8QJQ

SmNuc1 nuclease from Stenotrophomonas maltophilia in complex with cytidine - 5' - monophosphate as an inhibitor.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	S1/P1 Nuclease	polymer	254	28354.8	2	UniProt (J7SYS2) Pfam (PF02265) UniProt (by SIFTS) (B2FSF8)	Stenotrophomonas maltophilia
2	C, D, E, U, V... (A, B)	ZINC ION	non-polymer		65.4	6	Chemie (ZN)
3	F, X (A, B)	CYTIDINE-5'-MONOPHOSPHATE	non-polymer		323.2	2	Chemie (C5P)
4	G, I (A)	GLYCEROL	non-polymer		92.1	2	Chemie (GOL)
5	H (A)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	1	Chemie (PEG)
6	AA, BA, CA, DA, EA... (B, A)	SULFATE ION	non-polymer		96.1	20	Chemie (SO4)
7	Y (B)	PENTAETHYLENE GLYCOL	non-polymer		238.3	1	Chemie (1PE)
8	IA (B)	PHOSPHATE ION	non-polymer		95.0	1	Chemie (PO4)
9	JA, KA (A, B)	water	water		18.0	418	Chemie (HOH)

Sequence modifications

A, B: 27 - 272 (UniProt: J7SYS2)

PDB	External Database	Details
Leu 273	-	expression tag
Glu 274	-	expression tag
His 275	-	expression tag
His 276	-	expression tag
His 277	-	expression tag
His 278	-	expression tag
His 279	-	expression tag
His 280	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56709.6
Non-Polymers*	Number of molecules	33
	Total formula weight	3583.7
All*	Total formula weight	60293.3

*Water molecules are not included.