The KᵢDB allows you to filter and search for various scientific entities, including receptors, sources, species, hot ligands, test ligands, and citations.

You can customize your search by selecting multiple items or using specific Kᵢ values for more targeted results.

Selecting a hot ligand or test ligand from the table will redirect you to the specifications of the chosen entity.

Selecting a citation from the table will open its respective PubMed link.

Showing 1-129 of 129 items.

Kᵢ Database

Kᵢ IDReceptorsSourcesSpeciesHot LigandsTest LigandsKᵢ ValueCitationsSubmitted AtUpdated At 
8275-HT2CChoroid PlexusRAT3H-MIANSERINMESULERGINE1Sanders-Bush E, Breeding M., 1988Jan 15, 2025Jan 15, 2025
8285-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.3PAZOS ET AL, 1984Jan 15, 2025Jan 15, 2025
8295-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.58HOYER, 1988 or 9 (book)Jan 15, 2025Jan 15, 2025
8305-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.62HOYER ET AL., 1985Jan 15, 2025Jan 15, 2025
8315-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.62MARKSTEIN ET AL, 1986Jan 15, 2025Jan 15, 2025
8325-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.62SCHLICKER ET AL., 1989Jan 15, 2025Jan 15, 2025
8335-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.62HOYER & KARPF, 1988Jan 15, 2025Jan 15, 2025
8345-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.62HOYER, 1988Jan 15, 2025Jan 15, 2025
8355-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.62HOYER ET AL., 1989Jan 15, 2025Jan 15, 2025
8365-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.62HOYER, 1989 (J.R.R.)Jan 15, 2025Jan 15, 2025
8375-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.74HOYER ET AL., 1986Jan 15, 2025Jan 15, 2025
8385-HT2CCORTEXPIG3H-MESULERGINEMESULERGINE2PAZOS ET AL, 1984Jan 15, 2025Jan 15, 2025
8395-HT2CCORTEXRAT3H-MESULERGINEMESULERGINE2.14HOYER ET AL., 1985Jan 15, 2025Jan 15, 2025
8405-HT2CChoroid PlexusPIG125I-SCH 23982MESULERGINE3.55HOYER & KARPF, 1988Jan 15, 2025Jan 15, 2025
8415-HT2CChoroid PlexusPIG3H-5HTMESULERGINE4PAZOS ET AL, 1984Jan 15, 2025Jan 15, 2025
8425-HT2CChoroid PlexusHUMAN3H-MESULERGINEMESULERGINE4.27HOYER ET AL., 1986Jan 15, 2025Jan 15, 2025
8435-HT2CChoroid PlexusPIG125I-LSDMESULERGINE9.55HOYER ET AL., 1986Jan 15, 2025Jan 15, 2025
13435-HT1DCAUDATEPIG3H-5HTMESULERGINE1700SCHLICKER ET AL., 1989Jan 15, 2025Jan 15, 2025
13445-HT1DCAUDATEPIG3H-5HTMESULERGINE1700WAEBER ET AL., 1988Jan 15, 2025Jan 15, 2025
13455-HT1DSTRIATUMRAT3H-5HTMESULERGINE2800HERRICK-DAVIS & TITELER, 198Jan 15, 2025Jan 15, 2025
13465-HT1DCORTEXRAT3H-5HTMESULERGINE3300HERRICK-DAVIS & TITELER, 198Jan 15, 2025Jan 15, 2025
13475-HT1DCAUDATEHUMAN3H-5HTMESULERGINE5890WAEBER ET AL., 1988Jan 15, 2025Jan 15, 2025
13485-HT1DCAUDATECOW3H-5HTMESULERGINE6310HOYER, 1987Jan 15, 2025Jan 15, 2025
13495-HT1DCAUDATECALF3H-5HTMESULERGINE6310HOYER, 1988 or 9 (book)Jan 15, 2025Jan 15, 2025
13505-HT1DCAUDATECALF3H-5HTMESULERGINE6310HOYER, 1989 (J.R.R.)Jan 15, 2025Jan 15, 2025
13515-HT1DCAUDATECALF3H-5HTMESULERGINE6310WAEBER ET AL., 1988Jan 15, 2025Jan 15, 2025
13525-HT1DSTRIATUMBOVINE3H-5HTMESULERGINE6500HEURING & PEROUTKA, 1987Jan 15, 2025Jan 15, 2025
13535-HT1DCORTEXHUMAN3H-5HTMESULERGINE>10000PEROUTKA ET AL., 1989Jan 15, 2025Jan 15, 2025
14475-HT1BCORTEXRAT3H-5HTMESULERGINE>10000HOYER ET AL., 1985Jan 15, 2025Jan 15, 2025
14505-HT1BCORTEXRAT3H-5HTMESULERGINE>10000HOYER ET AL., 1985Jan 15, 2025Jan 15, 2025
14515-HT1BCORTEXRAT125I-CYPMESULERGINE>10000MARKSTEIN ET AL, 1986Jan 15, 2025Jan 15, 2025
14525-HT1BCORTEXRAT125I-CYPMESULERGINE>10000SCHLICKER ET AL., 1989Jan 15, 2025Jan 15, 2025
14535-HT1BCORTEXRAT125I-CYPMESULERGINE>10000HOYER, 1988(9) (J.R.R.)Jan 15, 2025Jan 15, 2025
24125-HT3ENTO CORTEXRAT3H-ZACOPRIDEMESULERGINE>10000BARNES ET AL., 1988Jan 15, 2025Jan 15, 2025
24135-HT3CORTEXRAT3H-QUIPAZINEMESULERGINE>10000MILBURN & PEROUTKA, 1989Jan 15, 2025Jan 15, 2025
24145-HT3CORTEXRAT3H-QUIPAZINEMESULERGINE>10000PEROUTKA & HAMIK, 1988Jan 15, 2025Jan 15, 2025
29355-HT2ACORTEXRAT3H-MESULERGINEMESULERGINE2.1CLOSSE, 1983Jan 15, 2025Jan 15, 2025
29365-HT2ACORTEXRAT3H-KETANSERINMESULERGINE3.2PAZOS ET AL, 1984Jan 15, 2025Jan 15, 2025
29375-HT2ACORTEXRAT3H-KETANSERINMESULERGINE3.8HOYER ET AL., 1985Jan 15, 2025Jan 15, 2025
29385-HT2ACORTEXRAT3H-KETANSERINMESULERGINE3.8MARKSTEIN ET AL, 1986Jan 15, 2025Jan 15, 2025
29395-HT2ACORTEXRAT3H-KETANSERINMESULERGINE3.8HOYER, 1988 (TIPS)Jan 15, 2025Jan 15, 2025
29405-HT2ACORTEXRAT3H-KETANSERINMESULERGINE3.8HOYER, 1989 (J.R.R.)Jan 15, 2025Jan 15, 2025
29415-HT2BCORTEXBOVINE3H-KETANSERINMESULERGINE8MCKENNA & PEROUTKA, 1989Jan 15, 2025Jan 15, 2025
29435-HT2ACORTEXPIG3H-KETANSERINMESULERGINE110HOYER ET AL., 1987Jan 15, 2025Jan 15, 2025
29445-HT2ACORTEXHUMAN3H-KETANSERINMESULERGINE151HOYER ET AL., 1987Jan 15, 2025Jan 15, 2025
39335-HT6CLONEDRAT3H-LSDMESULERGINE1737.8BOESS FG, ET AL., 1996Jan 15, 2025Jan 15, 2025
39535-HT6CLONEDRAT3H-5HTMESULERGINE7943.28BOESS FG, ET AL., 1996Jan 15, 2025Jan 15, 2025
41665-HT1DCLONEDHUMAN3H-5HTMESULERGINE1700HAMBLIN AND METCALF, 1991Jan 15, 2025Jan 15, 2025
41885-HT1BCLONEDHUMAN3H-5HTMESULERGINE640HAMBLIN MW, ET AL., 1992Jan 15, 2025Jan 15, 2025
42215-HT6CLONEDRAT125I-LSDMESULERGINE1720MONSMA FJ Jr. ET AL., 1993Jan 15, 2025Jan 15, 2025
42985-HT7CLONEDRAT125I-LSDMESULERGINE7.13SHEN Y, ET AL., 1993Jan 15, 2025Jan 15, 2025
43235-HT7CLONEDRAT3H-5HTMESULERGINE21.1SHEN Y, ET AL., 1993Jan 15, 2025Jan 15, 2025
43595-HT6CLONEDHUMAN3H-LSDMESULERGINE3800KOHEN R, ET AL., 1996Jan 15, 2025Jan 15, 2025
43975-HT1BCLONEDRAT3H-5HTMESULERGINE>10000HAMBLIN MW, ET AL., 5/1992Jan 15, 2025Jan 15, 2025
44185-HT1DCLONEDRAT3H-5HTMESULERGINE92HAMBLIN MW, ET AL., 5/1992Jan 15, 2025Jan 15, 2025
45725-HT2CCLONEDRAT125I-LSDMESULERGINE3ROTH BL, ET AL., 1992Jan 15, 2025Jan 15, 2025
45985-HT2ABRAINRAT3H-KETANSERINMESULERGINE3.1ROTH BL, ET AL., 1992Jan 15, 2025Jan 15, 2025
47555-HT2CCLONEDRAT3H-5HTMESULERGINE2.7HERRICK-DAVIS K, ET AL., 1998Jan 15, 2025Jan 15, 2025
47685-HT2CCLONEDRAT3H-MESULERGINEMESULERGINE0.9HERRICK-DAVIS K, ET AL., 1998Jan 15, 2025Jan 15, 2025
48645-HT2BCLONEDHUMAN3H-5HTMESULERGINE3.3WAINSCOTT DB, ET AL., 1998Jan 15, 2025Jan 15, 2025
48805-HT2BCLONEDHUMAN3H-RAUWOLSCINEMESULERGINE1.92WAINSCOTT DB, ET AL., 1998Jan 15, 2025Jan 15, 2025
49685-HT2ACLONEDRAT3H-KETANSERINMESULERGINE3.8BONHAUS DW, ET AL., 1997Jan 15, 2025Jan 15, 2025
49965-HT2CCLONEDRAT3H-MESULERGINEMESULERGINE1.9BONHAUS DW, ET AL., 1997Jan 15, 2025Jan 15, 2025
50245-HT2ACLONEDHUMAN3H-KETANSERINMESULERGINE19.49BONHAUS DW, ET AL., 1997Jan 15, 2025Jan 15, 2025
50555-HT2BCLONEDHUMAN3H-5HTMESULERGINE1.44BONHAUS DW, ET AL., 1997Jan 15, 2025Jan 15, 2025
50865-HT2CCLONEDHUMAN3H-MESULERGINEMESULERGINE1.69BONHAUS DW, ET AL., 1997Jan 15, 2025Jan 15, 2025
51775-HT5ACLONEDRAT125I-LSDMESULERGINE1000ERLANDER MG, ET AL., 1993Jan 15, 2025Jan 15, 2025
51875-HT5BCLONEDRAT125I-LSDMESULERGINE1000ERLANDER MG, ET AL., 1993Jan 15, 2025Jan 15, 2025
52005-HT5BCLONEDRAT3H-5CTMESULERGINE1000WISDEN W, ET AL., 1993Jan 15, 2025Jan 15, 2025
54875-HT2BCLONEDHUMAN3H-5HTMESULERGINE3.62WAINSCOTT DB, ET AL., 1996Jan 15, 2025Jan 15, 2025
55245-HT2BCLONEDRAT3H-5HTMESULERGINE35.9WAINSCOTT DB, ET AL., 1996Jan 15, 2025Jan 15, 2025
62885-HT7CLONEDGUINEA PIG3H-5CTMESULERGINE15.48TO ZP, ET AL., 1995Jan 15, 2025Jan 15, 2025
63255-HT7CORTEXGUINEA PIG3H-5CTMESULERGINE66.06TO ZP, ET AL., 1995Jan 15, 2025Jan 15, 2025
64925-HT7CLONEDHUMAN3H-5HTMESULERGINE18BARD JA, ET AL., 1993Jan 15, 2025Jan 15, 2025
65165-HT6CLONEDHUMAN125I-LSDMESULERGINE1720BARD JA, ET AL., 1993Jan 15, 2025Jan 15, 2025
65435-HT7BCLONEDHUMAN3H-5CTMESULERGINE13.48JASPER JR,ET AL.,Jan 15, 2025Jan 15, 2025
65925-HT6CLONEDRAT125I-LSDMESULERGINE1720SEBBEN M, ET AL., 1994Jan 15, 2025Jan 15, 2025
66035-HT7CLONEDMammalian3H-5HTMESULERGINE18SEBBEN M, ET AL., 1994Jan 15, 2025Jan 15, 2025
66185-HT6CLONEDMOUSE3H-5HTMESULERGINE25.11PLASSAT JL, ET AL., 1993Jan 15, 2025Jan 15, 2025
67735-HT1FCLONEDHUMAN3H-5HTMESULERGINE>10000Adham N, et al., 1992Jan 15, 2025Jan 15, 2025
126055-HT1BSpinal cordRAT125I-ICYPMESULERGINE>10000Matsumoto I, et al., 1992Jan 15, 2025Jan 15, 2025
15127BRAINRAT3H-KETANSERINMESULERGINE8.2Nelson et al., 1993Jan 15, 2025Jan 15, 2025
15140BRAINPIG3H-KETANSERINMESULERGINE54.2Nelson et al., 1993Jan 15, 2025Jan 15, 2025
15149BRAINMonkey3H-KETANSERINMESULERGINE44.9Nelson et al., 1993Jan 15, 2025Jan 15, 2025
15156CLONEDHUMAN3H-KETANSERINMESULERGINE48.5Nelson et al., 1993Jan 15, 2025Jan 15, 2025
152375-HT1ACLONEDHUMAN3H-8-OH-DPATMESULERGINE398.1BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
152855-HT1ACLONEDHUMAN3H-cAMPMESULERGINE194.98BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
154025-HT1BCLONEDHUMAN3H-5HTMESULERGINE1288.24BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
154185-HT1BCLONEDHUMAN3H-5HTMESULERGINE630.95BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
155885-HT2ACLONEDHUMAN3H-KETANSERINMESULERGINE128.82BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
156225-HT2BCLONEDRAT3H-5HTMESULERGINE36.3BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
156485-HT2CCLONEDRAT125I-DOIMESULERGINE1.99BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
156575-HT2CCLONEDRAT3H-MESULERGINEMESULERGINE3.01BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
156615-HT2CCLONEDRAT125I-LSDMESULERGINE3.01BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
158115-HT7CLONEDRAT125I-LSDMESULERGINE7.07BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
158305-HT7CLONEDRAT3H-5HTMESULERGINE20.89BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
158535-HT7CLONEDMOUSE3H-5HTMESULERGINE25.11BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
158695-HT7CLONEDHUMAN3H-5HTMESULERGINE18.19BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
158965-HT7CLONEDRAT125I-LSDMESULERGINE9.33BOESS FG, ET AL., 1994Jan 15, 2025Jan 15, 2025
159485-HT7CLONEDRAT125I-LSDMESULERGINE9.3Lovenberg TW, et al., 1993aJan 15, 2025Jan 15, 2025
159645-HT1ACLONEDRAT125I-LSDMESULERGINE545Lovenberg TW, et al., 1993aJan 15, 2025Jan 15, 2025
163545-HT1ACLONEDHUMAN3H-8-OH-DPATMESULERGINE197Pauwels PJ, Van Gompel P, and Leysen JE, 1993Jan 15, 2025Jan 15, 2025
222685-HT2ACORTEXRABBIT3H-KETANSERINMESULERGINE8.3Weber JT, et al., 1997aJan 15, 2025Jan 15, 2025
313625-HT7BRAINRAT3H-MESULERGINEMESULERGINE10Hemedah M, et al., 1999Jan 15, 2025Jan 15, 2025
313725-HT7ILEUMGUINEA PIG3H-MESULERGINEMESULERGINE12.5893Hemedah M, et al., 1999Jan 15, 2025Jan 15, 2025
314045-HT7CLONEDHUMAN3H-5HTMESULERGINE19.9526Eglen RM et al., 1997Jan 15, 2025Jan 27, 2025
314175-HT7CLONEDHUMAN3H-5CTMESULERGINE12.5893Eglen RM et al., 1997Jan 15, 2025Jan 27, 2025
314285-HT7CLONEDRAT125I-LSDMESULERGINE7.94328Eglen RM et al., 1997Jan 15, 2025Jan 27, 2025
314545-HT7CLONEDRAT125I-LSDMESULERGINE15.8489Eglen RM et al., 1997Jan 15, 2025Jan 27, 2025
314635-HT7CLONEDGUINEA PIG3H-5CTMESULERGINE15.8489Eglen RM et al., 1997Jan 15, 2025Jan 27, 2025
320415-HT7CLONEDHUMAN3H-5CTMESULERGINE31.6228Thomas DR et al., 1998Jan 15, 2025Jan 15, 2025
325535-HT2CCORTEXPIG3H-MESULERGINEMESULERGINE1.99526PAZOS ET AL, 1984Jan 15, 2025Jan 15, 2025
325675-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.25893PAZOS ET AL, 1984Jan 15, 2025Jan 15, 2025
325815-HT2CCORTEXPIG3H-5HTMESULERGINE6.30957PAZOS ET AL, 1984Jan 15, 2025Jan 15, 2025
325955-HT2CChoroid PlexusPIG3H-5HTMESULERGINE3.98107PAZOS ET AL, 1984Jan 15, 2025Jan 15, 2025
397415-HT2ACLONEDHUMAN125I-DOIMESULERGINE45.7088Knight AR, et al., 2004Jan 15, 2025Jan 15, 2025
397625-HT2BCLONEDHUMAN3H-5HTMESULERGINE3.46737Knight AR, et al., 2004Jan 15, 2025Jan 15, 2025
397835-HT2CCLONEDHUMAN3H-5HTMESULERGINE1.8197Knight AR, et al., 2004Jan 15, 2025Jan 15, 2025
398245-HT2CCLONEDHUMAN3H-MESULERGINEMESULERGINE1.12202Cussac D, et al., 2002Jan 15, 2025Jan 15, 2025
398365-HT2BCLONEDHUMAN3H-MESULERGINEMESULERGINE1.94984Cussac D, et al., 2002Jan 15, 2025Jan 15, 2025
402705-HT2BCLONEDRAT3H-5HTMESULERGINE39.8107Glusa E, et al., 2000Jan 15, 2025Jan 15, 2025
402795-HT2CChoroid PlexusPIG3H-MESULERGINEMESULERGINE1.58489Glusa E, et al., 2000Jan 15, 2025Jan 15, 2025
402925-HT6CLONEDRAT3H-LSDMESULERGINE1584.89Glusa E, et al., 2000Jan 15, 2025Jan 15, 2025
403085-HT7CLONEDRAT3H-LSDMESULERGINE6.30957Glusa E, et al., 2000Jan 15, 2025Jan 15, 2025
504805-HT2ACORTEXRAT125I-DOIMESULERGINE3.2MCKENNA & PEROUTKA, 1989Jan 15, 2025Jan 15, 2025
677465-HT1ACEREBRAL CORTEXRAT3H-8-OH-DPATMESULERGINE407.38Weltrowska et al., 2010Jan 15, 2025Jan 15, 2025
677535-HT2CChoroid PlexusPIG3H-5-HTMESULERGINE1.38038Weltrowska et al., 2010Jan 15, 2025Jan 15, 2025
857875-HT2CFR. CORTEXRAT3H-MESULERGINEMESULERGINE1.9Fiorino F et al 2017Jan 15, 2025Jan 15, 2025
867615-HT2CFR. CORTEXRAT3H-MESULERGINEMESULERGINE1.9Fiorino F et al 2016Jan 15, 2025Jan 15, 2025