9ZK1

Crystal structure of a calcium bound C2 domain containing protein from Trichomonas vaginalis (P21 form)

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)	C2 domain containing protein	polymer	143	16382.9	4	UniProt (A2EZR3) Pfam (PF00168)	Trichomonas vaginalis G3
2	E (A)	TETRAETHYLENE GLYCOL	non-polymer		194.2	1	Chemie (PG4)
3	F, G, I, J, L... (A, B, C, D)	CALCIUM ION	non-polymer		40.1	10	Chemie (CA)
4	H (B)	2-(N-MORPHOLINO)-ETHANESULFONIC ACID	non-polymer		195.2	1	Chemie (MES)
5	K (C)	PENTAETHYLENE GLYCOL	non-polymer		238.3	1	Chemie (1PE)
6	R, S, T, U (A, B, C, D)	water	water		18.0	495	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 135 (UniProt: A2EZR3)

PDB	External Database	Details
Met -7	-	initiating methionine
Ala -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	65531.7
Non-Polymers*	Number of molecules	13
	Total formula weight	1028.5
All*	Total formula weight	66560.2

*Water molecules are not included.