4NU8

Crystal structure of O-acetylserine sulfhydrylase from Haemophilus influenzae in complex with high affinity inhibitory peptide from serine acetyl transferase of Salmonella typhimurium at 2.0 A

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	X	Cysteine synthase	polymer	322	34480.4	1	UniProt (P45040) Pfam (PF00291) In PDB	Haemophilus influenzae	CSase, O-acetylserine (thiol)-lyase, OAS-TL, O-acetylserine sulfhydrylase
2	A	Peptide from Serine acetyltransferase	polymer	8	900.9	1	UniProt (Q8Z2E9) UniProt (by SIFTS) (P29847) In PDB	Salmonella enterica
3	X	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
4		water	water		18.0	81	Chemie (HOH)

Sequence modifications

X: 1 - 316 (UniProt: P45040)

PDB	External Database	Details
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	2
	Total formula weight	35381.3
Non-Polymers*	Number of molecules	1
	Total formula weight	92.1
All*	Total formula weight	35473.4

*Water molecules are not included.