EFNA4 GI:33359686 ephrin A4 isoform b 1 mrllpllrtv lwaaflgspl rggsslrhvv ywnssnprll rgdavvelgl 50 51 ndyldivcph yegpgppegp etfalymvdw pgyescqaeg praykrwvcs 100 101 lpfghvqfse kiqrftpfsl gfeflpgety yyisvptpes sgqclrlqvs 150 151 vcckerrarv lprspggggi paactggans drqdgalmge irgsevtlag 200 201 acplitg