9JZW

Crystal structure of E. coli AIR synthetase

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)	Phosphoribosylformylglycinamidine cyclo-ligase	polymer	345	36890.9	4	UniProt (P08178) Pfam (PF00586) Pfam (PF02769)	Escherichia coli K-12	AIR synthase,AIRS,Phosphoribosyl-aminoimidazole synthetase
2	E, F, G, H, I... (A, B, C, D)	SULFATE ION	non-polymer		96.1	9	Chemie (SO4)
3	N, O, P, Q (A, B, C, D)	water	water		18.0	567	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	147563.8
Non-Polymers*	Number of molecules	9
	Total formula weight	864.6
All*	Total formula weight	148428.3

*Water molecules are not included.