4D99

Salmonella typhimurium D-Cysteine desulfhydrase with L-ser bound non-covalently at the active site

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)	D-cysteine desulfhydrase	polymer	342	36778.8	4	UniProt (Q8ZNT7) Pfam (PF00291)	Salmonella typhimurium
2	E, G, K (A, B, D)	BENZAMIDINE	non-polymer		120.2	3	Chemie (BEN)
3	F, H, J, L (A, B, C, D)	SERINE	non-polymer		105.1	4	Chemie (SER)
4	I (C)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
5	M, N, O, P (A, B, C, D)	water	water		18.0	594	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 328 (UniProt: Q8ZNT7)

PDB	External Database	Details
Met -13	-	expression tag
Arg -12	-	expression tag
Gly -11	-	expression tag
Ser -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
Gly -3	-	expression tag
Met -2	-	expression tag
Ala -1	-	expression tag
Ser 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	147115.4
Non-Polymers*	Number of molecules	8
	Total formula weight	803.8
All*	Total formula weight	147919.2

*Water molecules are not included.