Conserved Site

Nucleoside phosphorylase, conserved site (IPR018016)

Short name: Nucleoside_phosphorylase_CS


The following phosphorylases are in the same family:

  • Purine nucleoside phosphorylase (EC: (PNP) from most bacteria (gene deoD), which catalyses the cleavage of guanosine or inosine to respective bases and sugar-1-phosphate molecules [PMID: 8534998].
  • Uridine phosphorylase (EC: (UdRPase) from bacteria (gene udp) and mammals, which catalyses the cleavage of uridine into uracil and ribose-1-phosphate, the products of the reaction are used either as carbon and energy sources or in the rescue of pyrimidine bases for nucleotide synthesis [PMID: 7744869].
  • 5'-methylthioadenosine phosphorylase (EC: (MTA phosphorylase) from Sulfolobus solfataricus [PMID: 7929153].

It should be noted that mammalian and some bacterial PNP as well as eukaryotic MTA phosphorylase belong to a different family of phosphorylases.

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

GO:0016763 transferase activity, transferring pentosyl groups

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.
PROSITE patterns