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Dissertations / Theses on the topic 'Tryptophan residue'

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Published: 4 June 2021

Last updated: 3 February 2022

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1

McAllister, Kelly Ann. "Identification of a tryptophan residue in the active site of catalytic domain B of xylanase C from Fibrobacter succinogenes S85." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ27522.pdf.

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2

Jaquith, James B. "Synthesis of Angiotensin-converting Enzyme, ACE, inhibitors using dynamic kinetic resolution, Synthesis of the highly methylated tryptophan residue of hemiasterlin using glycidic ester ring opening reactions ; Synthesis of benz(o)indenes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0019/NQ46525.pdf.

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3

Gross, Martin. "The tryptophan residues of mitochondrial creatine kinase : roles in enzyme structure and function /." [S.l.] : [s.n.], 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10719.

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4

Herron, Lissa. "Determining Which Tryptophan Residues Give Rise to Fluorescence Properties in the Metallo-Beta-Lactamase L1." Miami University Honors Theses / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=muhonors1110916836.

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5

Röjdeby, Elin. "Thermostability investigation of Fatty Acid Binding Protein from Cataglyphis fortis by fluorescence spectroscopy using genetically introduced tryptophan residues." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-74238.

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The desert ant Cataglyphis fortis is one of the hyperthermophilic species of Cataglyphis. It lives in the Sahara desert and forages during the hottest hours of the day when it can get up to 70˚C in the sand. The body temperature of the ant during the foraging runs can reach a maximum of 55˚C. Since C.fortis is one of few eukaryotic hyperthermophilic species, its proteins probably have a high thermostability. Investigating the thermostability can give valuable information about the principles of protein folding and stability in hyperthermophiles.Fatty acid binding proteins (FABPs) have an impor

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6

Mendive, Tapia Lorena. "Indole arylation in tryptophan residues: development of new chemical methodologies, synthetic studies and biological evaluation of modified peptides." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/401593.

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In the present thesis we have investigated the development of new methodologies for the selective and straightforward chemical modification of Trp amino acid either alone or in peptides. In the first chapter, we have optimized a method for the chemoselective C-arylation of Trp amino acid in the C-2 position of the free indole ring, based on a C-H activation protocol catalyzed by palladium. To further demonstrate the versatility of the protocol, indoles from tryptamines, indole- carboxylic acids, Trp amino acid and Trp-containing peptides (e.g. Brevianamide F) were selectively arylated. In p

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7

Schafheimer, Nathaniel (Steven Nathaniel). "Ultraviolet radiation-induced aggregation of human lens protein [g̳a̳m̳m̳a̳]D-crystallin : characterization of the protective tryptophan clusters and key sensitizing residues." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/83640.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 2013.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis. In title on title page [g̳a̳m̳m̳a̳] appear as lower case Greek letters.<br>Includes bibliographical references (pages. 162-178).<br>by Nathaniel Schafheimer.<br>Ph.D.

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8

Beers, Stephen Andrew. "Studies of the roles of high charge and a lack of tryptophan residues on the properties of human group 11A secreted phospholipase Aâ‚‚." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270393.

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9

ABABOU, ABDESSAMAD. "Contribution a l'etude des proteines par fluorescence temporelle : etude de l'heterogeneite des declins de fluorescence des proteines a un seul residu tryptophane." Université Louis Pasteur (Strasbourg) (1971-2008), 1998. http://www.theses.fr/1998STR13117.

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L'etude du comportement dynamique des proteines en solution constitue une etape indispensable, si l'on veut comprendre au niveau fondamental les fonctions biologiques multiples de ces edifices moleculaires. La spectroscopie de fluorescence resolue en temps peut apporter differentes informations sur la dynamique interne des proteines en solution. Souvent les proteines a un seul residu tryptophane (trp) presentent des cinetiques de fluorescence heterogenes (plus qu'une composante dans leur declin de fluorescence). Cette heterogeneite a ete largement associee a l'existence des equilibres acide-ba

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10

Larvor, Marie-Pierre. "Antigenicite, immunogenicite et conformation d'un peptide de 11 residus reconnu par un anticorps monoclonal specifique de la sous-unite beta 2 de la tryptophane synthase d'e. Coli." Paris 7, 1993. http://www.theses.fr/1993PA077067.

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Afin de preciser le mecanisme de l'interaction antigene/anticorps, des etudes ont ete entreprises avec des peptides synthetiques et un anticorps monoclonal dirige contre la sous-unite beta 2 de la tryptophane synthase d'e. Coli. L'un des peptides, long de 11 residus, est reconnu par l'anticorps monoclonal avec une affinite presqu'aussi forte que celle de la proteine native beta 2. Il a ete montre que ce peptide n'est pas immunogenique et qu'il n'existe donc pas obligatoirement de correlation entre l'antigenicite et l'immunogenicite d'un peptide. L'etude du peptide 11 en solution par rmn du pro

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11

Genet, Roger. "La l-tryptophane 2',3'-oxydase de chromobacterium violaceum : purification, caracterisation et clonage du gene. l'introduction d'une double liaison en position c alpha-c beta des residus tryptophanyles, au sein des peptides et des proteines." Paris 11, 1992. http://www.theses.fr/1992PA112391.

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Chromobacterium violaceum possede la capacite de metaboliser le carboxybenzoyl-l-tryptophane en un compose insature, possedant une double liaison entre ses carbones alpha et beta (davis et al. , bba (1975) 385:133-144). A partir de cette souche, nous avons purifie une nouvelle enzyme, nommee l-tryptophane 2,3-oxydase (trpox) ou l-tryptophane: oxygene 2,3-oxydoreductase (e. C. 1. 3. 3. X), qui catalyse specifiquement la formation d'une double liaison en position c alpha-c beta du l-tryptophane. Les caracteristiques structurales de l'enzyme ont ete etablies, et une etude des proprietes fonctionn

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12

羅兆盛. "Mutagenesis of the conserved tryptophan residue in cobrotoxin and a-bungarotoxin." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/97091708781218132288.

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碩士<br>高雄醫學大學<br>生物化學研究所<br>89<br>Abstract To investigate the structure and function of cobrotoxin ( CoTx, short chain) and a-bungarotoxin (a- BuTx, long chain) by chemical modification, we found that the conserved trptophan residue in CoTx play important role in neurotoxicity but it is not responsible for that of a-BuTx. The cDNAs encoding CoTx and a-Butx were constructed by PCR amplification of the venom gland RNA of Naja naja atra and Bungarus multicinctus, respectively. The cDNA products were subcloned into the expression vector pET32a(+) and transformed into Escherichia coli st

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13

Zhu, Xue-Gui, and 朱學桂. "Effects of the ninth position of residue, Tryptophan, on the structure, dynamics and activity of an antimicrobial peptide, Mastoparan-B." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/42318791324271208382.

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碩士<br>淡江大學<br>化學學系碩士班<br>102<br>Mastoparan B (MP-B), a tetradecapeptide toxin isolated from the venom of the hornet(Vespa basalis), is an amphiphilic α-helical peptide with a primary structure of Leu-Lys-Leu-Lys-Ser-Ile-Val-Ser-Trp-Ala-Lys-Lys-Val-Leu-NH2. It forms a random coil in aqueous solution and adopts an ampliphlic α-helical conformation in trifluoroethanol (TFE). A previous study showed that the ninth position of aromatic residue, Tryptophan, is important for the helical conformation. Recognizing this fact, we attempt to answer the question how the structure and the biological activi

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14

Singh, Amrita active 2012. "Protein evolution in the presence of an unnatural amino acid." Thesis, 2012. http://hdl.handle.net/2152/23413.

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The field of protein engineering has been greatly augmented by the expansion of the genetic code using unnatural amino acids as well as the development of cell-free synthesis systems with high protein yield. Cell-free synthesis systems have improved considerably since they were first described almost 40 years ago. Residue specific incorporation of non-canonical amino acids into proteins is usually performed in vivo using amino acid auxotrophic strains and replacing the natural amino acid with an unnatural amino acid analog. Herein, we present an amino acid depleted cell-free protein synthesis

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15

Chytrá, Dana. "Charakterizace glycinové smyčky alfa podjednotky mitochondriální procesující peptidasy Saccharomyces cerevisiae." Master's thesis, 2012. http://www.nusl.cz/ntk/nusl-310205.

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Mitochondrial processing peptidase (MPP) is a heterodimeric enzyme which belongs to M16B subfamily of metaloendopeptidases. A universal function of this enzyme is in recognition and cleavage of great number of mitochondrial preprotein presequences, which differ in length and amino acid sequence. MPP consists of catalytical β-MPP and probably recognizing α-MPP. The most conservative region in α-MPP is GRL - glycine-rich loop. Its function is supposed in primary interaction with preprotein presequence. It is possible to study conformational change of GRL after binding the substrate by fluorescen

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16

Li, Wei-Cheng, and 李韋成. "The Effect of Tryptophan Residues on The Transfection Efficiency of Indolicidin." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/c9fu2t.

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碩士<br>國立中央大學<br>化學工程與材料工程學系<br>106<br>In the previous study, Indolicidin (IL) was added a cystein to its N- and C- terminus, which were denoted as CIL and ILC, respectively. Using molecular dynamics simulations, we found that the grafted IL inserted into the cell membrane mainly related to their tryptophan residues. In order to validate these simulation results, the fourth and eighth tryptophans in the ILC sequence and the eighth and ninth tryptophans in the CIL sequence were replaced with glycine, which were denoted as ILC48 and CIL89, respectively. The hemolysis assay demonstrated that ILC a

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17

Cheng, Hao-Wei, and 鄭皓蔚. "FlAsH Labeled Peptide with Tryptophan Residues as a Caspase-3 Sensor." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/14256495053899819011.

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碩士<br>國立中央大學<br>化學學系<br>103<br>We synthesized a Caspase-3 sensor, FlAsH-3W2F-TC, whose fluorescence was quenched by tryptophan inside the peptidyl sensor backbone. By studying a series of FlAsH-labeled peptide sequences, tryptophan containing peptide sequence showed higher quenching ability than histidine and phenylalanine peptide sequences; the more tryptophan the peptide sequence contains, the higher quenching efficiency we get. The quenching phenomena is based on photo-induced electron transfer(PET). The excited fluorophore relax by conducting an electron through temporary collisional molec

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18

Chen, Yu-Chi, and 陳毓琪. "The Possible Roles of Tryptophan Residues in Porcine DNase II Activity." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/92488196370315284449.

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碩士<br>國立臺灣大學<br>生物化學暨分子生物學研究所<br>92<br>Deoxyribonuclease II (DNase II)(EC 3.1.22.1) is an acidic endonuclease with an optimal pH range between 4.5 and 5.5. It generally exists in the lysosome of many kinds of cells. It could function without metal ion activation and produce DNA fragments with 3’-P and 5’-OH groups. The cDNA of porcine DNase II, for example, has been published in 1998 in our laboratory. It is composed of three different subunits: ? subunit (2.6 kDa) containing 23 amino acids, β subunit (8.4kDa) containing 54 amino acids, and ? subunit (34kDa) containing 242 amino acids. One in

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19

Doebler, Robert William. "The role of Tryptohan residues within the membrane-binding domain of cytochrome b₅ /." 1997. http://wwwlib.umi.com/dissertations/fullcit/9738780.

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20

Doebler, Robert William. "The role of tryptophan residues within the membrane-binding domain of cytochrome b₅ /." 1997. http://wwwlib.umi.com/dissertations/fullcit/9738780.

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21

Chen, Yen Wei, and 陳彥瑋. "Functional and Fluorescence Analyses of Tryptophan Residues in H+-pyrophosphatase of Clostridium tetani." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/16703712793254919394.

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博士<br>國立清華大學<br>生物資訊與結構生物研究所<br>102<br>Homodimeric proton-translocating pyrophosphatase (H+-PPase; EC 3.6.1.1) maintains the cytoplasmic pH homeostasis of many bacteria and higher plants by coupling pyrophosphate (PPi) hydrolysis and proton translocation. H+-PPase accommodates several essential motifs involved in the catalytic mechanism, including the PPi binding motif and Acidic I and II motifs. In this study, 3 intrinsic tryptophan residues, Trp-75, Trp-365, and Trp-602, in H+-PPase from Clostridium tetani were used as internal probes to monitor the local conformational states of the peripla

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22

Okawa, Yuka. "Differential Roles of Tryptophan Residues in the Functional Expression of Human Anion Exchanger 1." Thesis, 2012. http://hdl.handle.net/1807/32614.

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Anion exchanger 1 (AE1) is a 95 kDa glycoprotein that facilitates Cl-/HCO3- exchange across the erythrocyte plasma membrane. Seven conserved tryptophan (Trp) residues are in the AE1 membrane domain; at the membrane interface (Trp648, Trp662, and Trp723), in transmembrane segment (TM) 4 (Trp492 and Trp496), and in hydrophilic loops (Trp831, and Trp848). All 7 Trp residues were individually mutated into alanine (Ala) and phenylalanine (Phe) and transiently expressed in human embryonic kidney (HEK)-293 cells. The 7 Trp residues could be grouped into three classes according to the impact of the mu

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23

Hong, Kai-Lin, and 洪凱琳. "Effects of the Three Tryptophan Residues on the Functions of an Immunomodulatory Protein from Ganoderma microsporum, GMI." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/9xeqgu.

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碩士<br>國立臺灣大學<br>生化科技學系<br>105<br>Ganoderma is a traditional Asian medicine, which contains many bioactive compounds, such as triterpenoids, polysaccharides, and fungal immunomodulatory proteins (FIPs). GMI is a FIPs found in Ganoderma microsporum, and successfully produced by pichia pastoris, a heterologous protein expression system. It was proved that recombine GMI was able to stimulate Jurkat T cell secreting IL-2, reduced inflammation, and killed cancer cell. GMI was multifunction, but it is difficult to become a drug because of the interactions of those functions. As a result, the detail m

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24

Mahalakshmi, R. "Aromatic Interactions In Peptides : Designed Helices And β-Hairpins". Thesis, 2006. http://hdl.handle.net/2005/458.

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Design of complex protein folds requires complete understanding of the stereochemical principles that govern polypeptide chain folding. Extensive studies on design and synthesis of specific secondary structures like β-helices, β -sheets and hairpins have taught us that the unnatural amino acid aminoisobutyric acid (Aib) can be successfully employed for helix nucleation and tight turns of appropriate stereochemistry are facilitated by the use of DPro-Xxx sequences. Availability of such rigid secondary structure scaffolds therefore permits the design of synthetic peptides that can be used as mo

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