Cellulase
From CSBLwiki
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|[http://www.cazy.org/GH44.html GH44]||B(E)||Cellulase family J||Endo-|| ||''Clostridium'' | |[http://www.cazy.org/GH44.html GH44]||B(E)||Cellulase family J||Endo-|| ||''Clostridium'' | ||
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| - | |[http://www.cazy.org/GH48.html GH48]||B,E|| ||Endo-|| ||''Clostridium'',''Hahella'' | + | |[http://www.cazy.org/GH48.html GH48]||B,E|| ||Endo-, Exo-(reducing end)|| ||''Clostridium'',''Hahella'' |
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Revision as of 03:29, 19 January 2011
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Mode of actions
- (Fungus) "The biological conversion of cellulose to glucose generally requires three types of hydrolytic enzymes: (1) Endoglucanases which cut internal beta-1,4-glucosidic bonds; (2) Exocellobiohydrolases that cut the dissaccharide cellobiose from the non-reducing end of the cellulose polymer chain; (3) Beta-1,4-glucosidases which hydrolyze the cellobiose and other short cello-oligosaccharides to glucose."[1]
Accessibility
Endoglucanse
- e.g. T. reesei EG-1; GH7; CBM1
Exoglucanase
- Reducing end acting exoglucanase (CBH I) from T. reesei; GH7; CBM1
- Non-reducing end acting (CBH II); GH6; CBM1
Mixed
Processivity
Synergism
Error fetching PMID 7980450:
- Error fetching PMID 7980450:
Substrates
Crystalline cellulose
Non-crystalline cellulose
etc.
CAZy GH families
| CAZy class | Taxonomic distribution | Gene name | Mode | Clan | Typical organisms |
|---|---|---|---|---|---|
| GH5 | A,B,E | Cellulase family A | GH-A | Saccharophagus,Clostridium | |
| GH6 | B,E | CBH-II, Cellulase family B | non-reducing end(exo) | Chrysosporium,Trichoderma,Saccharophagus | |
| GH7 | E | EG-I, CBH-I, Cellulase family C | reducing end(exo) | GH-B | |
| GH8 | B | Cellulase family D | Endo-, Exo- | GH-D | |
| GH9 | A,B,E | Cellulase family E | Endo- | ||
| GH44 | B(E) | Cellulase family J | Endo- | Clostridium | |
| GH48 | B,E | Endo-, Exo-(reducing end) | Clostridium,Hahella |
