FXYD3 GI:209862809 FXYD domain containing ion transport regulator 3 isoform 3 1 mgrgysgalq arggleeple rglrgpsftq splhgaaaay lsaqrdaslp 50 51 vpgqrsdmqk vtlgllvfla gfpvldandl edknspfyyd whslqvggli 100 101 cagvlcamgi iivmsakckc kfgqksghhp getpplitpg saqs