CD44 GI:48255943 CD44 antigen isoform 5 precursor 1 mdkfwwhaaw glclvplsla qidlnitcrf agvfhvekng rysisrteaa 50 51 dlckafnstl ptmaqmekal sigfetcslh csqqskkvwa eekasdqqwq 100 101 wscggqkakw tqrrgqqvsg ngafgeqgvv rnsrpvyds