>gi|56788411 interleukin 4 receptor alpha chain isoform b precursor [Homo sapiens] MGWLCSGLLFPVSCLVLLQVASSGNMKVLQEPTCVSDYMSISTCEWKMNG PTNCSTELRLLYQLVFLLSEAHTCIPENNGGAGCVCHLLMDDVVSADNYT LDLWAGQQLLWKGSFKPSEHVKPRAPGNLTVHTNVSDTLLLTWSNPYPPD NYLYNHLTYAVNIWSENDPADFRIYNVTYLEPSLRIAASTLKSGISYRAR VRAWAQCYNTTWSEWSPSTKWHNSNIC