6AVZ

Crystal structure of the HopQ-CEACAM3 WT complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (B)	HopQ	polymer	439	47027.6	1	UniProt (H6A3H4) Pfam (PF18304)	Helicobacter pylori
2	B (A)	Carcinoembryonic antigen-related cell adhesion molecule 3	polymer	109	12045.6	1	UniProt (P40198) Pfam (PF07686)	Homo sapiens (Human)	Carcinoembryonic antigen CGM1
3	C (E)	part of HopQ loop	polymer	3	273.3	1		Helicobacter pylori P12
4	D, E (B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
5	F, G, H (B, A, E)	water	water		18.0	63	Chemie (HOH)

Sequence modifications

B: 18 - 442 (UniProt: H6A3H4)

PDB	External Database	Details
Met 4	-	initiating methionine
Gly 5	-	expression tag
Ser 6	-	expression tag
Ser 7	-	expression tag
His 8	-	expression tag
His 9	-	expression tag
His 10	-	expression tag
His 11	-	expression tag
His 12	-	expression tag
His 13	-	expression tag
Ser 14	-	expression tag
Gln 15	-	expression tag
Asp 16	-	expression tag
Pro 17	-	expression tag

A: 0 - 107 (UniProt: P40198)

PDB	External Database	Details
Met -1	-	initiating methionine

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	59346.5
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	59426.7

*Water molecules are not included.