6GBH

Helicobacter pylori adhesin HopQ type II bound to the N-terminal domain of human CEACAM1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B, D	Carcinoembryonic antigen-related cell adhesion molecule 1	polymer	115	12956.4	2	UniProt (P13688) Pfam (PF07686) In PDB	Homo sapiens (Human)	Biliary glycoprotein 1,BGP-1
2	C, A	HopQ	polymer	425	45239.5	2	UniProt (Q8GDI6) Pfam (PF18304) In PDB	Helicobacter pylori (Campylobacter pylori)
3	B, D, C, A	SULFATE ION	non-polymer		96.1	8	Chemie (SO4)
4		water	water		18.0	6	Chemie (HOH)

Sequence modifications

B, D: 1 - 108 (UniProt: P13688)

PDB	External Database	Details
Met 0	-	initiating methionine
His 109	-	expression tag
His 110	-	expression tag
His 111	-	expression tag
His 112	-	expression tag
His 113	-	expression tag
His 114	-	expression tag

C, A: 17 - 434 (UniProt: Q8GDI6)

PDB	External Database	Details
Met 16	-	initiating methionine
His 435	-	expression tag
His 436	-	expression tag
His 437	-	expression tag
His 438	-	expression tag
His 439	-	expression tag
His 440	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	116391.8
Non-Polymers*	Number of molecules	8
	Total formula weight	768.5
All*	Total formula weight	117160.3

*Water molecules are not included.