3BJE

Crystal structure of Trypanosoma brucei nucleoside phosphorylase shows uridine phosphorylase activity

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Nucleoside phosphorylase, putative	polymer	349	38004.2	2	UniProt (Q57VZ2) Pfam (PF01048)	Trypanosoma brucei
2	C, E (A, B)	1-O-phosphono-alpha-D-ribofuranose	non-polymer		230.1	2	Chemie (R1P)
3	D, F (A, B)	URACIL	non-polymer		112.1	2	Chemie (URA)
4	G (B)	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
5	H, I (A, B)	water	water		18.0	501	Chemie (HOH)

Sequence modifications

A, B: 1 - 341 (UniProt: Q57VZ2)

PDB	External Database	Details
Met -7	-	expression tag
Ala -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	76008.5
Non-Polymers*	Number of molecules	5
	Total formula weight	724.5
All*	Total formula weight	76732.9

*Water molecules are not included.