dc66h04.x1 NICHD_XGC_Emb1 Xenopus laevis cDNA clone IMAGE:3402103 3' similar to gb:X55039_cds1 MAJOR CENTROMERE AUTOANTIGEN B (HUMAN); gb:M35032 Murine Ig germline membrane-bound gamma 2a-chain gene C region, exon (MOUSE), mRNA sequence