4AIR

Leishmania major cysteine synthase

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)	Cysteine synthase	polymer	354	37903.4	2	UniProt (Q4Q159) Pfam (PF00291)	Leishmania major
2	C (C)	FGA-FGA-FGA-FGA-FGA	polymer	5	663.6	1		Synthetic construct
3	D (D)	FGA-FGA-FGA-FGA	polymer	4	534.5	1		Synthetic construct
4	E, F (A, B)	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
5	G, H (A, B)	water	water		18.0	700	Chemie (HOH)

Sequence modifications

A, B: 1 - 333 (UniProt: Q4Q159)

PDB	External Database	Details
Met -20	-	initiating methionine
Gly -19	-	expression tag
Ser -18	-	expression tag
Ser -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
Ser -10	-	expression tag
Ser -9	-	expression tag
Gly -8	-	expression tag
Glu -7	-	expression tag
Asn -6	-	expression tag
Leu -5	-	expression tag
Tyr -4	-	expression tag
Phe -3	-	expression tag
Gln -2	-	expression tag
Gly -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	77004.9
Non-Polymers*	Number of molecules	2
	Total formula weight	70.9
All*	Total formula weight	77075.8

*Water molecules are not included.