5IFK

Purine nucleoside phosphorylase

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	polymer	312	34236.9	3	UniProt (Q6CSZ6) Pfam (PF01048)	Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37) (Yeast)	Inosine-guanosine phosphorylase
2	D, E, F (A, B, C)	HYPOXANTHINE	non-polymer		136.1	3	Chemie (HPA)
3	G, H, I (A, B, C)	water	water		18.0	626	Chemie (HOH)

Sequence modifications

A, B, C: 1 - 306 (UniProt: Q6CSZ6)

PDB	External Database	Details
His 307	-	expression tag
His 308	-	expression tag
His 309	-	expression tag
His 310	-	expression tag
His 311	-	expression tag
His 312	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	102710.8
Non-Polymers*	Number of molecules	3
	Total formula weight	408.3
All*	Total formula weight	103119.1

*Water molecules are not included.