6JRQ

Crystal structure of adenylosuccinate synthetase, PurA, from Thermus thermophilus

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)	Adenylosuccinate synthetase	polymer	408	44947.1	4	UniProt (Q5SLS1) Pfam (PF00709)	Thermus thermophilus HB8	AdSS,IMP--aspartate ligase
2	E, J, M, P (A, B, C, D)	INOSINIC ACID	non-polymer		348.2	4	Chemie (IMP)
3	F, G, H, I, K... (A, B, C, D)	1,2-ETHANEDIOL	non-polymer		62.1	10	Chemie (EDO)
4	S, T, U, V (A, B, C, D)	water	water		18.0	569	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	179788.3
Non-Polymers*	Number of molecules	14
	Total formula weight	2013.5
All*	Total formula weight	181801.8

*Water molecules are not included.