G protein-coupled receptor 137 MESNLSGLVP AAGLVPALPP AVTLGLTAAY TTLYALLFFS VYAQLWLVLL YGHKRLSYQT VFLALCLLWA ALRTTLFSFY FRDTPRANRL GPLPFWLLYC CPVCLQFFTL TLMNLYFAQV VFKAKVKRRP EMSRGLLAVR GAFVGASLLF LLVNVLCAVL SHRRRAQPWA LLLVRVLVSD SLFVICALSL AACLCLVARR APSTSIYLEA KGTSVCQAAA MGGAMVLLYA SRACYNLTAL