrell, J. E., and G. S. Martin. "Identification of a 42-kilodalton phosphotyrosyl protein as a serine(threonine) protein kinase by renaturation." Molecular and Cellular Biology 10, no. 6 (June 1990): 3020–26. http://dx.doi.org/10.1128/mcb.10.6.3020.

Testo completo
Abstract (sommario):
We have surveyed fibroblast lysates for protein kinases that might be involved in mitogenesis. The assay we have used exploits the ability of blotted, sodium dodecyl sulfate-denatured proteins to regain enzymatic activity after guanidine treatment. About 20 electrophoretically distinct protein kinases could be detected by this method in lysates from NIH 3T3 cells. One of the kinases, a 42-kilodalton serine(threonine) kinase (PK42), was found to possess two- to fourfold-higher in vitro activity when isolated from serum-stimulated cells than when isolated from serum-starved cells. This kinase co
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50

Chen, F., M. Torres, and R. F. Duncan. "Activation of mitogen-activated protein kinase by heat shock treatment in Drosophila." Biochemical Journal 312, no. 2 (December 1, 1995): 341–49. http://dx.doi.org/10.1042/bj3120341.

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Abstract (sommario):
Heat shock treatment of Drosophila melanogaster tissue culture cells causes increased tyrosine phosphorylation of several 44 kDa proteins, which are identified as Drosophila mitogen-activated protein (MAP) kinases. Tyrosine phosphorylation occurs within 5 min, and is maintained at high levels during heat shock. It decreases to basal levels during recovery, concurrent with the repression of heat shock transcription and heat-shock-protein synthesis. The increased MAP kinase tyrosine phosphorylation is parallelled by increased MAP kinase activity. At least two MAP kinases, DmERK-A and DmERK-B, ar
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