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Difference between revisions of "Glycoside Hydrolase Family 93"
| Line 27: | Line 27: | ||
== Kinetics and Mechanism == | == Kinetics and Mechanism == | ||
| − | GH93 enzymes are exoenzymes which only release arabinobiose from the non-reducing end. | + | GH93 enzymes are exoenzymes which only release arabinobiose from the non-reducing end. Net retention of the configuration of the anomeric carbon is proposed from the products of the transglycosylation activity of the protein Abnx from ''Penicillium chrysogenum''. It was recently supported in the crystal structure of the Arb93A enzyme from ''Fusarium graminearum'' in complex with arabinobiose. |
== Catalytic Residues == | == Catalytic Residues == | ||
Revision as of 06:39, 28 July 2009
- Author: Annabelle Varrot
- Responsible Curator: Annabelle Varrot
| Glycoside Hydrolase Family GH93 | |
| Clan | GH-E |
| Mechanism | retaining |
| Active site residues | known |
| CAZy DB link | |
| http://www.cazy.org/fam/GH93.html | |
Substrate specificities
The characterized member of family 93 are known to hydrolyse α-1,5-L-arabinan. EC:3.2.1-
Kinetics and Mechanism
GH93 enzymes are exoenzymes which only release arabinobiose from the non-reducing end. Net retention of the configuration of the anomeric carbon is proposed from the products of the transglycosylation activity of the protein Abnx from Penicillium chrysogenum. It was recently supported in the crystal structure of the Arb93A enzyme from Fusarium graminearum in complex with arabinobiose.