K04129  CHRM1; muscarinic acetylcholine receptor M1
       K04130  CHRM2; muscarinic acetylcholine receptor M2
       K04131  CHRM3; muscarinic acetylcholine receptor M3
       K04132  CHRM4; muscarinic acetylcholine receptor M4
       K04133  CHRM5; muscarinic acetylcholine receptor M5
       K04134  CHRMN; muscarinic acetylcholine receptor
       K04135  ADRA1A; adrenergic receptor alpha-1A
       K04136  ADRA1B; adrenergic receptor alpha-1B
       K04137  ADRA1D; adrenergic receptor alpha-1D
       K04138  ADRA2A; adrenergic receptor alpha-2A
       K04139  ADRA2B; adrenergic receptor alpha-2B
       K04140  ADRA2C; adrenergic receptor alpha-2C
       K04141  ADRB1; adrenergic receptor beta-1
       K04142  ADRB2; adrenergic receptor beta-2
       K04143  ADRB3; adrenergic receptor beta-3
       K04144  DRD1; dopamine receptor D1
       K04145  DRD2; dopamine receptor D2
       K04146  DRD3; dopamine receptor D3
       K04147  DRD4; dopamine receptor D4
       K05840  DRD5; dopamine receptor D5
       K04148  DRD1N; dopamine receptor D1-like
       K22919  DopEcR; dopamine/ecdysteroid receptor
       K04149  HRH1; histamine receptor H1
       K04150  HRH2; histamine receptor H2
       K04151  HRH3; histamine receptor H3
       K04152  HRH4; histamine receptor H4
       K04165  Oamb; octopamine receptor
       K22814  Octalpha; octopamine receptor alpha
       K22790  Octbeta; octopamine receptor beta
       K22791  TyrR; tyramine receptor
       K22815  Oct-TyrR; octopamine/tyramine receptor
       K04153  HTR1; 5-hydroxytryptamine receptor 1
       K04157  HTR2; 5-hydroxytryptamine receptor 2
       K04160  HTR4; 5-hydroxytryptamine receptor 4
       K04161  HTR5; 5-hydroxytryptamine receptor 5
       K04162  HTR6; 5-hydroxytryptamine receptor 6
       K04163  HTR7; 5-hydroxytryptamine receptor 7
       K05051  TAAR; trace amine associated receptor
       K04242  ADMR; adrenomedullin receptor
       K04316  GPR19; G protein-coupled receptor 19
       K04174  APLNR; apelin receptor
       K04009  C3AR1; C3a anaphylatoxin chemotactic receptor
       K04010  C5AR1, CD88; C5a anaphylatoxin chemotactic receptor 1
       K04171  C5AR2, GPR77; C5a anaphylatoxin chemotactic receptor 2
       K04166  AGTR1; angiotensin II receptor type 1
       K04167  AGTR2; angiotensin II receptor type 2
       K08441  GPR171; G protein-coupled receptor 171
       K04168  NMBR; neuromedin B receptor
       K04169  GRPR; gastrin-releasing peptide receptor
       K04170  BRS3; bombesin receptor subtype-3
       K03915  BDKRB1; bradykinin receptor B1
       K03916  BDKRB2; bradykinin receptor B2
       K04194  CCKAR; cholecystokinin A receptor
       K04195  CCKBR; cholecystokinin B receptor
       K04196  CCKLR; cholecystokinin-like receptor
       K04197  EDNRA; endothelin receptor type A
       K04198  EDNRB; endothelin receptor type B
       K04172  FPR1; formyl peptide receptor 1
       K04173  FPRL; formyl peptide receptor-like
       K04247  FSHR; follicle stimulating hormone receptor
       K04230  GALR1; galanin receptor 1
       K04231  GALR2; galanin receptor 2
       K04232  GALR3; galanin receptor 3
       K08374  KISS1R; KISS1 receptor
       K04233  ASTA-R; allatostatin A receptor
       K04284  GHSR; growth hormone secretagogue receptor
       K04280  GNRHR; gonadotropin-releasing hormone receptor
       K04300  SREB3, GPR173; super conserved receptor expressed in brain 3
       K04248  LHCGR; lutropin-choriogonadotropic hormone receptor
       K04320  MCHR1; melanin-concentrating hormone receptor 1
       K05054  MCHR2; melanin-concentrating hormone receptor 2
       K04199  MC1R; melanocortin 1 receptor
       K04200  MC2R; melanocortin 2 receptor
       K04201  MC3R; melanocortin 3 receptor
       K04202  MC4R; melanocortin 4 receptor
       K04203  MC5R; melanocortin 5 receptor
       K05266  MLNR; motilin receptor
       K05052  NMUR1; neuromedin U receptor 1
       K05053  NMUR2; neuromedin U receptor 2
       K04240  NPFFR1; neuropeptide FF receptor 1
       K08375  NPFFR2; neuropeptide FF receptor 2
       K08376  NPSR1, GPR154; neuropeptide S receptor
       K05268  NPBWR1; neuropeptides B/W receptor 1
       K08377  NPBWR2; neuropeptides B/W receptor 2
       K04204  NPY1R; neuropeptide Y receptor type 1
       K04205  NPY2R; neuropeptide Y receptor type 2
       K04206  NPY4R; neuropeptide Y receptor type 4
       K04207  NPY5R; neuropeptide Y receptor type 5
       K04208  NPY6R; neuropeptide Y receptor type 6
       K04210  GPR83, GPR72; G protein-coupled receptor 83
       K04209  NPFR; neuropeptide F receptor
       K04211  NTSR1; neurotensin receptor 1
       K04212  NTSR2; neurotensin receptor 2
       K04213  OPRD1; delta-type opioid receptor
       K04214  OPRK1; kappa-type opioid receptor
       K04215  OPRM1; mu-type opioid receptor
       K04216  OPRL1; nociceptin receptor
       K08378  QRFPR, GPR103; pyroglutamylated RFamide peptide receptor
       K04238  HCRTR1; hypocretin (orexin) receptor 1
       K04239  HCRTR2; hypocretin (orexin) receptor 2
       K04229  OXTR; oxytocin receptor
       K08379  PROKR1; prokineticin receptor 1
       K08380  PROKR2; prokineticin receptor 2
       K04314  PRLHR, GPR10; prolactin releasing hormone receptor
       K04243  GPR37; prosaposin receptor
       K04244  GPR37L1, ETBRLP2; prosaposin receptor
       K04306  RXFP1, LGR7; relaxin family peptide receptor 1
       K04307  RXFP2, LGR8; relaxin family peptide receptor 2
       K08397  RXFP3, RLN3R1; relaxin family peptide receptor 3
       K08398  RXFP4, RLN3R2; relaxin family peptide receptor 4
       K04217  SSTR1; somatostatin receptor 1
       K04218  SSTR2; somatostatin receptor 2
       K04219  SSTR3; somatostatin receptor 3
       K04220  SSTR4; somatostatin receptor 4
       K04221  SSTR5; somatostatin receptor 5
       K22872  ASTC-R; allatostatin C receptor
       K04222  TACR1; tachykinin receptor 1
       K04223  TACR2; tachykinin receptor 2
       K04224  TACR3; tachykinin receptor 3
       K14071  LKR; leucokinin receptor
       K14072  Rya-R, NEPYR; RYamide receptor
       K03914  F2R, PAR1; coagulation factor II (thrombin) receptor
       K04234  F2RL1, PAR2; coagulation factor II (thrombin) receptor-like 1
       K04235  F2RL2, PAR3; coagulation factor II (thrombin) receptor-like 2
       K04236  F2RL3, PAR4; coagulation factor II (thrombin) receptor-like 3
       K04249  TSHR; thyrotropin receptor
       K04282  TRHR; thyrotropin-releasing hormone receptor
       K04241  UTS2R; urotensin 2 receptor
       K04226  AVPR1A; arginine vasopressin receptor 1A
       K04227  AVPR1B; arginine vasopressin receptor 1B
       K04228  AVPR2; arginine vasopressin receptor 2
       K26200  SPR; sex peptide receptor
       K26201  FMRFaR; FMRFamide receptor
       K26202  Proc-R; proctolin receptor
       K26203  MsR; myosuppressin receptor
       K04176  CCR1, CD191; C-C chemokine receptor type 1
       K04177  CCR2, CD192; C-C chemokine receptor type 2
       K04178  CCR3, CD193; C-C chemokine receptor type 3
       K04179  CCR4, CD194; C-C chemokine receptor type 4
       K04180  CCR5, CD195; C-C chemokine receptor type 5
       K04181  CCR6, CD196; C-C chemokine receptor type 6
       K04182  CCR7, CD197; C-C chemokine receptor type 7
       K04183  CCR8, CDw198; C-C chemokine receptor type 8
       K04184  CCR9, CDw199; C-C chemokine receptor type 9
       K04185  CCR10; C-C chemokine receptor type 10
       K06574  ACKR1, DARC, CD234; atypical chemokine receptor 1
       K04187  ACKR2, CCBP2; atypical chemokine receptor 2
       K04186  ACKR4, CCRL1, CCR11; atypical chemokine receptor 4
       K08373  CCRL2; C-C chemokine receptor-like 2
       K08417  GPR75; G protein-coupled receptor 75
       K04175  CXCR1, IL8RA, CD181; C-X-C chemokine receptor type 1
       K05050  CXCR2, IL8RB, CD182; C-X-C chemokine receptor type 2
       K04188  CXCR3, GPR9, CD183; C-X-C chemokine receptor type 3
       K04189  CXCR4, CD184; C-X-C chemokine receptor type 4
       K04190  CXCR5, BLR1, CD185; C-X-C chemokine receptor type 5
       K04191  CXCR6, CD186; C-X-C chemokine receptor type 6
       K04304  CXCR7, ACKR3, RDC1; C-X-C chemokine receptor type 7 (atypical chemokine receptor 3)
       K04276  CXCR8, GPR35; C-X-C chemokine receptor type 8
       K04192  CX3CR1; CX3C chemokine receptor 1
       K04193  XCR1; XC chemokine receptor 1
       K04245  CMKLR1; chemokine-like receptor 1
       K04310  GPR1; G protein-coupled receptor 1
       K08403  GPR15; G protein-coupled receptor 15
       K08381  GPR32; G protein-coupled receptor 32
       K08382  GPR33; G protein-coupled receptor 33
       K04270  P2RY1; P2Y purinoceptor 1
       K04269  P2RY2; P2Y purinoceptor 2
       K04271  P2RY4; P2Y purinoceptor 4
       K04272  P2RY6; P2Y purinoceptor 6
       K08386  P2RY8; P2Y purinoceptor 8
       K08387  P2RY11; P2Y purinoceptor 11
       K04298  P2RY12; P2Y purinoceptor 12
       K08388  P2RY13; P2Y purinoceptor 13
       K04299  P2RY14; P2Y purinoceptor 14
       K10042  SUCNR1, GPR91; succinate receptor 1
       K04265  ADORA1; adenosine receptor A1
       K04266  ADORA2A, ADOR; adenosine receptor A2a
       K04267  ADORA2B; adenosine receptor A2b
       K04268  ADORA3; adenosine receptor A3
       K08410  GPR18; N-arachidonyl glycine receptor
       K08400  GPBAR1; G protein-coupled bile acid receptor 1
       K04322  CYSLTR1; cysteinyl leukotriene receptor 1
       K04323  CYSLTR2; cysteinyl leukotriene receptor 2
       K04325  FFAR1, GPR40; free fatty acid receptor 1
       K04328  FFAR2, GPR43; free fatty acid receptor 2
       K04326  FFAR3, GPR41; free fatty acid receptor 3
       K08425  FFAR4, GPR120; free fatty acid receptor 4
       K08421  GPR84; G protein-coupled receptor 84
       K10043  OXER1, GPR170; oxoeicosanoid receptor 1
       K08406  GPR31; 12-(S)-hydroxy-5,8,10,14-eicosatetraenoic acid receptor
       K04296  LTB4R1; leukotriene B4 receptor 1
       K04297  LTB4R2; leukotriene B4 receptor 2
       K04289  LPAR1, EDG2; lysophosphatidic acid receptor 1
       K04291  LPAR2, EDG4; lysophosphatidic acid receptor 2
       K04294  LPAR3, EDG7; lysophosphatidic acid receptor 3
       K04275  LPAR4, GPR23; lysophosphatidic acid receptor 4
       K08390  LPAR5, GPR92; lysophosphatidic acid receptor 5
       K04273  LPAR6, P2RY5; lysophosphatidic acid receptor 6
       K08389  GPR87; G protein-coupled receptor 87
       K08413  GPR55; G protein-coupled receptor 55
       K08383  GPR34; G protein-coupled receptor 34
       K04274  P2RY10; P2Y purinoceptor 10
       K08391  GPR174; G protein-coupled receptor 174
       K08424  GPR119; glucose-dependent insulinotropic receptor
       K04332  PTGDR; prostaglandin D2 receptor
       K06715  PTGDR2, GPR44, CD294; prostaglandin D2 receptor 2
       K04258  PTGER1; prostaglandin E receptor 1
       K04259  PTGER2; prostaglandin E receptor 2
       K04260  PTGER3; prostaglandin E receptor 3
       K04261  PTGER4; prostaglandin E receptor 4
       K04262  PTGFR; prostaglandin F receptor
       K04263  PTGIR; prostacyclin receptor
       K04288  S1PR1, EDG1, CD363; sphingosine 1-phosphate receptor 1
       K04292  S1PR2, EDG5; sphingosine 1-phosphate receptor 2
       K04290  S1PR3, EDG3; sphingosine 1-phosphate receptor 3
       K04293  S1PR4, EDG6; sphingosine 1-phosphate receptor 4
       K04295  S1PR5, EDG8; sphingosine 1-phosphate receptor 5
       K04264  TBXA2R; thromboxane A2 receptor
       K04250  RHO, OPN2; rhodopsin
       K04252  OPN1SW; short wavelength-sensitive opsin
       K04251  OPN1LW, OPN1MW; long/medium wavelength-sensitive opsin
       K04256  OPN3; c-opsin
       K13802  NINAE, Rh1; opsin Rh1
       K04255  OPN4, Rh2_7; r-opsin
       K08385  OPN5; G0-opsin
       K04253  RRH; visual pigment-like receptor peropsin
       K04254  RGR; retinal G protein coupled receptor
       K08419  OXGR1, GPR99; oxoglutarate (alpha-ketoglutarate) receptor 1
       K04277  CNR1; cannabinoid receptor 1
       K04278  CNR2; cannabinoid receptor 2
       K04246  GPER1, GPR30; G-protein coupled estrogen receptor 1
       K08401  HCAR1, GPR81; hydroxycarboxylic acid receptor 1
       K08402  HCAR2_3, GPR109; hydroxycarboxylic acid receptor 2/3
       K08428  GPR139; G protein-coupled receptor 139
       K08430  GPR142; G protein-coupled receptor 142
       K04303  MAS1; proto-oncogene Mas
       K04324  MAS1L; Mas-related G-protein coupled receptor MRG
       K08392  MRGPRD; Mas-related G protein-coupled receptor member D
       K08393  MRGPRE; Mas-related G protein-coupled receptor member E
       K08394  MRGPRF; Mas-related G protein-coupled receptor member F
       K08395  MRGPRG; Mas-related G protein-coupled receptor member G
       K22793  MRGPRH; Mas-related G protein-coupled receptor member H
       K08396  MRGPRX; Mas-related G protein-coupled receptor member X
       K04285  MTNR1A; melatonin receptor type 1A
       K04286  MTNR1B; melatonin receptor type 1B
       K04305  EBI2; Epstein-Barr virus induced gene 2
       K04279  PTAFR; platelet-activating factor receptor
       K04312  GPR4; G protein-coupled receptor 4
       K08416  GPR65, TDAG8; psychosine receptor
       K08408  GPR68, OGR1; ovarian cancer G-protein coupled receptor 1
       K08426  GPR132, G2A; G protein-coupled receptor 132
       K04309  LGR4, GPR48; leucine-rich repeat-containing G protein-coupled receptor 4
       K04308  LGR5, GPR49; leucine-rich repeat-containing G protein-coupled receptor 5
       K08399  LGR6; leucine-rich repeat-containing G protein-coupled receptor 6
       K04301  SREB1, GPR27; super conserved receptor expressed in brain 1
       K04302  SREB2, GPR85; super conserved receptor expressed in brain 2
       K22792  TrissinR; trissin receptor
       K22873  TRE1; protein trapped in endoderm-1
       K04311  GPR3; G protein-coupled receptor 3
       K04313  GPR6; G protein-coupled receptor 6
       K04315  GPR12; G protein-coupled receptor 12
       K08404  GPR17; G protein-coupled receptor 17
       K04317  GPR20; G protein-coupled receptor 20
       K04318  GPR21; G protein-coupled receptor 21
       K04319  GPR22; G protein-coupled receptor 22
       K08405  GPR25; G protein-coupled receptor 25
       K08411  GPR26; G protein-coupled receptor 26
       K08412  GPR39; G protein-coupled receptor 39
       K08409  GPR45; G protein-coupled receptor 45
       K04287  GPR50; G protein-coupled receptor 50
       K08407  GPR52; G protein-coupled receptor 52
       K08414  GPR61; G protein-coupled receptor 61
       K08415  GPR62; G protein-coupled receptor 62
       K04321  GPR63; G protein-coupled receptor 63
       K08418  GPR78; G protein-coupled receptor 78
       K08420  GPR82; G protein-coupled receptor 82
       K08422  GPR88; G protein-coupled receptor 88
       K08423  GPR101; G protein-coupled receptor 101
       K08427  GPR135; G protein-coupled receptor 135
       K08429  GPR141; G protein-coupled receptor 141
       K08431  GPR146; G protein-coupled receptor 146
       K08432  GPR148; G protein-coupled receptor 148
       K08433  GPR149; G protein-coupled receptor 149
       K08434  GPR150; G protein-coupled receptor 150
       K08435  GPR151; G protein-coupled receptor 151
       K08436  GPR152; G protein-coupled receptor 152
       K08437  GPR153; G protein-coupled receptor 153
       K08438  GPR160; G protein-coupled receptor 160
       K08439  GPR161; G protein-coupled receptor 161
       K08440  GPR162; G protein-coupled receptor 162
       K08442  GPR176; G protein-coupled receptor 176
       K04576  CALCR; calcitonin receptor
       K04577  CALCRL; calcitonin receptor-like
       K04585  PTH1R, PTHR1; parathyroid hormone receptor 1
       K04586  PTHR2; parathyroid hormone receptor 2
       K04578  CRHR1; corticotropin releasing hormone receptor 1
       K04579  CRHR2; corticotropin releasing hormone receptor 2
       K04584  GHRHR; growth hormone releasing hormone receptor
       K04581  GLP1R; glucagon-like peptide 1 receptor
       K04582  GLP2R; glucagon-like peptide 2 receptor
       K04583  GCGR; glucagon receptor
       K04580  GIPR; gastric inhibitory polypeptide receptor
       K04589  VIPR1; vasoactive intestinal peptide receptor 1
       K04590  VIPR2; vasoactive intestinal peptide receptor 2
       K04587  ADCYAP1R1, PACAPRI; pituitary adenylate cyclase-activating polypeptide type I receptor
       K04588  SCTR; secretin receptor
       K08447  RAMP1; receptor activity modifying protein 1
       K08448  RAMP2; receptor activity modifying protein 2
       K08449  RAMP3; receptor activity modifying protein 3
       K04599  MTH; G protein-coupled receptor Mth (Methuselah protein)
       K22738  PDFR; PDF receptor
       K04600  CELSR1; cadherin EGF LAG seven-pass G-type receptor 1
       K04601  CELSR2; cadherin EGF LAG seven-pass G-type receptor 2
       K04602  CELSR3; cadherin EGF LAG seven-pass G-type receptor 3
       K04591  ADGRE1, EMR1; adhesion G protein-coupled receptor E1
       K08443  ADGRE2, EMR2, CD312; adhesion G protein-coupled receptor E2
       K08444  ADGRE3, EMR3; adhesion G protein-coupled receptor E3
       K08445  ADGRE4, EMR4; adhesion G protein-coupled receptor E4
       K08446  ADGRE5, CD97; CD97 antigen
       K04592  ADGRL1, LPHN1; adhesion G protein-coupled receptor L1
       K04593  ADGRL2, LPHN2; adhesion G protein-coupled receptor L2
       K04594  ADGRL3, LPHN3; adhesion G protein-coupled receptor L3
       K04595  ADGRL4, ELTD1; adhesion G protein-coupled receptor L4
       K04596  ADGRB1, BAI1; adhesion G protein-coupled receptor B1
       K04597  ADGRB2, BAI2; adhesion G protein-coupled receptor B2
       K04598  ADGRB3, BAI3; adhesion G protein-coupled receptor B3
       K08460  ADGRA1, GPR123; adhesion G protein-coupled receptor A1
       K08461  ADGRA2, GPR124; adhesion G protein-coupled receptor A2
       K08462  ADGRA3, GPR125; adhesion G protein-coupled receptor A3
       K08465  ADGRD1, GPR133; adhesion G-protein coupled receptor D1
       K08466  ADGRD2, GPR144; adhesion G-protein coupled receptor D2
       K08453  ADGRF1, GPR110; adhesion G-protein coupled receptor F1
       K08454  ADGRF2, GPR111; adhesion G-protein coupled receptor F2
       K08456  ADGRF3, GPR113; adhesion G-protein coupled receptor F3
       K08457  ADGRF4, GPR115; adhesion G-protein coupled receptor F4
       K08458  ADGRF5, GPR116; adhesion G-protein coupled receptor F5
       K08450  ADGRG1, GPR56; adhesion G-protein coupled receptor G1
       K08451  ADGRG2, GPR64; adhesion G-protein coupled receptor G2
       K08452  ADGRG3, GPR97; adhesion G-protein coupled receptor G3
       K08455  ADGRG4, GPR112; adhesion G-protein coupled receptor G4
       K08459  ADGRG5, GPR114; adhesion G-protein coupled receptor G5
       K08463  ADGRG6, GPR126; adhesion G-protein coupled receptor G6
       K08464  ADGRG7, GPR128; adhesion G-protein coupled receptor G7
       K18263  ADGRV1, GPR98, USH2C; adhesion G-protein coupled receptor V1
       K04603  GRM1; metabotropic glutamate receptor 1
       K04605  GRM2; metabotropic glutamate receptor 2
       K04606  GRM3; metabotropic glutamate receptor 3
       K04607  GRM4; metabotropic glutamate receptor 4
       K04604  GRM5; metabotropic glutamate receptor 5
       K04608  GRM6; metabotropic glutamate receptor 6
       K04609  GRM7; metabotropic glutamate receptor 7
       K04610  GRM8; metabotropic glutamate receptor 8
       K04611  MXR; metabotropic X receptor
       K04615  GABBR; gamma-aminobutyric acid type B receptor
       K04617  GPR156, GABABL; gamma-aminobutyric acid type B receptor-like
       K04612  CASR; calcium-sensing receptor
       K04622  GPRC6A; G protein-coupled receptor family C group 6 member A
       K08468  GPRC5A; G protein-coupled receptor family C group 5 member A
       K04619  GPRC5B; G protein-coupled receptor family C group 5 member B
       K04620  GPRC5C; G protein-coupled receptor family C group 5 member C
       K04621  GPRC5D; G protein-coupled receptor family C group 5 member D
       K04623  BOSS; bride of sevenless protein
       K08469  GPR158; G protein-coupled receptor 158
       K22961  GPR179; G protein-coupled receptor 179
       K02432  FZD1_7, fz; frizzled 1/7
       K02235  FZD2; frizzled 2
       K02329  FZD3; frizzled 3
       K02354  FZD4, fz4, CD344; frizzled 4
       K02375  FZD5_8, fz2; frizzled 5/8
       K02376  FZD6; frizzled 6
       K02842  FZD9_10, CD349_50; frizzled 9/10
       K04690  FZDN, fz3; frizzled
       K06226  SMO; smoothened
       K04257  OLFR; olfactory receptor
       K04624  TAS1R1; taste receptor type 1 member 1
       K04625  TAS1R2; taste receptor type 1 member 2
       K04626  TAS1R3; taste receptor type 1 member 3
       K08474  TAS2R; taste receptor type 2
       K04614  V1R; vomeronasal 1 receptor
       K04613  V2R; vomeronasal 2 receptor
       K22984  OR; odorant receptor
       K08471  GR; gustatory receptor
       K08473  K08473; nematode chemoreceptor
       K11213  STE2; pheromone alpha factor receptor
       K04627  STE3; pheromone a factor receptor
       K08470  OA1, GPR143; ocular albinism type 1 protein
       K22985  GPR107; G protein-coupled receptor 107
       K08472  MLO; mlo protein
       K12762  GPR1; G protein-coupled receptor GPR1
       K04629  CARN; cAMP receptor
       K22987  GCR1, CRLA; cAMP receptor-like G-protein coupled receptor
       K04641  bop; bacteriorhodopsin
       K04642  hop; halorhodopsin
       K04643  sop; sensory rhodopsin
       K22988  TPRA1, GPR175; transmembrane protein adipocyte-associated 1
       K22986  GPR108; G protein-coupled receptor 108
       K22989  GPR137; integral membrane protein GPR137
       K08467  GPR157; G protein-coupled receptor 157