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3.2.1.91: cellulose 1,4-beta-cellobiosidase (non-reducing end)

This is an abbreviated version!
For detailed information about cellulose 1,4-beta-cellobiosidase (non-reducing end), go to the full flat file.

Word Map on EC 3.2.1.91

Reaction

2 cellohexaose + 2 H2O = 2 cellotriose +

cellotetraose
+
cellobiose

Synonyms

1,4-beta-cellobiohydrolase, 1,4-beta-D-glucan cellobiohydrolase, 1,4-beta-glucan cellobiohydrolase, 1,4-beta-glucan cellobiosidase, avicelase, avicelase II, beta-1,4-glucan cellobiohydrolase, beta-1,4-glucan cellobiosylhydrolase, beta-1,4-glycanase, Beta-1,4-glycanase CEX, Beta-glucancellobiohydrolase, C1 cellulase, CBH, CBH 1, Cbh C, CBH I, CBH Ib, CBH II, CBH IIb, CBH1, CBH2, Cbh6B, Cbh9A, CbhA, CBHI, CBHII, Cbhl.2, CBM3-GH5, CBP120, CBP95, CbsA, Cel5A, Cel6, Cel6A, Cel6B, Cel6C, Cel7A, Cel7D, CelA, CelAB, CelB, CelC7, CelK, cellobiohydrolase, cellobiohydrolase 1, cellobiohydrolase 9A, cellobiohydrolase A, cellobiohydrolase class II, cellobiohydrolase I, cellobiohydrolase II, cellobiohydrolase, exo-, cellobiosidase, cellobiosidase, 1,4-beta-glucan, Celluclast 1.5, Cellulase, cellulase, C1, Cex, Csac_1078, Ex-1, Ex-4, exo-1,4-beta-D-glucan cellobiohydrolase, exo-1,4-beta-D-glucanase, exo-beta-1,4-cellobiohydrolase, exo-beta-1,4-glucan cellobiohydrolase, exo-cellobiohydrolase, exocellobiohydrolase, exocellulase, exocellulase E3, exoglucanase, GH5, glucanase, Huta_2387, More, nonreducing end-acting cellobiohydrolase, oligosaccharide-specific cellobiohydrolase, PSCase, SCO6546, Ta Cel7A, THITE_126432, TTCBH6B

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.91 cellulose 1,4-beta-cellobiosidase (non-reducing end)

pH Stability

pH Stability on EC 3.2.1.91 - cellulose 1,4-beta-cellobiosidase (non-reducing end)

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pH STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
3 - 10
-
6°C, 48 h
393747
3 - 5
-
native Ex-1
665332
3 - 6
-
the enzyme is stable for 1 h at pH 3.0 to 6.0 in acetate buffer
752111
3 - 8
3.5 - 7
-
-
742765
4 - 9
the enzyme is stable over a wide pH range from 5.0-7.0, however, more than 75% of the cellulase activity is lost at pH 4.0 and 9.0 after 1 h
745229
4.5 - 5
-
highest stability
393740
4.5 - 7
-
-
393785
5 - 11
-
-
735787
5.2 - 11.3
-
the enzyme is stable over a wide range of pH 5.2-11.3 after 1 h incubation (more than 70% activity remaining)
732870
5.5 - 6
purified recombinant enzymes, 100% stable in the range pH 5-6, undergoing rapid inactivation at alkaline pH and showing some instability below pH 5
732493
5.5 - 8
5.5 - 8.4
-
stable at 4°C for 48 h
654177
6 - 8.4
-
stable at 60°C for 5 h, stability decreases with incubation time above 5 h
654177
8
wild-type enzyme is less stable than E107Q and E107Q/D170N/D366N mutants
654671