>sp|P0C040|PPNP_SHIFL Pyrimidine/purine nucleoside phosphorylase OS=Shigella flexneri GN=ppnP MLQSNEYFSGKVKSIGFSSSSTGRASVGVMVEGEYTFSTAEPEEMTVISGALNVLLPDAT DWQVYEAGSVFNVPGHSEFHLQVAEPTSYLCRYL