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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)

KM Value

KM Value on EC 3.2.1.91 - cellulose 1,4-beta-cellobiosidase (non-reducing end)

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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.0015 - 0.214
2,4-dinitrophenyl cellobiose
4.5
2-chloro-4-nitrophenyl-beta-D-cellotrioside
-
pH 5, 50°C
0.83
2-chloronitrophenyl-beta-D-lactoside
-
pH 6, 60°C
0.6 - 4.6
4-nitrophenyl beta-D-cellobioside
3
4-nitrophenyl beta-D-lactoside
-
pH 5.0, 30°C
0.04 - 1.8
4-nitrophenyl lactoside
0.42
4-nitrophenyl-beta-D-cellobioside
-
pH 6, 60°C
0.77 - 2.35
alpha-cellobiosyl fluoride
0.022 - 0.15
beta-cellobiosyl fluoride
14
cellohexaose
pH 5, 27°C, wild-type enzyme
1.3 - 1.4
cellopentaose
2.6 - 4
cellotetraose
17
cellotriose
pH 5, 27°C, wild-type enzyme
0.1 - 3.08
p-nitrophenyl-beta-D-cellobioside
3
p-Nitrophenyl-lactoside
-
-
additional information
Barley beta-glucan