ut26d03.y1 Soares_thymus_2NbMT Mus musculus cDNA clone IMAGE:3328997 5' similar to gb:M31642 HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE (HUMAN); gb:J00423 mouse hypoxanthine phosphoribosyltransferase(hprt)mrna (MOUSE), mRNA sequence