>gi|111118959 sorting nexin 21 isoform c [Homo sapiens] MHRGTQEGAMASRLLHRLRHALAGDGPGEAAASPEAEQFPESSELEDDDA EGLSSRLSGTLSFTSAEDDEDDEDEDDEEAGPDQLPLGDGTSGEDAERSP PPDGQWGSQLLARQLQDFWKKSRNTLAPQRLLFEVTSANVVKDPPSNSTP SP