2.4.1.280: N,N'-diacetylchitobiose phosphorylase
This is an abbreviated version!
For detailed information about N,N'-diacetylchitobiose phosphorylase, go to the full flat file.
Word Map on EC 2.4.1.280
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2.4.1.280
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glycoside
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phosphorolysis
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1-phosphate
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anomeric
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alpha-d-glucose
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cellodextrin
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proteolyticus
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maltose
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clan
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barrel
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oligosaccharide
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vibrio
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glucoamylase
- 2.4.1.280
- glycoside
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phosphorolysis
- 1-phosphate
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anomeric
- alpha-d-glucose
- cellodextrin
- proteolyticus
- maltose
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clan
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barrel
- oligosaccharide
- vibrio
- glucoamylase
Reaction
Synonyms
chbP, chitobiose phosphorylase
ECTree
2.4.1.280 N,N'-diacetylchitobiose phosphorylaseAdvanced search results
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results (Substrates Products
Substrates Products on EC 2.4.1.280 - N,N'-diacetylchitobiose phosphorylase
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SUBSTRATE 
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
4-nitrophenyl N,N'-diacetylchitobioside + phosphate
N-acetyl-alpha-D-glucosamine 1-phosphate + 4-nitrophenyl N-acetyl-D-glucosaminide
reaction at 8.5% the rate of N,N'-diacetylchitobiose
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-
r
N,N'-diacetylchitobiose + phosphate
N-acetyl-D-glucosamine + N-acetyl-alpha-D-glucosamine 1-phosphate
N-acetyl-alpha-D-glucosamine 1-phosphate + 4-methylumbelliferyl N-acetyl-beta-D-glucosaminide
4-methylumbelliferyl N,N'-diacetylchitobioside + phosphate
reverse phosphorolysis, reaction at 20% the rate of N-acetyl-D-glucosamine
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r
N-acetyl-alpha-D-glucosamine 1-phosphate + 4-nitrophenyl N-acetyl-beta-D-glucosaminide
4-nitrophenyl N,N'-diacetylchitobioside + phosphate
N-acetyl-D-glucosamine + N-acetyl-alpha-D-glucosamine 1-phosphate
N,N'-diacetylchitobiose + phosphate
N,N'-diacetylchitobiose + phosphate
N-acetyl-D-glucosamine + N-acetyl-alpha-D-glucosamine 1-phosphate
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inversion of the anomeric configuration
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r
N,N'-diacetylchitobiose + phosphate
N-acetyl-D-glucosamine + N-acetyl-alpha-D-glucosamine 1-phosphate
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-
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r
N,N'-diacetylchitobiose + phosphate
N-acetyl-D-glucosamine + N-acetyl-alpha-D-glucosamine 1-phosphate
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-
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r
N,N'-diacetylchitobiose + phosphate
N-acetyl-D-glucosamine + N-acetyl-alpha-D-glucosamine 1-phosphate
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inversion of the anomeric configuration
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r
N,N'-diacetylchitobiose + phosphate
N-acetyl-D-glucosamine + N-acetyl-alpha-D-glucosamine 1-phosphate
the enzymatic phosphorolysis of ChBP begins with the direct nucleophilic attack to the glycosidic bond with the aid of D492, which donates a proton to the glycosidic oxygen atom, and then proceeds through an oxocarbenium cation activated by ion-like transition state
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r
N-acetyl-alpha-D-glucosamine 1-phosphate + 4-nitrophenyl N-acetyl-beta-D-glucosaminide
4-nitrophenyl N,N'-diacetylchitobioside + phosphate
reverse phosphorolysis, reaction at 36% the rate of N-acetyl-D-glucosamine
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r
N-acetyl-alpha-D-glucosamine 1-phosphate + 4-nitrophenyl N-acetyl-beta-D-glucosaminide
4-nitrophenyl N,N'-diacetylchitobioside + phosphate
reverse phosphorolysis, reaction at 10% the rate of N-acetyl-D-glucosamine
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r
N-acetyl-D-glucosamine + N-acetyl-alpha-D-glucosamine 1-phosphate
N,N'-diacetylchitobiose + phosphate
reverse phosphorolysis reaction
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r
N-acetyl-D-glucosamine + N-acetyl-alpha-D-glucosamine 1-phosphate
N,N'-diacetylchitobiose + phosphate
reverse phosphorolysis reaction
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r
additional information
?
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no substrates are N-acetylchitooligosaccharides, cellobiose, trehalose, lactose, maltose or sucrose
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?
additional information
?
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no substrates are N-acetylchitooligosaccharides
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?
additional information
?
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no substrates are N-acetylchitooligosaccharides
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-
?
