>sp|Q7LG56-3|RIR2B_HUMAN Isoform 3 of Ribonucleoside-diphosphate reductase subunit M2 B OS=Homo sapiens OX=9606 GN=RRM2B MGDPERPEAAGLDQDEGLHCDFACLMFQYLVNKPSEERVREIIVDAVKIEQEFLTEALPV GLIGMNCILMKQYIEFVADRLLVELGFSKVFQAENPFDFMENISLEGKTNFFEKRVSEYQ RFAVMAETTDNVFTLDADF