>gi|84875539 phosphoribosyl pyrophosphate synthetase 2 isoform 1 [Homo sapiens] MPNIVLFSGSSHQDLSQRVADRLGLELGKVVTKKFSNQETSVEIGESVRG EDVYIIQSGCGEINDNLMELLIMINACKIASSSRVTAVIPCFPYARQDKK DKVGESRAPISAKLVANMLSVAGADHIITMDLHASQIQGFFDIPVDNLYA EPAVLQWIRENIAEWKNCIIVSPDAGGAKRVTSIADRLNVEFALIHKERK KANEVDRMVLVGDVKDRVAILVDDMADTCGTICHAADKLLSAGATKVYAI LTHGIFSGPAISRINNAAFEAVVVTNTIPQEDKMKHCTKIQVIDISMILA EAIRRTHNGESVSYLFSHVPL