1VMK

Crystal structure of Purine nucleoside phosphorylase (TM1596) from Thermotoga maritima at 2.01 A resolution

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	purine nucleoside phosphorylase	polymer	277	30672.7	3	UniProt (Q9X1T2) Pfam (PF01048) In PDB	Thermotoga maritima
2	A, B, C	GUANINE	non-polymer		151.1	3	Chemie (GUN)
3	B	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4		water	water		18.0	338	Chemie (HOH)

Sequence modifications

A, B, C: 1 - 265 (UniProt: Q9X1T2)

PDB	External Database	Details
Met -11	-	expression tag
Gly -10	-	expression tag
Ser -9	-	expression tag
Asp -8	-	expression tag
Lys -7	-	expression tag
Ile -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	3
	Total formula weight	92018.0
Non-Polymers*	Number of molecules	4
	Total formula weight	477.7
All*	Total formula weight	92495.7

*Water molecules are not included.