4OFQ

Structure of the C-terminal domain of the Streptococcus pyogenes antigen I/II-family protein AspA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Putative cell surface protein	polymer	347	38949.7	2	UniProt (Q48S75) Pfam (PF17998) Pfam (PF16364) In PDB	Streptococcus pyogenes
2	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3		water	water		18.0	984	Chemie (HOH)

Sequence modifications

A, B: 971 - 1307 (UniProt: Q48S75)

PDB	External Database	Details
Met 961	-	expression tag
Lys 962	-	expression tag
His 963	-	expression tag
His 964	-	expression tag
His 965	-	expression tag
His 966	-	expression tag
His 967	-	expression tag
His 968	-	expression tag
Pro 969	-	expression tag
Met 970	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	77899.4
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	77979.5

*Water molecules are not included.