ENZYME entry: EC 3.2.1.157
Accepted Name |
iota-carrageenase.
|
Reaction catalysed |
Endohydrolysis of 1,4-beta-D-linkages between D-galactose 4-sulfate and 3,6-anhydro-D-galactose-2-sulfate in iota-carrageenans |
Comment(s) |
- 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 and EC 3.2.1.83, 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.
|
Cross-references |
BRENDA | 3.2.1.157 |
EC2PDB | 3.2.1.157 |
ExplorEnz | 3.2.1.157 |
PRIAM enzyme-specific profiles | 3.2.1.157 |
KEGG Ligand Database for Enzyme Nomenclature | 3.2.1.157 |
IUBMB Enzyme Nomenclature | 3.2.1.157 |
IntEnz | 3.2.1.157 |
MEDLINE | Find literature relating to 3.2.1.157 |
MetaCyc | 3.2.1.157 |
Rhea expert-curated reactions | 3.2.1.157 |
UniProtKB/Swiss-Prot |
|
View entry in original ENZYME format
View entry in raw text format (no links)
All
ENZYME /
UniProtKB/Swiss-Prot entries corresponding to 3.2.1.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.2.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.-.-.-