G protein-coupled receptor 137 MASLPDMESN LSGLVPAAGL VPALPPAVTL GLTAAYTTLY ALLFFSVYAQ LWLVLLYGHK RLSYQTVFLA LCLLWAALRT TLFSFYFRDT PRANRLGPLP FWLLYCCPVC LQFFTLTLMN LYFAQVVFKA KVKRRPEMSR GLLAVRGAFV GASLLFLLVN VLCAVLSHRR RAQPWALLLV RVLVSDSLFV ICALSLAACL CLVARRAPST SIYLEAKGTS VCQAA