4F8N

X-ray structure of PsaA from Yersinia pestis, in complex with galactose and phosphate choline

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	pH 6 antigen	polymer	145	16249.1	1	UniProt (P31522) Pfam (PF21462)	Yersinia pestis	Adhesin, Antigen 4
2	B (A)	GUANIDINE	non-polymer		59.1	1	Chemie (GAI)
3	C (A)	PHOSPHOCHOLINE	non-polymer		184.2	1	Chemie (PC)
4	D (A)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
5	E (A)	beta-D-galactopyranose	non-polymer		180.2	1	Chemie (GAL)
6	F (A)	water	water		18.0	95	Chemie (HOH)

Sequence modifications

A: 2 - 115 (UniProt: P31522)

PDB	External Database	Details
Met 1	-	expression tag

A: 120 - 137 (UniProt: P31522)

PDB	External Database	Details
Asp 116	-	linker
Asn 117	-	linker
Lys 118	-	linker
Gln 119	-	linker
Leu 138	-	expression tag
Glu 139	-	expression tag
His 140	-	expression tag
His 141	-	expression tag
His 142	-	expression tag
His 143	-	expression tag
His 144	-	expression tag
His 145	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	16249.1
Non-Polymers*	Number of molecules	4
	Total formula weight	458.8
All*	Total formula weight	16707.9

*Water molecules are not included.