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Difference between revisions of "Glycoside Hydrolase Family 120"
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== Substrate specificities == | == Substrate specificities == | ||
[[Glycoside hydrolases]] of family GH120 are β-xylosidases. XylC from ''Thermoanaerobacterium saccharolyticum'' hydrolyzed xylobiose and xylotriose, and aryl β-xylosides <cite>Shao2011</cite>. No activity was detected on oat spelt or birch wood xylans. Both ''T. saccharolyticum'' XylC and XylB from ''Bifidobacterium adolescentis'' can hydrolyze assorted aryl β-xylosides <cite>Shao2011 Cecchini2015</cite>. | [[Glycoside hydrolases]] of family GH120 are β-xylosidases. XylC from ''Thermoanaerobacterium saccharolyticum'' hydrolyzed xylobiose and xylotriose, and aryl β-xylosides <cite>Shao2011</cite>. No activity was detected on oat spelt or birch wood xylans. Both ''T. saccharolyticum'' XylC and XylB from ''Bifidobacterium adolescentis'' can hydrolyze assorted aryl β-xylosides <cite>Shao2011 Cecchini2015</cite>. | ||
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== Kinetics and Mechanism == | == Kinetics and Mechanism == | ||
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== Family Firsts == | == Family Firsts == | ||
| − | ;First stereochemistry determination: | + | ;First stereochemistry determination: Observation of transglycosylation by ''T. saccharolyticum'' XylC <cite>Shao2011</cite>. |
;First catalytic nucleophile identification: Content is to be added here. | ;First catalytic nucleophile identification: Content is to be added here. | ||
;First general acid/base residue identification: Content is to be added here. | ;First general acid/base residue identification: Content is to be added here. | ||
| − | ;First 3-D structure: | + | ;First 3-D structure: XylC from ''T. saccharolyticum'' (PDB ID [{{PDBlink}}3vsv 3vsv]) <cite>Huang2012</cite>. |
== References == | == References == | ||
Revision as of 19:36, 24 November 2016
This page is currently under construction. This means that the Responsible Curator has deemed that the page's content is not quite up to CAZypedia's standards for full public consumption. All information should be considered to be under revision and may be subject to major changes.
- Author: ^^^Spencer Williams^^^
- Responsible Curator: ^^^Spencer Williams^^^
| Glycoside Hydrolase Family GH120 | |
| Clan | none |
| Mechanism | retaining |
| Active site residues | known |
| CAZy DB link | |
| https://www.cazy.org/GH120.html | |
Substrate specificities
Glycoside hydrolases of family GH120 are β-xylosidases. XylC from Thermoanaerobacterium saccharolyticum hydrolyzed xylobiose and xylotriose, and aryl β-xylosides [1]. No activity was detected on oat spelt or birch wood xylans. Both T. saccharolyticum XylC and XylB from Bifidobacterium adolescentis can hydrolyze assorted aryl β-xylosides [1, 2].
Kinetics and Mechanism
Content is to be added here.
Catalytic Residues
Content is to be added here.
Three-dimensional structures
Content is to be added here.
Family Firsts
- First stereochemistry determination
- Observation of transglycosylation by T. saccharolyticum XylC [1].
- First catalytic nucleophile identification
- Content is to be added here.
- First general acid/base residue identification
- Content is to be added here.
- First 3-D structure
- XylC from T. saccharolyticum (PDB ID 3vsv) [3].
References
- Shao W, Xue Y, Wu A, Kataeva I, Pei J, Wu H, and Wiegel J. (2011). Characterization of a novel beta-xylosidase, XylC, from Thermoanaerobacterium saccharolyticum JW/SL-YS485. Appl Environ Microbiol. 2011;77(3):719-26. DOI:10.1128/AEM.01511-10 |
- Cecchini DA, Fauré R, Laville E, and Potocki-Veronese G. (2015). Biochemical identification of the catalytic residues of a glycoside hydrolase family 120 β-xylosidase, involved in xylooligosaccharide metabolisation by gut bacteria. FEBS Lett. 2015;589(20 Pt B):3098-106. DOI:10.1016/j.febslet.2015.08.012 |
- Huang CH, Sun Y, Ko TP, Chen CC, Zheng Y, Chan HC, Pang X, Wiegel J, Shao W, and Guo RT. (2012). The substrate/product-binding modes of a novel GH120 β-xylosidase (XylC) from Thermoanaerobacterium saccharolyticum JW/SL-YS485. Biochem J. 2012;448(3):401-7. DOI:10.1042/BJ20121359 |