4.2.2.12: xanthan lyase
This is an abbreviated version!
For detailed information about xanthan lyase, go to the full flat file.
Word Map on EC 4.2.2.12
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4.2.2.12
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polysaccharide
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pyruvylated
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paenibacillus
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heteropolysaccharide
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lyases
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depolymerization
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beta-elimination
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unsaturated
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exolytically
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pentasaccharide
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alginolyticus
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glucuronyl
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hashimoto
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subsite
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trisaccharide
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mannose-specific
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microbiol
- 4.2.2.12
- polysaccharide
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pyruvylated
- paenibacillus
- heteropolysaccharide
- lyases
-
depolymerization
-
beta-elimination
- unsaturated
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exolytically
- pentasaccharide
- alginolyticus
-
glucuronyl
-
hashimoto
-
subsite
- trisaccharide
-
mannose-specific
-
microbiol
Reaction
Synonyms
lyase, xanthan, xanthan lyase
ECTree
4.2.2.12 xanthan lyaseAdvanced search results
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results (Substrates Products
Substrates Products on EC 4.2.2.12 - xanthan lyase
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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
additional information
?
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no substrate: p-nitrophenyl-beta-D-mannose, unsubstituted terminal beta-D-mannose residues of xanthan
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?
pyruvylated xanthan
pyruvylate mannose + oligosaccharides
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best substrate
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?
pyruvylated xanthan
pyruvylate mannose + oligosaccharides
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best substrate
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?
pyruvylated xanthan
pyruvylate mannose + xanthan oligosaccharides
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enzyme is specific on the pyruvated mannosyl residue in the intact xanthan molecule, but about 50% lyase activity remains when xanthan is partially depyruvated
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?
pyruvylated xanthan
pyruvylate mannose + xanthan oligosaccharides
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enzyme is specific on the pyruvated mannosyl residue in the intact xanthan molecule, but about 50% lyase activity remains when xanthan is partially depyruvated
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?
xanthan
oligosaccharides
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enzyme is active on polysaccharides with and without acetate and pyruvate, the optimal size of the substrate appears to be in the range of degree of polymerization (DP) 25-35, i.e. 5-7 repeat units of the polysaccharide, no activity against xanthan modified by reduction of the carbonyl groups or by addition of amine or hydroxylethyl groups
the combined action of lyase and endoglucanase yields a series of oligosaccharides, each with a side-chain terminating in an unsaturated uronic acid and containing the molar ratio of D-glucose to D-mannose 2:1
?
xanthan
oligosaccharides
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enzyme is active on polysaccharides with and without acetate and pyruvate, the optimal size of the substrate appears to be in the range of degree of polymerization (DP) 25-35, i.e. 5-7 repeat units of the polysaccharide, no activity against xanthan modified by reduction of the carbonyl groups or by addition of amine or hydroxylethyl groups
the combined action of lyase and endoglucanase yields a series of oligosaccharides, each with a side-chain terminating in an unsaturated uronic acid and containing the molar ratio of D-glucose to D-mannose 2:1
?
