3UT6

Crystal structure of E. Coli PNP complexed with PO4 and formycin A

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 (A, B, C)	Purine nucleoside phosphorylase deoD-type	polymer	237	25721.6	3	UniProt (P0ABP8) Pfam (PF01048)	Escherichia coli	PNP, Inosine phosphorylase
2	D, F, I (A, B, C)	(1S)-1-(7-amino-1H-pyrazolo[4,3-d]pyrimidin-3-yl)-1,4-anhydro-D-ribitol	non-polymer		267.2	3	Chemie (FMC)
3	E, G, H, J, K (A, B, C)	PHOSPHATE ION	non-polymer		95.0	5	Chemie (PO4)
4	L, M, N (A, B, C)	water	water		18.0	623	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	77164.9
Non-Polymers*	Number of molecules	8
	Total formula weight	1276.6
All*	Total formula weight	78441.5

*Water molecules are not included.