>tr|D6I6K0|D6I6K0_ECOLX Pyrimidine/purine nucleoside phosphorylase OS=Escherichia coli B185 GN=ppnP MLQSNEYFSGKVKSIGFSSSSTGRASVGVMVEGEYTFSTAEPEEMTVISGALNVLLPDAT DWQVYEAGSVFNVPGHSEFHLQVAEPTSYLCRYL