EC - κ-carrageenase

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IntEnz Enzyme Nomenclature


Accepted name:
Other name:
κ-carrageenan 4-β-D-glycanohydrolase
Systematic name:
κ-carrageenan 4-β-D-glycanohydrolase (configuration-retaining)



The main products of hydrolysis are neocarrabiose-sulfate and neocarratetraose-sulfate [5]. Unlike EC (ι-carrageenase), but similar to EC (β-agarase), this enzyme proceeds with retention of the anomeric configuration.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , DIAGRAM , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Protein domains and families: PROSITE:PDOC00794
Structural data: CSA , EC2PDB
Gene Ontology: GO:0033918
CAS Registry Number: 37288-59-8


  1. Weigl, J. and Yashe, W.
    The enzymic hydrolysis of carrageenan by Pseudomonas carrageenovora: purification of a κ-carrageenase.
    Can. J. Microbiol. 12: 939-947 (1966). [PMID: 5972647]
  2. Potin, P., Sanseau, A., Le Gall, Y., Rochas, C. and Kloareg, B.
    Purification and characterization of a new κ-carrageenase from a marine Cytophaga-like bacterium.
    Eur. J. Biochem. 201: 241-247 (1991). [PMID: 1915370]
  3. Potin, P., Richard, C., Barbeyron, T., Henrissat, B., Gey, C., Petillot, Y., Forest, E., Dideberg, O., Rochas, C. and Kloareg, B.
    Processing and hydrolytic mechanism of the cgkA-encoded κ-carrageenase of Alteromonas carrageenovora.
    Eur. J. Biochem. 228: 971-975 (1995). [PMID: 7737202]
  4. Michel, G., Barbeyron, T., Flament, D., Vernet, T., Kloareg, B. and Dideberg, O.
    Expression, purification, crystallization and preliminary X-ray analysis of the κ-carrageenase from Pseudoalteromonas carrageenovora.
    Acta Crystallogr. D Biol. Crystallogr. 55: 918-920 (1999). [PMID: 10089334]
  5. Michel, G., Chantalat, L., Duee, E., Barbeyron, T., Henrissat, B., Kloareg, B. and Dideberg, O.
    The κ-carrageenase of P. carrageenovora features a tunnel-shaped active site: a novel insight in the evolution of Clan-B glycoside hydrolases.
    Structure 9: 513-525 (2001). [PMID: 11435116]

[EC created 1972, modified 2006]