6E3F

The structure of the C-terminal domains (C123) of Streptococcus intermedius antigen I/II (Pas)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Probable cell-surface antigen I/II	polymer	512	56969.2	1	UniProt (Q9KW51) Pfam (PF17998) Pfam (PF16364)	Streptococcus intermedius
2	B, C (A)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3	D (A)	water	water		18.0	73	Chemie (HOH)

Sequence modifications

A: 747 - 1241 (UniProt: Q9KW51)

PDB	External Database	Details
Met 745	-	initiating methionine
Ala 746	-	expression tag
Glu 1242	-	expression tag
Asn 1243	-	expression tag
Leu 1244	-	expression tag
Tyr 1245	-	expression tag
Phe 1246	-	expression tag
Gln 1247	-	expression tag
Gly 1248	-	expression tag
Leu 1249	-	expression tag
Glu 1250	-	expression tag
His 1251	-	expression tag
His 1252	-	expression tag
His 1253	-	expression tag
His 1254	-	expression tag
His 1255	-	expression tag
His 1256	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	56969.2
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	57049.3

*Water molecules are not included.