4K1C

VCX1 Calcium/Proton Exchanger

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Vacuolar calcium ion transporter	polymer	421	45625.1	2	UniProt (Q99385) Pfam (PF01699) In PDB	Saccharomyces cerevisiae (Baker's yeast)	High copy number undoes manganese protein 1, Manganese resistance 1 protein, Vacuolar Ca(2+)/H(+) exchanger
2	A, B	(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate	non-polymer		356.5	6	Chemie (OLC)
3	B, A	CALCIUM ION	non-polymer		40.1	9	Chemie (CA)
4	B, A	MANGANESE (II) ION	non-polymer		54.9	3	Chemie (MN)
5	B, A	IODIDE ION	non-polymer		126.9	11	Chemie (IOD)
6		water	water		18.0	63	Chemie (HOH)

Sequence modifications

A, B: 1 - 411 (UniProt: Q99385)

PDB	External Database	Details
Gly -4	-	expression tag
Pro -3	-	expression tag
Ser -2	-	expression tag
Ser -1	-	expression tag
Pro 0	-	expression tag
Gly 412	-	expression tag
Leu 413	-	expression tag
Val 414	-	expression tag
Pro 415	-	expression tag
Arg 416	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	91250.2
Non-Polymers*	Number of molecules	29
	Total formula weight	4060.7
All*	Total formula weight	95310.9

*Water molecules are not included.