1K9S

PURINE NUCLEOSIDE PHOSPHORYLASE FROM E. COLI IN COMPLEX WITH FORMYCIN A DERIVATIVE AND PHOSPHATE

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, E... (A, B, C, D, E...)	PURINE NUCLEOSIDE PHOSPHORYLASE	polymer	237	25721.6	6	UniProt (P0ABP8) Pfam (PF01048)	Escherichia coli
2	G, I, K, M, O... (A, B, C, D, E...)	PHOSPHATE ION	non-polymer		95.0	6	Chemie (PO4)
3	H, J, L (A, B, C)	2-(7-AMINO-6-METHYL-3H-PYRAZOLO[4,3-D]PYRIMIDIN-3-YL)-5-HYDROXYMETHYL-TETRAHYDRO-FURAN-3,4-DIOL	non-polymer		282.3	3	Chemie (FM2)
4	N, P, R (D, E, F)	2-HYDROXYMETHYL-5-(7-METHYLAMINO-3H-PYRAZOLO[4,3-D]PYRIMIDIN-3-YL)-TETRAHYDRO-FURAN-3,4-DIOL	non-polymer		281.3	3	Chemie (FM1)
5	S, T, U, V, W... (A, B, C, D, E...)	water	water		18.0	1238	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	154329.8
Non-Polymers*	Number of molecules	12
	Total formula weight	2260.5
All*	Total formula weight	156590.3

*Water molecules are not included.