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Information on EC 3.2.1.157 - iota-carrageenase

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EC Tree
IUBMB Comments
The main products of hydrolysis are iota-neocarratetraose sulfate and iota-neocarrahexaose sulfate. iota-Neocarraoctaose is the shortest substrate oligomer that can be cleaved. Unlike EC 3.2.1.81, beta-agarase and EC 3.2.1.83, kappa-carrageenase, this enzyme proceeds with inversion of the anomeric configuration. iota-Carrageenan differs from kappa-carrageenan by possessing a sulfo group on O-2 of the 3,6-anhydro-D-galactose residues, in addition to that present in the kappa-compound on O-4 of the D-galactose residues.
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Word Map
The enzyme appears in viruses and cellular organisms
Reaction Schemes
4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhyd
Synonyms
iota-carrageenase, cgib_ce, cgi82a, cgia2, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhyd
show the reaction diagram
PATHWAY SOURCE
PATHWAYS
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