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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)

Specific Activity

Specific Activity on EC 3.2.1.91 - cellulose 1,4-beta-cellobiosidase (non-reducing end)

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SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.51
-
crude enzyme, at pH 4.0 and 60°C
1.1
-
after 23.1fold purification, at pH 6.0 and 37°C for 15 min using avicel as substrate
1.6
purified recombinant enzyme, substrate 4-methylumbelliferyl beta-D-lactoside
1.72
purified recombinant enzyme from Pichia pastoris, pH 5.0, 50°C
10.8
-
after4.2fold purification, pH 5.0, 60°C
108
-
after 23.1fold purification, at pH 6.0 and 37°C for 15 min using carboxymethyl cellulose as substrate
16.5
-
substrate avicel, pH 5, 50°C
18
-
p-nitrophenyl lactose
18.7
-
p-nitrophenyl-beta-D-cellobioside
18.8
-
carboxymethyl cellulose
1809
-
after 23.1fold purification, at pH 6.0 and 37°C for 15 min using barley beta-glucan as substrate
2.15
purified recombinant enzyme, substrate 4-methylumbelliferyl beta-D-cellobioside
2.4
purified recombinant enzyme from Yarrowia lipolytica, pH 5.0, 50°C
2.6
-
crude enzyme, pH 5.0, 60°C
20.3
-
substrate acid-swollen avicel, 17-residue N-terminal truncation mutant, pH 6.0, 45°C
20.9
-
native Ex-1, substrate Avicel
23.9
-
deglycosylated recombinant Ex-1, substrate Avicel
25
-
deglycosylated recombinant Ex-1, substrate carboxymethyl cellulose
3.3
-
after 23.1fold purification, at pH 6.0 and 37°C for 15 min using phosphoric acid-swollen avicel as substrate
317
-
after 23.1fold purification, at pH 6.0 and 37°C for 15 min using lichenan as substrate
4
-
crude cell extract, using 4-nitrophenyl beta-D-cellobioside as substrate, at pH 5.0, 50°C
4.195
-
after 8.22fold purification, at pH 4.0 and 60°C
41
substrate 4-methylumbelliferyl beta-D-cellobioside, pH 5.0, 50°C
4564
-
substrate barley beta-glucan, 17-residue N-terminal truncation mutant, pH 6.0, 45°C
66.5
-
after 4.05fold purification, pH and temperature not specified in the publication
8.7
-
crude enzyme, at pH 6.0 and 37°C for 15 min using 0.5% lichenan as substrate
additional information