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EC 2.4.2.1 Details
EC number
2.4.2.1
Accepted name
purine-nucleoside phosphorylase
Reaction
(1) purine ribonucleoside + phosphate = purine + α-D-ribose 1-phosphate;;(2) purine 2′-deoxyribonucleoside + phosphate = purine + 2-deoxy-α-D-ribose 1-phosphate
Other name(s)
inosine phosphorylase,
PNPase (ambiguous),
PUNPI,
PUNPII,
inosine-guanosine phosphorylase,
purine deoxynucleoside phosphorylase,
purine deoxyribonucleoside phosphorylase,
purine nucleoside phosphorylase,
purine ribonucleoside phosphorylase
Systematic name
purine-nucleoside:phosphate ribosyltransferase
CAS registry number
9030-21-1
Comment
Specificity not completely determined. Can also catalyse ribosyltransferase reactions of the type catalysed by EC 2.4.2.5, nucleoside ribosyltransferase.
History
created 1961
EC Tree
2.4.2.13 created 1961, deleted 1965