3U40

Crystal structure of a purine nucleoside phosphorylase from Entamoeba histolytica bound to adenosine

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...	Purine nucleoside phosphorylase	polymer	242	26597.5	6	UniProt (C4LXG4) Pfam (PF01048) In PDB	Entamoeba histolytica	PNPase
2	A, B, C, D, E...	ADENOSINE	non-polymer		267.2	6	Chemie (ADN)
3	A, B, C, D, E...	NITRATE ION	non-polymer		62.0	7	Chemie (NO3)
4	D	PHOSPHATE ION	non-polymer		95.0	1	Chemie (PO4)
5		water	water		18.0	570	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F: 1 - 238 (UniProt: C4LXG4)

PDB	External Database	Details
Gly -3	-	expression tag
Pro -2	-	expression tag
Gly -1	-	expression tag
Ser 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	159585.2
Non-Polymers*	Number of molecules	14
	Total formula weight	2132.5
All*	Total formula weight	161717.7

*Water molecules are not included.