dc39h03.y1 NICHD_XGC_Emb3 Xenopus laevis cDNA clone IMAGE:3399509 5' similar to gb:X07696 KERATIN, TYPE I CYTOSKELETAL 15 (HUMAN); gb:X03492 Mouse mRNA for type I 47 kd keratin (MOUSE); gb:gb|M11940.1|XELKERCB Xenopus laevis gastrula stage epidermal type (XENOPUS), mRNA sequence