3C1V

The 1.5 A Crystal structure of Ca2+-bound S100A4

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	Protein S100-A4	polymer	113	13151.1	4	UniProt (P26447) Pfam (PF01023)	Homo sapiens (Human)	S100 calcium-binding protein A4, Metastasin, Protein Mts1, Placental calcium-binding protein, Calvasculin
2	E, F, G, H, I... (A, B, C, D)	CALCIUM ION	non-polymer		40.1	8	Chemie (CA)
3	M, N, O, P (A, B, C, D)	water	water		18.0	552	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 101 (UniProt: P26447)

PDB	External Database	Details
Met -11	-	expression tag
Arg -10	-	expression tag
Gly -9	-	expression tag
Ser -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
Gly -1	-	expression tag
Ser 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	52604.3
Non-Polymers*	Number of molecules	8
	Total formula weight	320.6
All*	Total formula weight	52924.9

*Water molecules are not included.