6XL8

Crystal structure of 3-O-Sulfotransferase isoform 3 in complex with 8mer oligosaccharide with no 6S sulfation

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)	Heparan sulfate glucosamine 3-O-sulfotransferase 3A1	polymer	273	31216.0	2	UniProt (Q9Y663) Pfam (PF00685)	Homo sapiens (Human)	Heparan sulfate D-glucosaminyl 3-O-sulfotransferase 3A1,h3-OST-3A
2	C (C)	beta-D-glucopyranuronic acid-(1-4)-2-deoxy-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-2-(sulfoamino)-alpha-D-glucopyranose	branched		1430.2	1	In PDB GlyTouCan (G85866ZV)
3	D (D)	beta-D-glucopyranuronic acid-(1-4)-2-deoxy-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-beta-D-glucopyranuronic acid	branched		1606.3	1	In PDB GlyTouCan (G14932EO)
4	E, J (A, B)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
5	F, L (A, B)	ADENOSINE-3'-5'-DIPHOSPHATE	non-polymer		427.2	2	Chemie (A3P)
6	G, H, I, M, N... (A, B)	IODIDE ION	non-polymer		126.9	9	Chemie (IOD)
7	K (B)	P-NITROPHENOL	non-polymer		139.1	1	Chemie (NPO)
8	S, T (A, B)	water	water		18.0	71	Chemie (HOH)

Sequence modifications

A, B: 139 - 406 (UniProt: Q9Y663)

PDB	External Database	Details
Gly 134	-	expression tag
Ser 135	-	expression tag
Pro 136	-	expression tag
Asn 137	-	expression tag
Ser 138	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	62431.9
Branched	Number of molecules	2
	Total formula weight	3036.5
Non-Polymers*	Number of molecules	14
	Total formula weight	2181.6
All*	Total formula weight	67650.0

*Water molecules are not included.