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Artykuły w czasopismach na temat „Glycosidic bonds”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 19 lutego 2022

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1

Wang, Qian, Chao Gao, Nan Yang, and Katsuyoshi Nishinari. "Effect of simulated saliva components on the in vitro digestion of peanut oil body emulsion." RSC Advances 11, no. 49 (2021): 30520–31. http://dx.doi.org/10.1039/d1ra03274g.

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Joseleau, Jean-Paul, and Rachid Kesraoui. "Glycosidic Bonds between Lignin and Carbohydrates." Holzforschung 40, no. 3 (January 1986): 163–68. http://dx.doi.org/10.1515/hfsg.1986.40.3.163.

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Johnson, Glenn P., Luis Petersen, Alfred D. French, and Peter J. Reilly. "Twisting of glycosidic bonds by hydrolases." Carbohydrate Research 344, no. 16 (November 2009): 2157–66. http://dx.doi.org/10.1016/j.carres.2009.08.011.

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Khalilova, Gulnoza Abduvakhobovna, Abbaskhan Sabirkhanovich Turaev, Bahtiyor Ikromovich Muhitdinov, Albina Vasilevna Filatova, Saidakhon Bokijonovna Haytmetova та Nodirali Sokhobatalievich Normakhamatov. "Research On The Composition And Structure Of Β -Glucans Isolated From Basidiomycete Raw Materials Inonotus Hispidus". American Journal of Applied sciences 03, № 01 (19 січня 2021): 9–17. http://dx.doi.org/10.37547/tajas/volume03issue01-03.

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This article highlights the conducted researches on the composition and structure of β-glucans isolated from the basidiomycete raw material Inonotus hispidus. By means of using the alditol acetate method, as well as by UV and IR methods, one-dimensional (13C NMR, 1H NMR), two-dimensional (1H-1H COSY, 1H-13C HSQC) NMR spectroscopy, the composition and molecular structure of polysaccharides were determined and their branching was proved. It was clarified that the composition of the polysaccharide fractions consists mainly of glucose residues (68-100%), as well as residues of fructose, xylose, ma

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Weignerová, Lenka, Yukio Suzuki, Zdenka Huňková, Petr Sedmera, Vladimír Havlíček, Radek Marek, and Vladimír Křen. "Pyridoxine as a Substrate for Screening Synthetic Potential of Glycosidases." Collection of Czechoslovak Chemical Communications 64, no. 8 (1999): 1325–34. http://dx.doi.org/10.1135/cccc19991325.

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The reactions of glycosidases with pyridoxine were used for testing their ability to make new glycosidic bonds. Of 35 glycosidases examined, some exhibited regiospecificity towards one primary alcoholic group; glycosylation of phenolic hydroxyl group was not observed. A series of new glycosides of pyridoxine, 2-acetamido-2-deoxy-β-D-glucopyranosides, α-D-manno- pyranosides, and one α-D-galactopyranoside were prepared and completely characterized by MS and NMR.

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6

Kobayashi, Hirokazu, Yusuke Suzuki, Takuya Sagawa, Kyoichi Kuroki, Jun-ya Hasegawa, and Atsushi Fukuoka. "Impact of tensile and compressive forces on the hydrolysis of cellulose and chitin." Physical Chemistry Chemical Physics 23, no. 30 (2021): 15908–16. http://dx.doi.org/10.1039/d1cp01650d.

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Frański, R., P. Bednarek, D. Siatkowska, P. Wojtaszek, and M. Stobiecki. "Application of mass spectrometry to structural identification of flavonoid monoglycosides isolated from shoot of lupin (Lupinus luteus L.)." Acta Biochimica Polonica 46, no. 2 (June 30, 1999): 459–73. http://dx.doi.org/10.18388/abp.1999_4177.

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Flavonoid glycosides constitute important group of plant secondary metabolites. This class of natural products play significant role in different physiological processes. A new methodological approach where mass spectrometric techniques are applied to structural studies of this class of compounds is presented. Four flavonoid O-monoglycosides and one C-monoglycoside were isolated from green parts of lupin (Lupinus luteus L.). Several different mass spectrometric techniques were applied to structural elucidation of isolated compounds. Desorption ionization mass spectrometry was used for registra

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8

He, Xingxing, Fuyuan Zhang, Jifeng Liu, Guozhen Fang, and Shuo Wang. "Homogenous graphene oxide-peptide nanofiber hybrid hydrogel as biomimetic polysaccharide hydrolase." Nanoscale 9, no. 45 (2017): 18066–74. http://dx.doi.org/10.1039/c7nr06525f.

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Davies, Gideon J., Simon J. Charnock, and Bernard Henrissat. "The Enzymatic Synthesis of Glycosidic Bonds: "Glycosynthases" and Glycosyltransferases." Trends in Glycoscience and Glycotechnology 13, no. 70 (2001): 105–20. http://dx.doi.org/10.4052/tigg.13.105.

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Ibatullin, Farid M., Alexander M. Golubev, Leonid M. Firsov, and Kirill N. Neustroev. "A model for cleavage ofO-glycosidic bonds in glycoproteins." Glycoconjugate Journal 10, no. 3 (June 1993): 214–18. http://dx.doi.org/10.1007/bf00702202.

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11

Moriyama, Takanori, and Hisami Ikeda. "Hydrolases acting on glycosidic bonds: chromatographic and electrophoretic separations." Journal of Chromatography B: Biomedical Sciences and Applications 684, no. 1-2 (September 1996): 201–16. http://dx.doi.org/10.1016/0378-4347(96)00148-x.

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12

van der Kaaij, R. M., X. L. Yuan, A. Franken, A. F. J. Ram, P. J. Punt, M. J. E. C. van der Maarel та L. Dijkhuizen. "Two Novel, Putatively Cell Wall-Associated and Glycosylphosphatidylinositol-Anchored α-Glucanotransferase Enzymes of Aspergillus niger". Eukaryotic Cell 6, № 7 (11 травня 2007): 1178–88. http://dx.doi.org/10.1128/ec.00354-06.

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ABSTRACT In the genome sequence of Aspergillus niger CBS 513.88, three genes were identified with high similarity to fungal α-amylases. The protein sequences derived from these genes were different in two ways from all described fungal α-amylases: they were predicted to be glycosylphosphatidylinositol anchored, and some highly conserved amino acids of enzymes in the α-amylase family were absent. We expressed two of these enzymes in a suitable A. niger strain and characterized the purified proteins. Both enzymes showed transglycosylation activity on donor substrates with α-(1,4)-glycosidic bond

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13

Ipsen, Johan Ø., Magnus Hallas-Møller, Søren Brander, Leila Lo Leggio, and Katja S. Johansen. "Lytic polysaccharide monooxygenases and other histidine-brace copper proteins: structure, oxygen activation and biotechnological applications." Biochemical Society Transactions 49, no. 1 (January 15, 2021): 531–40. http://dx.doi.org/10.1042/bst20201031.

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Lytic polysaccharide monooxygenases (LPMOs) are mononuclear copper enzymes that catalyse the oxidative cleavage of glycosidic bonds. They are characterised by two histidine residues that coordinate copper in a configuration termed the Cu-histidine brace. Although first identified in bacteria and fungi, LPMOs have since been found in all biological kingdoms. LPMOs are now included in commercial enzyme cocktails used in industrial biorefineries. This has led to increased process yield due to the synergistic action of LPMOs with glycoside hydrolases. However, the introduction of LPMOs makes contr

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14

Bissaro, Bastien, Pierre Monsan, Régis Fauré, and Michael J. O’Donohue. "Glycosynthesis in a waterworld: new insight into the molecular basis of transglycosylation in retaining glycoside hydrolases." Biochemical Journal 467, no. 1 (March 20, 2015): 17–35. http://dx.doi.org/10.1042/bj20141412.

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Carbohydrates are ubiquitous in Nature and play vital roles in many biological systems. Therefore the synthesis of carbohydrate-based compounds is of considerable interest for both research and commercial purposes. However, carbohydrates are challenging, due to the large number of sugar subunits and the multiple ways in which these can be linked together. Therefore, to tackle the challenge of glycosynthesis, chemists are increasingly turning their attention towards enzymes, which are exquisitely adapted to the intricacy of these biomolecules. In Nature, glycosidic linkages are mainly synthesiz

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15

Zhang, Lilan, Puya Zhao, Chun-Chi Chen, Chun-Hsiang Huang, Tzu-Ping Ko, Yingying Zheng та Rey-Ting Guo. "Preliminary X-ray diffraction analysis of a thermophilic β-1,3–1,4-glucanase fromClostridium thermocellum". Acta Crystallographica Section F Structural Biology Communications 70, № 7 (19 червня 2014): 946–48. http://dx.doi.org/10.1107/s2053230x14009376.

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β-1,3–1,4-Glucanases catalyze the specific hydrolysis of internal β-1,4-glycosidic bonds adjacent to the 3-O-substituted glucose residues in mixed-linked β-glucans. The thermophilic glycoside hydrolase CtGlu16A fromClostridium thermocellumexhibits superior thermal profiles, high specific activity and broad pH adaptability. Here, the catalytic domain of CtGlu16A was expressed inEscherichia coli, purified and crystallized in the trigonal space groupP3121, with unit-cell parametersa=b= 74.5,c= 182.9 Å, by the sitting-drop vapour-diffusion method and diffracted to 1.95 Å resolution. The crystal co

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16

Müller, Jens. "Metal-mediated base pairs in parallel-stranded DNA." Beilstein Journal of Organic Chemistry 13 (December 13, 2017): 2671–81. http://dx.doi.org/10.3762/bjoc.13.265.

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In nucleic acid chemistry, metal-mediated base pairs represent a versatile method for the site-specific introduction of metal-based functionality. In metal-mediated base pairs, the hydrogen bonds between complementary nucleobases are replaced by coordinate bonds to one or two transition metal ions located in the helical core. In recent years, the concept of metal-mediated base pairing has found a significant extension by applying it to parallel-stranded DNA duplexes. The antiparallel-stranded orientation of the complementary strands as found in natural B-DNA double helices enforces a cisoid or

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17

Rohlenová, Anna, Miroslav Ledvina, David Šaman, and Karel Bezouška. "Synthesis of Linear and Branched Regioisomeric Chitooligosaccharides as Potential Mimetics of Natural Oligosaccharide Ligands of Natural Killer Cells NKR-P1 and CD69 Lectin Receptors." Collection of Czechoslovak Chemical Communications 69, no. 9 (2004): 1781–804. http://dx.doi.org/10.1135/cccc20041781.

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Regioisomer of chitobiose 13 with β(1→3) glycosidic bond and branched analog of chitotriose 25 having β(1→4) and β(1→3) glycosidic bonds, were prepared and tested as potential mimetics of natural oligosaccharide ligands for activating lectin receptors NKR-P1A and CD69 of natural killer (NK) cells. The structural requirements of NKR-P1 lectin receptor on effective mimetics of its natural ligands has been discussed. A significant binding activity of the branched trisaccharide 25 to the receptor CD69 was observed.

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18

Chaube, Manishkumar A., та Suvarn S. Kulkarni. "ChemInform Abstract: Stereoselective Construction of 1,1-α,α-Glycosidic Bonds". ChemInform 43, № 41 (13 вересня 2012): no. http://dx.doi.org/10.1002/chin.201241251.

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Mihelič, Marko, Kristina Vlahoviček-Kahlina, Miha Renko, Stephane Mesnage, Andreja Doberšek, Ajda Taler-Verčič, Andreja Jakas, and Dušan Turk. "The mechanism behind the selection of two different cleavage sites in NAG-NAM polymers." IUCrJ 4, no. 2 (February 23, 2017): 185–98. http://dx.doi.org/10.1107/s2052252517000367.

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Peptidoglycan is a giant molecule that forms the cell wall that surrounds bacterial cells. It is composed of alternatingN-acetylglucosamine (NAG) andN-acetylmuramic acid (NAM) residues connected by β-(1,4)-glycosidic bonds and cross-linked with short polypeptide chains. Owing to the increasing antibiotic resistance against drugs targeting peptidoglycan synthesis, studies of enzymes involved in the degradation of peptidoglycan, such asN-acetylglucosaminidases, may expose new, valuable drug targets. The scientific challenge addressed here is how lysozymes, muramidases which are likely to be the

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20

Striegler, Susanne, Qiu-Hua Fan та Nigam P. Rath. "Binuclear copper(II) complexes discriminating epimeric glycosides and α- and β-glycosidic bonds in aqueous solution". Journal of Catalysis 338 (червень 2016): 349–64. http://dx.doi.org/10.1016/j.jcat.2015.12.026.

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21

Maliekkal, Vineet, Saurabh Maduskar, Derek J. Saxon, Mohammadreza Nasiri, Theresa M. Reineke, Matthew Neurock, and Paul Dauenhauer. "Activation of Cellulose via Cooperative Hydroxyl-Catalyzed Transglycosylation of Glycosidic Bonds." ACS Catalysis 9, no. 3 (December 31, 2018): 1943–55. http://dx.doi.org/10.1021/acscatal.8b04289.

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Panzeter, Phyllis L., Barbara Zweifel та Felix R. Althaus. "The α-glycosidic bonds of poly(ADP-ribose) are acid-labile". Biochemical and Biophysical Research Communications 184, № 1 (квітень 1992): 544–48. http://dx.doi.org/10.1016/0006-291x(92)91229-j.

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23

El Ashry, El Sayed H., and Mohamed R. E. Aly. "Synthesis and biological relevance of N-acetylglucosamine-containing oligosaccharides." Pure and Applied Chemistry 79, no. 12 (January 1, 2007): 2229–42. http://dx.doi.org/10.1351/pac200779122229.

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The structural diversity as well as the biological significance of N-acetylglucosamine-containing glycans are exemplified. The problem of forming the respective glycosidic bonds of synthetic targets is addressed. Special emphasis has been given to human milk oligosaccharides (HMOs), in view of their biological relevance, and synthetic approaches of selected examples are reported.

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Pote, Aditya R., Sergi Pascual, Antoni Planas, and Mark W. Peczuh. "Indolyl Septanoside Synthesis for In Vivo Screening of Bacterial Septanoside Hydrolases." International Journal of Molecular Sciences 22, no. 9 (April 26, 2021): 4497. http://dx.doi.org/10.3390/ijms22094497.

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Building-up and breaking-down of carbohydrates are processes common to all forms of life. Glycoside hydrolases are a broad class of enzymes that play a central role in the cleavage of glycosidic bonds, which is fundamental to carbohydrate degradation. The large majority of substrates are five- and six-membered ring glycosides. Our interest in seven-membered ring septanose sugars has inspired the development of a way to search for septanoside hydrolase activity. Described here is a strategy for the discovery of septanoside hydrolases that uses synthetic indolyl septanosides as chromogenic subst

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Zhang, Xiaochen, Zhe Zhang, Feng Wang, Yehong Wang, Qi Song, and Jie Xu. "Lignosulfonate-based heterogeneous sulfonic acid catalyst for hydrolyzing glycosidic bonds of polysaccharides." Journal of Molecular Catalysis A: Chemical 377 (October 2013): 102–7. http://dx.doi.org/10.1016/j.molcata.2013.05.001.

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Pinto, José-Henrique Q., and Serge Kaliaguine. "A Monte Carlo analysis of acid hydrolysis of glycosidic bonds in polysaccharides." AIChE Journal 37, no. 6 (June 1991): 905–14. http://dx.doi.org/10.1002/aic.690370613.

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Fan, Jingjing, Minghao Zhang, Zhiyi Ai, Jing Huang, Yonghong Wang, Shengyuan Xiao, and Yuhua Wang. "Highly regioselective hydrolysis of the glycosidic bonds in ginsenosides catalyzed by snailase." Process Biochemistry 103 (April 2021): 114–22. http://dx.doi.org/10.1016/j.procbio.2021.02.013.

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Southwick, Audrey M., Lai-Xi Wang, Sharon R. Long, and Yuan C. Lee. "Activity of Sinorhizobium meliloti NodAB and NodH Enzymes on Thiochitooligosaccharides." Journal of Bacteriology 184, no. 14 (July 15, 2002): 4039–43. http://dx.doi.org/10.1128/jb.184.14.4039-4043.2002.

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ABSTRACT Rhizobium bacteria synthesize signal molecules called Nod factors that elicit responses in the legume root during nodulation. Nod factors, modified N-acylated β-(1,4)-N-acetylglucosamine, are synthesized by the nodulation (nod) gene products. We tested the ability of three Sinorhizobium meliloti nod gene products to modify Nod factor analogs with thio linkages instead of O-glycosidic bonds in the oligosaccharide backbone.

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Frandsen, Kristian E. H., Jens-Christian Navarro Poulsen, Morten Tovborg, Katja S. Johansen, and Leila Lo Leggio. "Learning from oligosaccharide soaks of crystals of an AA13 lytic polysaccharide monooxygenase: crystal packing, ligand binding and active-site disorder." Acta Crystallographica Section D Structural Biology 73, no. 1 (January 1, 2017): 64–76. http://dx.doi.org/10.1107/s2059798316019641.

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Lytic polysaccharide monooxygenases (LPMOs) are a class of copper-dependent enzymes discovered within the last ten years. They oxidatively cleave polysaccharides (chitin, lignocellulose, hemicellulose and starch-derived), presumably making recalcitrant substrates accessible to glycoside hydrolases. Recently, the first crystal structure of an LPMO–substrate complex was reported, giving insights into the interaction of LPMOs with β-linked substrates (Frandsenet al., 2016). The LPMOs acting on α-linked glycosidic bonds (family AA13) display binding surfaces that are quite different from those of

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Iakiviak, Michael, Roderick I. Mackie, and Isaac K. O. Cann. "Functional Analyses of Multiple Lichenin-Degrading Enzymes from the Rumen Bacterium Ruminococcus albus 8." Applied and Environmental Microbiology 77, no. 21 (September 2, 2011): 7541–50. http://dx.doi.org/10.1128/aem.06088-11.

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ABSTRACTRuminococcus albus8 is a fibrolytic ruminal bacterium capable of utilization of various plant cell wall polysaccharides. A bioinformatic analysis of a partial genome sequence ofR. albusrevealed several putative enzymes likely to hydrolyze glucans, including lichenin, a mixed-linkage polysaccharide of glucose linked together in β-1,3 and β-1,4 glycosidic bonds. In the present study, we demonstrate the capacity of four glycoside hydrolases (GHs), derived fromR. albus, to hydrolyze lichenin. Two of the genes encoded GH family 5 enzymes (Ra0453 and Ra2830), one gene encoded a GH family 16

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Oana, Cioanca, Trifan Adriana, Cornelia Mircea, Scripcariu Dragos, and Hancianu Monica. "Natural Macromolecules with Protective and Antitumor Activity." Anti-Cancer Agents in Medicinal Chemistry 18, no. 5 (August 21, 2018): 675–83. http://dx.doi.org/10.2174/1871520618666180425115029.

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This review summarizes the literature data regarding plant lectins as novel drug sources in the prevention or treatment of cancer. Moreover, such compounds have been described as natural toxins that possess different biological activities (cytotoxic, antitumor, antimutagenic and anticarcinogenic properties). This activity depends greatly on their structure and affinity. Most of the mushroom heterosides are known as β-glucans with β-(1→3)-glycosidic bonds. It is thought that their conformation, bonds, molecular size can modulate the immune response by triggering different receptors. The mechani

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Engelen, Adrianus J., Fred C. Van Der Heeft, and Peter H. G. Randsdorp. "Viscometric Determination of p-Glucanase and Endoxylanase Activity in Feed." Journal of AOAC INTERNATIONAL 79, no. 5 (September 1, 1996): 1019–25. http://dx.doi.org/10.1093/jaoac/79.5.1019.

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Abstract A method is described for viscometric determination of enzymatic activity of β-glucanase and endoxylanase in feed samples. The method is based on determination of the decrease in viscosity as a result of hydrolysis of glycosidic bonds in β-glucan and xylan at pH 3.5. This method does not require a blank sample (feed without enzyme addition), and it does not need standard addition for reliable quantitation.

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Goddat, J. "Synthesis of di- and tri-saccharides with intramolecular NH-glycosidic linkages: molecules with flexible and rigid glycosidic bonds for conformational studies." Carbohydrate Research 252, no. 1 (January 15, 1994): 159–70. http://dx.doi.org/10.1016/0008-6215(94)84130-6.

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Goddat, Jacqueline, Arthur A. Grey, Milos Hricovíni, Jeremy Grushcow, Jeremy P. Carver, and Rajan N. Shah. "Synthesis of di- and tri-saccharides with intramolecular NH-glycosidic linkages: molecules with flexible and rigid glycosidic bonds for conformational studies." Carbohydrate Research 252 (January 1994): 159–70. http://dx.doi.org/10.1016/0008-6215(94)90013-2.

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Li, Kaixin, Limin Deng, Shun Yi, Yabo Wu, Guangjie Xia, Jun Zhao, Dong LU, and Yonggang Min. "Boosting the performance by the water solvation shell with hydrogen bonds on protonic ionic liquids: insights into the acid catalysis of the glycosidic bond." Catalysis Science & Technology 11, no. 10 (2021): 3527–38. http://dx.doi.org/10.1039/d0cy02459g.

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Islam, Nazrul, Hui Wang, Faheem Maqbool, and Vito Ferro. "In Vitro Enzymatic Digestibility of Glutaraldehyde-Crosslinked Chitosan Nanoparticles in Lysozyme Solution and Their Applicability in Pulmonary Drug Delivery." Molecules 24, no. 7 (April 1, 2019): 1271. http://dx.doi.org/10.3390/molecules24071271.

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Herein, the degradation of low molecular weight chitosan (CS), with 92% degree of deacetylation (DD), and its nanoparticles (NP) has been investigated in 0.2 mg/mL lysozyme solution at 37 °C. The CS nanoparticles were prepared using glutaraldehyde crosslinking of chitosan in a water-in-oil emulsion system. The morphological characterization of CS particles was carried out using scanning electron microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. Using attenuated total reflectance Fourier transform infrared (ATR-FTIR) and UV-VIS spectroscopy, the structural integrity of CS

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de Ruyck, Jerome, Marc F. Lensink, and Julie Bouckaert. "Structures ofC-mannosylated anti-adhesives bound to the type 1 fimbrial FimH adhesin." IUCrJ 3, no. 3 (February 26, 2016): 163–67. http://dx.doi.org/10.1107/s2052252516002487.

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Selective inhibitors of the type 1 fimbrial adhesin FimH are recognized as attractive alternatives for antibiotic therapies and prophylaxes againstEscherichia coliinfections such as urinary-tract infections. To construct these inhibitors, the α-D-mannopyranoside of high-mannoseN-glycans, recognized with exclusive specificity on glycoprotein receptors by FimH, forms the basal structure. A hydrophobic aglycon is then linked to the mannose by the O1 oxygen inherently present in the α-anomeric configuration. Substitution of this O atom by a carbon introduces aC-glycosidic bond, which may enhance t

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Damián-Almazo, Juanita Yazmin, Alina Moreno, Agustin López-Munguía, Xavier Soberón, Fernando González-Muñoz та Gloria Saab-Rincón. "Enhancement of the Alcoholytic Activity of α-Amylase AmyA from Thermotoga maritima MSB8 (DSM 3109) by Site-Directed Mutagenesis". Applied and Environmental Microbiology 74, № 16 (13 червня 2008): 5168–77. http://dx.doi.org/10.1128/aem.00121-08.

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ABSTRACT AmyA, an α-amylase from the hyperthermophilic bacterium Thermotoga maritima, is able to hydrolyze internal α-1,4-glycosidic bonds in various α-glucans at 85°C as the optimal temperature. Like other glycoside hydrolases, AmyA also catalyzes transglycosylation reactions, particularly when oligosaccharides are used as substrates. It was found that when methanol or butanol was used as the nucleophile instead of water, AmyA was able to catalyze alcoholysis reactions. This capability has been evaluated in the past for some α-amylases, with the finding that only the saccharifying fungal amyl

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BORASTON, Alisdair B., David N. BOLAM, Harry J. GILBERT, and Gideon J. DAVIES. "Carbohydrate-binding modules: fine-tuning polysaccharide recognition." Biochemical Journal 382, no. 3 (September 7, 2004): 769–81. http://dx.doi.org/10.1042/bj20040892.

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The enzymic degradation of insoluble polysaccharides is one of the most important reactions on earth. Despite this, glycoside hydrolases attack such polysaccharides relatively inefficiently as their target glycosidic bonds are often inaccessible to the active site of the appropriate enzymes. In order to overcome these problems, many of the glycoside hydrolases that utilize insoluble substrates are modular, comprising catalytic modules appended to one or more non-catalytic CBMs (carbohydrate-binding modules). CBMs promote the association of the enzyme with the substrate. In view of the central

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Fleming, Kelly L., та Jim Pfaendtner. "Characterizing the Catalyzed Hydrolysis of β-1,4 Glycosidic Bonds Using Density Functional Theory". Journal of Physical Chemistry A 117, № 51 (10 грудня 2013): 14200–14208. http://dx.doi.org/10.1021/jp4081178.

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Sørensen, Trine Holst, Nicolaj Cruys-Bagger, Kim Borch, and Peter Westh. "Free Energy Diagram for the Heterogeneous Enzymatic Hydrolysis of Glycosidic Bonds in Cellulose." Journal of Biological Chemistry 290, no. 36 (July 16, 2015): 22203–11. http://dx.doi.org/10.1074/jbc.m115.659656.

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Chen, Yun, Jian-Wen Huang, Chun-Chi Chen, Hui-Lin Lai, Jian Jin та Rey-Ting Guo. "Crystallization and preliminary X-ray diffraction analysis of an endo-1,4-β-D-glucanase fromAspergillus aculeatusF-50". Acta Crystallographica Section F Structural Biology Communications 71, № 4 (20 березня 2015): 397–400. http://dx.doi.org/10.1107/s2053230x15003659.

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Cellulose is the most abundant renewable biomass on earth, and its decomposition has proven to be very useful in a wide variety of industries. Endo-1,4-β-D-glucanase (EC 3.2.1.4; endoglucanase), which can catalyze the random hydrolysis of β-1,4-glycosidic bonds to cleave cellulose into smaller fragments, is a key cellulolytic enzyme. An endoglucanase isolated fromAspergillus aculeatusF-50 (FI-CMCase) that was classified into glycoside hydrolase family 12 has been found to be effectively expressed in the industrial strainPichia pastoris. Here, recombinant FI-CMCase was crystallized. Crystals be

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Nemzer, Boris V., Diganta Kalita, Alexander Ya Yashin, Nikolay E. Nifantiev, and Yakov I. Yashin. "In vitro Antioxidant Activities of Natural Polysaccharides: An overview." Journal of Food Research 8, no. 6 (October 29, 2019): 78. http://dx.doi.org/10.5539/jfr.v8n6p78.

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Polysaccharides are naturally occurring biomacromolecules composed of carbohydrate molecules linked by glycosidic bonds. A number of polysaccharides are known to possess beneficial therapeutic effects against inflammation, diabetes, cardiovascular diseases, and cancers. Indeed, polysaccharides are reportedly effective free radical scavengers and antioxidants, thereby playing a critical role in the prevention of damage to living organisms under oxidative stress. In this review we provide an overview of the sources, extraction, and antioxidant activities of some natural polysaccharides.

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Nifantiev, N. E., A. A. Sherman, O. N. Yudina, P. E. Cheshev, Y. E. Tsvetkov, E. A. Khatuntseva, A. V. Kornilov, and A. S. Shashkov. "New schemes for the synthesis of glycolipid oligosaccharide chains." Pure and Applied Chemistry 76, no. 9 (September 30, 2004): 1705–14. http://dx.doi.org/10.1351/pac200476091705.

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The driving force for the constant improvement and development of synthetic methodologies in carbohydrate chemistry is the importance of natural oligosaccharide chains in numerous biological phenomena such as cell growth, differentiation, adhesion, etc. Here, we report our syntheses of the spacer-armed oligosaccharides of sialylated lacto- and neo- lacto-, globo-, ganglio-, and sulfoglucuronylparagloboside-series, which include new rationally designed synthetic blocks, efficient solutions for the stereoselective construction of glycosidic bonds, and novel protection group strategies.

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Davies, Gideon J., and Spencer J. Williams. "Carbohydrate-active enzymes: sequences, shapes, contortions and cells." Biochemical Society Transactions 44, no. 1 (February 9, 2016): 79–87. http://dx.doi.org/10.1042/bst20150186.

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The enzyme-catalysed degradation of oligo and polysaccharides is of considerable interest in many fields ranging from the fundamental–understanding the intrinsic chemical beauty–through to the applied, including diverse practical applications in medicine and biotechnology. Carbohydrates are the most stereochemically-complex biopolymer, and myriad different natural polysaccharides have led to evolution of multifaceted enzyme consortia for their degradation. The glycosidic bonds that link sugar monomers are among the most chemically-stable, yet enzymatically-labile, bonds in the biosphere. That

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Liu, Ping, Jiao Xue, Shisheng Tong, Wenxia Dong, and Peipei Wu. "Structure Characterization and Hypoglycaemic Activities of Two Polysaccharides from Inonotus obliquus." Molecules 23, no. 8 (August 4, 2018): 1948. http://dx.doi.org/10.3390/molecules23081948.

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In the present study, two polysaccharides (HIOP1-S and HIOP2-S) were isolated and purified from Inonotus obliquus using DEAE-52 cellulose and Sephadex G-100 column chromatography. The structural characterization and in vitro and in vivo hypoglycaemic activities of these molecules were investigated. HPLC analysis HIOP1-S was a heterpolysaccharide with glucose and galactose as the main compontent monosaccharides (50.247%, molar percentages). However, HIOP2-S was a heterpolysaccharide with glucose as the main monosaccharide (49.881%, molar percentages). The average molecular weights of HIOP1-S an

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Tremmel, Martina, Josef Kiermaier, and Jörg Heilmann. "In Vitro Metabolism of Six C-Glycosidic Flavonoids from Passiflora incarnata L." International Journal of Molecular Sciences 22, no. 12 (June 18, 2021): 6566. http://dx.doi.org/10.3390/ijms22126566.

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Several medical plants, such as Passiflora incarnata L., contain C-glycosylated flavonoids, which may contribute to their efficacy. Information regarding the bioavailability and metabolism of these compounds is essential, but not sufficiently available. Therefore, the metabolism of the C-glycosylated flavones orientin, isoorientin, schaftoside, isoschaftoside, vitexin, and isovitexin was investigated using the Caco-2 cell line as an in vitro intestinal and epithelial metabolism model. Isovitexin, orientin, and isoorientin showed broad ranges of phase I and II metabolites containing hydroxylate

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GODDAT, J., A. A. GREY, M. HRICOVINI, J. GRUSHCOW, J. P. CARVER, and R. N. SHAH. "ChemInform Abstract: Synthesis of Di- and Trisaccharides with Intramolecular NH-Glycosidic Linkages: Molecules with Flexible and Rigid Glycosidic Bonds for Conformational Studies." ChemInform 25, no. 23 (August 19, 2010): no. http://dx.doi.org/10.1002/chin.199423221.

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NAKATANI, Hiroshi. "Monte Carlo simulation of hyaluronidase reaction involving hydrolysis, transglycosylation and condensation." Biochemical Journal 365, no. 3 (August 1, 2002): 701–5. http://dx.doi.org/10.1042/bj20011769.

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The action of hyaluronidase on oligosaccharides from hyaluronan is complicated due to branched reaction paths containing hydrolysis, transglycosylation and condensation. The unit component of hyaluronan is a disaccharide, namely GlcA-(β1→3)-GlcNAc where GlcA and GlcNAc are d-glucuronic acid and d-N-acetylglucosamine respectively. Hyaluronan is the linear polymer formed by these disaccharide units, linked together with β1→4 glycosidic bonds. Bovine testicular hyaluronidase acts only at β1→4 glycosidic bonds of hyaluronan. The progress of product distribution from short oligosaccharides was simu

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Franceus, Jorick, and Tom Desmet. "A GH13 glycoside phosphorylase with unknown substrate specificity from Corallococcus coralloides." Amylase 3, no. 1 (January 1, 2019): 32–40. http://dx.doi.org/10.1515/amylase-2019-0003.

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Abstract Glycoside phosphorylases in subfamily GH13_18 of the carbohydrate-active enzyme database CAZy catalyse the reversible phosphorolysis of α-glycosidic bonds. They contribute to a more energy-efficient metabolism in vivo, and can be applied for the synthesis of valuable glucosides, sugars or sugar phosphates in vitro. Continuing our efforts to uncover new phosphorylase specificities, we identified an enzyme from the myxobacterium Corallococcus coralloides DSM 2259 that does not feature the signature sequence patterns of previously characterised phosphorylases. The enzyme was recombinantl

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