9YSM

Human DCTPP1 bound to MPD

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)	dCTP pyrophosphatase 1	polymer	110	12686.4	4	UniProt (Q9H773) Pfam (PF12643)	Homo sapiens (human)	Deoxycytidine-triphosphatase 1,dCTPase 1,RS21C6,XTP3-transactivated gene A protein
2	E, F, G, H, J... (A, B, C, D)	(4S)-2-METHYL-2,4-PENTANEDIOL	non-polymer		118.2	11	Chemie (MPD) PubChem (5288834)
3	I, L, O, S (A, B, C, D)	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG) PubChem (888)
4	T, U, V, W (A, B, C, D)	water	water		18.0	294	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	50745.5
Non-Polymers*	Number of molecules	15
	Total formula weight	1397.1
All*	Total formula weight	52142.7

*Water molecules are not included.