5OCQ

Crystal structure of the complex of the kappa-carrageenase from Pseudoalteromonas carrageenovora with an oligotetrasaccharide of kappa-carrageenan

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Kappa-carrageenase	polymer	285	32968.5	2	UniProt (P43478) Pfam (PF00722) In PDB	Pseudoalteromonas carrageenovora
2	A, B	3,6-anhydro-D-galactose	non-polymer		162.1	4	Chemie (9RN)
3	A, B	4-O-sulfo-beta-D-galactopyranose	non-polymer		260.2	4	Chemie (G4S)
4	A, B	CITRIC ACID	non-polymer		192.1	2	Chemie (CIT)
5		water	water		18.0	585	Chemie (HOH)

Sequence modifications

A, B: 26 - 301 (UniProt: P43478)

PDB	External Database	Details
Met 25	-	initiating methionine
Asp 168	Glu 168	engineered mutation
Leu 302	-	expression tag
Glu 303	-	expression tag
His 304	-	expression tag
His 305	-	expression tag
His 306	-	expression tag
His 307	-	expression tag
His 308	-	expression tag
His 309	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	65937.1
Non-Polymers*	Number of molecules	10
	Total formula weight	2073.7
All*	Total formula weight	68010.8

*Water molecules are not included.