6V3P

The BIgI domain of beta protein from S. agalactiae bound to CEACAM1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Carcinoembryonic antigen-related cell adhesion molecule 1	polymer	109	12101.4	2	UniProt (P13688) Pfam (PF07686) In PDB	Homo sapiens (Human)	Biliary glycoprotein 1,BGP-1
2	C, D	IgA FC receptor	polymer	126	14188.6	2	UniProt (P27951) In PDB	Streptococcus agalactiae	Beta antigen,B antigen
3	A, B, D	SULFATE ION	non-polymer		96.1	5	Chemie (SO4)
4	A	GLYCEROL	non-polymer		92.1	2	Chemie (GOL)
5		water	water		18.0	1	Chemie (HOH)

Sequence modifications

A, B: 0 - 107 (UniProt: P13688)

PDB	External Database	Details
Met -1	-	initiating methionine

C, D: 0 - 112 (UniProt: P27951)

PDB	External Database	Details
Leu 113	-	expression tag
Pro 114	-	expression tag
Ser 115	-	expression tag
Thr 116	-	expression tag
Gly 117	-	expression tag
Gly 118	-	expression tag
Ser 119	-	expression tag
His 120	-	expression tag
His 121	-	expression tag
His 122	-	expression tag
His 123	-	expression tag
His 124	-	expression tag
His 125	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	52580.1
Non-Polymers*	Number of molecules	7
	Total formula weight	664.5
All*	Total formula weight	53244.6

*Water molecules are not included.