Entry
Name
kappa-carrageenase;
kappa-carrageenan 4-beta-D-glycanohydrolase
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy
Sysname
kappa-carrageenan 4-beta-D-glycanohydrolase (configuration-retaining)
Reaction(IUBMB)
Endohydrolysis of (1->4)-beta-D-linkages between D-galactose 4-sulfate and 3,6-anhydro-D-galactose in kappa-carrageenans
Comment
The main products of hydrolysis are neocarrabiose-sulfate and neocarratetraose-sulfate [5]. Unlike EC
3.2.1.157 (iota-carrageenase), but similar to EC
3.2.1.81 (beta-agarase), this enzyme proceeds with retention of the anomeric configuration.
History
EC 3.2.1.83 created 1972, modified 2006
Orthology
Genes
VAS : GT360_19020 GT360_19045
Taxonomy
Reference
Authors
Weigl J, Yaphe W.
Title
The enzymic hydrolysis of carrageenan by Pseudomonas carrageenovora: purification of a kappa-carrageenase.
Journal
Reference
Authors
Potin P, Sanseau A, Le Gall Y, Rochas C, Kloareg B.
Title
Purification and characterization of a new kappa-carrageenase from a marine Cytophaga-like bacterium.
Journal
Reference
Authors
Potin P, Richard C, Barbeyron T, Henrissat B, Gey C, Petillot Y, Forest E, Dideberg O, Rochas C, Kloareg B.
Title
Processing and hydrolytic mechanism of the cgkA-encoded kappa-carrageenase of Alteromonas carrageenovora.
Journal
Reference
Authors
Michel G, Barbeyron T, Flament D, Vernet T, Kloareg B, Dideberg O.
Title
Expression, purification, crystallization and preliminary x-ray analysis of the kappa-carrageenase from Pseudoalteromonas carrageenovora.
Journal
Reference
Authors
Michel G, Chantalat L, Duee E, Barbeyron T, Henrissat B, Kloareg B, Dideberg O
Title
The kappa-carrageenase of P. carrageenovora features a tunnel-shaped active site: a novel insight in the evolution of Clan-B glycoside hydrolases.
Journal
Sequence
Other DBs
ExplorEnz - The Enzyme Database: 3.2.1.83
ExPASy - ENZYME nomenclature database: 3.2.1.83