4PXQ

Crystal structure of D-glucuronyl C5-epimerase in complex with heparin hexasaccharide

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	D-glucuronyl C5 epimerase B	polymer	585	66136.2	2	UniProt (Q6TS32) Pfam (PF21174) Pfam (PF06662) UniProt (by SIFTS) (F1QR43)	Danio rerio (leopard danio zebra danio zebra fish)
2	C, D (C, D)	4-deoxy-2-O-sulfo-alpha-L-threo-hex-4-enopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose	branched		1732.4	2	In PDB GlyTouCan (G26920WX)
3	E, F (A, B)	water	water		18.0	813	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	132272.4
Branched	Number of molecules	2
	Total formula weight	3464.8
All*	Total formula weight	135737.2

*Water molecules are not included.