>sp|Q1RFF2|PPNP_ECOUT Pyrimidine/purine nucleoside phosphorylase OS=Escherichia coli GN=ppnP MLQSNEYFSGKVKSIGFSSSSTGRASVGVMVEGEYTFSTAEPEEMTVISGALNVLLPDAT DWQVYEAGSVFNVPGHSEFHLQVAEPTSYLCRYL