EFNA1 GI:33359680 ephrin A1 isoform b precursor 1 meflwapllg lccslaaadr htvfwnssnp kfrnedytih vqlndyvdii 50 51 cphyedhsva daameqyily lveheeyqlc qpqskdqvrw qcnrpsakhg 100 101 peklsekfqr ftpftlgkef keghsyyyis hspqahdnpq ekrlaaddpe 150 151 vrvlhsighs aaprlfplaw tvlllpllll qtp