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Literature summary for 3.2.1.91 extracted from

  • Kataeva, I.A.; Seidel, R.D., 3rd; Shah, A.; West, L.T.; Li, X.L.; Ljungdahl, L.G.
    The fibronectin type 3-like repeat from the Clostridium thermocellum cellobiohydrolase CbhA promotes hydrolysis of cellulose by modifying its surface (2002), Appl. Environ. Microbiol., 68, 4292-4300.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
3 truncated forms: Gh9, Gh9-Fn31,2, Gh9-Fn31,2-CBDIII Acetivibrio thermocellus

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ one mol of calcium per each domain Acetivibrio thermocellus

Organism

Organism UniProt Comment Textmining
Acetivibrio thermocellus Q59325
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-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-nitrophenyl cellobioside + H2O
-
Acetivibrio thermocellus 4-nitrophenol + cellobiose
-
?
4-nitrophenyl cellopentaoside + H2O
-
Acetivibrio thermocellus 4-nitrophenol + cellobiose + D-glucose
-
?
4-nitrophenyl cellotetraoside + H2O
-
Acetivibrio thermocellus cellobiose + 4-nitrophenyl cellobioside
-
?
4-nitrophenyl cellotrioside + H2O
-
Acetivibrio thermocellus 4-nitrophenol + cellobiose + D-glucose
-
?
cellopentaose + H2O
-
Acetivibrio thermocellus cellobiose + D-glucose
-
?
cellotetraose + H2O
-
Acetivibrio thermocellus 2 cellobiose
-
?
cellotriose + H2O
-
Acetivibrio thermocellus glucose + cellobiose
-
?
cellulose + H2O hydrolyzes Avicel and filter paper, efficiency of hydrolysis increases in the following order: Gh9, Gh9-Fn31,2, Gh9-Fn31,2-CBDIII Acetivibrio thermocellus cellobiose + cellohexaose
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
60
-
half-life of Gh9: 116 h, half-life of Gh9-Fn31,2: 97 h, half-life of Gh9-Fn31,2-CBDIII: 88.5 h Acetivibrio thermocellus