subtypes

DFP00173 is a potent and selective aquaporin 3 (AQP3) inhibitor, with an IC50 of approximately 0.1-0.4 μM for both mouse and human AQP3. It demonstrates selectivity for AQP3 compared to homologous AQP subtypes AQP7 and AQP9.

VU0364770 (VU 0364770)(EC50=1.1 μM), a positive allosteric modulator(PAM) of mGlu4, shows insignificant activity at 68 other receptors, including other mGlu subtypes.

Proglumide (Binoside) is a cholecystokinin antagonist, which blocks both the CCKA and CCKB subtypes. Proglumide is a drug that exerts an inhibitory effect on gastric secretion and reduces gastrointestinal motility. It is used clinically in the drug therapy of gastrointestinal ulcers.

Dacomitinib hydrate (PF 299804) is a highly selective and second-generation small-molecule inhibitor of the pan-epidermal growth factor receptor family of tyrosine kinases. Dacomitinib specifically and irreversibly binds to and inhibits human EGFR subtypes, resulting in inhibition of proliferation and induction of apoptosis in EGFR-expressing tumor cells.

Oxybutynin chloride (Oxybutynin HCl) is an anticholinergic medication used to relieve urinary and bladder difficulties. It competitively antagonizes the M1, M2, and M3 subtypes of the muscarinic acetylcholine receptor.

Ac-Endothelin-1 (16-21), human acetate, the principal peptide of the endothelin family, has been shown to have a variety of biological activities in both vascular and nonvascular tissues. The C-terminal fragment, which is a highly conserved sequence in th

PP7 is a potent inhibitor of PB1-PB2 interaction(IC50 of 8.6 μM).

(±)-Tazifylline is a selective and long-acting antagonist of histamine H1 receptor. Tazifylline shows much lower affinity for H2 receptors, α- and β-adrenoceptors, 5-hydroxytryptamine and muscarinic receptor subtypes.

BMY-27709 is an influenza virus growth inhibitor with an IC50 value of 3-8 μM against A WSN 33 virus growth and demonstrates inhibitory activity against certain subtypes of influenza viruses. BMY-27709 acts early in H1 and H2 virus infections by inhibiting hemagglutinin proteins but has no effect on H3 subtype viruses and influenza B Lee 40 viruses.

FiVe1 is a vimentin binding small molecule that promotes the disintegration and phosphorylation of vimentin in the metaphase, leading to mitotic disasters, polynuclearization, and loss of cancer cell dryness. FiVe1 selectively and irreversibly inhibit the growth of mesenchymal transformed breast cancer cells (FOXC2-HMLER cell, IC50=234nM) and soft tissue sarcomas of different histological subtypes.

DMCM hydrochloride is a non-selective fully inverse agonist of benzodiazepine. DMCM showed significant differences in human recombinant GABAA αxβ3γ2 receptor subtypes. For α1, α2, α3, and α5 receptors, their Kis were 10 nM, 13 nM, 7.5 nM, 2.2 nM, respectively.

SS-208 is a selective inhibitor of HDAC6 (IC50 = 12 nM) with anti-tumor activity. SS-208 shows selectivity over other HDAC subtypes.

Deramciclane has high affinity for 5-HT2A and 5-HT2C receptors. It acts as an antagonist in both receptor subtypes and has inverse agonist properties for 5-HT2C receptors, but no direct stimulant agonists.

MPT0G211 is a highly selective and orally active HDAC6 inhibitor (IC50=0.291 nM) that has neuroprotective effects and has shown anti-metastatic activity in human breast cancer cells. MPT0G211 has 1,000 times more affinity for HDAC6 than other HDAC subtypes. MPT0G211 can cross the blood-brain barrier and could be used to improve tau phosphorylation and cognitive deficits in Alzheimer's disease models.

L162389 is an orally active and potent angiotensin II receptor antagonist with a balanced affinity for AT1 and AT2 receptor subtypes that stimulates the conversion of phosphatidylinositol.

Ciproxifan maleate (FUB 359)(FUB-359 maleate) is a highly potent and selective histamin H3-receptor antagonist with IC50 of 9.2 nM, with low apparent affinity at other receptor subtypes.

Deschloroclozapine, a metabolite of Clozapine, is a highly potent muscarinic DREADDs agonist that binds to DREADD receptor subtypes [hM3Dq] and [hM4Di] with Ki values of 6.3 nM and 4.2 nM, respectively.

VU0357121, a positive allosteric modulator of mGlu5 (EC50: 33 nM), is inactive or very weakly antagonizing at other mGlu receptor subtypes.

CYM50308 is a high affinity agonist of sphingosine-1-phosphate receptor 4 (S1P4-R) (EC50: 56 nM). CYM50308 has no activity at S1P1-R, S1P2-R and S1P3-R subtypes at concentrations up to 25 μM and it shows 37-fold more selective for S1P4-R than S1P5-R.

(R)-Terazosin is an active R-enantiomer of Terazosin and a potent antagonist of α1-adrenoceptor [(α1a, α1b, and α1d-adrenoceptor] with Ki values of 6.51 nM, 1.01 nM, and 1.97 nM, respectively).

NS309 is a nonselective activator of small- and intermediate-conductance Ca2+-activated K+ (SK/KCa2 and IK/KCa3.1) channels (EC50s range from 0.12-1.2 µM for SK channels and 10-90 nM for IK channels). It can also activate voltage-gated Kv11.1 channels (hE

AZD-8529 mesylate is a highly selective, and orally bioavailable positive allosteric modulator of mGluR2 (EC50: 285 nM). It shows no positive allosteric modulator responses at 20-25 M on the mGluR1, 3, 4, 5, 6, 7, and 8 subtypes.

Flindokalner (BMS-204352) is a potassium channel modulator and a positive modulator of all neuronal Kv7 channel subtypes expressed in HEK293 cells. It is also a positive modulator of large conductance calcium-activated K channels (BKca) and displays negative modulatory activity at Kv7.1 channels (Ki = 3.7 μM). Additionally, Flindokalner acts as a negative modulator of GABAA receptors and demonstrates anxiolytic efficacy in vivo.

VX-150 is a highly selective NaV1.8 inhibitor relative to the other sodium channel subtypes (>400-fold).

L-838417 D9 (C-21191) is a novel deuterated subtype-selective GABAA positive allosteric modulator, acting as a partial agonist at α2, α3 and α5 subtypes[1].

VU-29 is a positive allosteric mGlu5 receptor modulator with an EC50 of 9 nM and a Ki of 244 nM for rmGluR5. It is selective for mGluR5 relative to other mGluR subtypes [EC50: rmGluR1 rmGluR2=557 nM 1.5 μM; hmGluR4=154 nM].

Ozanimod (RPC-1063) (RPC1063) is a specific oral S1P Receptor 1 modulator. Ozanimod has been used in trials studying the treatment of Crohn's Disease, Ulcerative Colitis, Multiple Sclerosis, and Relapsing Multiple Sclerosis.

AM14 is a potent human RSV antibody that effectively neutralizes laboratory strains and clinical isolates of RSV from A and B subtypes.

ProTx-II TFA is a potent and highly selective Nav1.7 sodium channel blocker, exhibiting an IC50 of 0.3 nM and demonstrating at least 100-fold selectivity over other sodium channel subtypes. It decreases channel conductance, shifts activation towards more positive potentials, and inhibits action potential propagation in nociceptors [1] [2].

Indeglitazar (PPM 204) is orally available pan-agonist of PPAR (PPAR subtypes alpha (α), delta (δ), and gamma (γ)).

NBI-31772 hydrate is a powerful inhibitor of the interaction between insulin-like growth factor (IGF) and IGF-binding proteins (IGFBPs). It acts as a nonpeptide ligand, effectively releasing bioactive IGF-I from the IGF-I/IGFBP-3 complex (Ki values for all six human subtypes range from 1-24 nM). This compound demonstrates significant anxiolytic and antidepressant-like effects [1] [2] [3].

Prucalopride (R-93877) is a selective, high-affinity 5-HT4A/4B receptor agonist (Ki: 2.5/8 nM). It has >290-fold selectivity for 5-HT4A/4B receptor than other 5-HT receptor subtypes.

Eprosartan (SKF-108566J free base) is a selective, competitive nonpeptide angiotensin II receptor antagonist with high affinity for AT1 receptor subtypes, used as an antihypertensive agent. It exhibits inhibitory effects on angiotensin II receptors with IC50 values of 9.2 nM in rat adrenocortical membranes and 3.9 nM in human adrenocortical membranes.

α-Conotoxin PIA TFA, targeting nicotinic acetylcholine receptor (nAChR) subtypes with α6 and α3 subunits, acts as an antagonist. This compound shows promise for research into Parkinson’s disease and schizophrenia [1].

Conopeptide rho-TIA, a peptide from Conus tulipa venom, acts as a selective, noncompetitive inhibitor at the human α1B-Adrenergic Receptor and as a competitive inhibitor at the α1A and α1D-Adrenergic Receptors. Binding to these subtypes, conopeptide rho-TIA may inform the creation of new α1-Adrenergic Receptor subtype-selective drugs [1].

Hongotoxin-1, a chemical compound isolated from the venom of Centruroides limbatus, functions as a potassium channel inhibitor. It exhibits inhibitory concentrations (IC50) for potassium channel subtypes Kv1.1, Kv1.2, Kv1.3, and Kv1.6 at 31 pM, 170 pM, 86 pM, and 6000 pM, respectively [1].

Naratriptan Hydrochloride is the hydrochloride salt form of naratriptan, a sulfonamide with selective serotonin (5-HT) 1 receptor agonistic activity and anti-migraine property. Naratriptan hydrochloride (GR-85548A hydrochloride) binds selectively and with high affinity to the 5-HT1D and 5-HT1B receptor subtypes. Activation of these 5-HT1D/B receptors located on intracranial blood vessels leads to vasoconstriction and provides relief of migraine headaches. Naratriptan hydrochloride may also exerts its effect by stimulation of 5-HT1D/1B receptors on sensory nerve endings in the trigeminal system thereby decreasing the release of pro-inflammatory neuropeptides.

PSB-1901 is a potent A2B Adenosine Receptor Antagonist with Picomolar Potency (Ki 0.0835 nM, KB 0.0598 nM, human A2BAR) with >10 000-fold selectivity versus all other AR subtypes. PSB-1901 was similarly potent and selective at the mouse A2BAR, making it a promising tool for preclinical studies.

Forasartan is a non - peptide angiotensin II receptor antagonist with antihypertensive activity. Forasartan and angiotensin II compete to bind AT1 receptor subtypes in vascular smooth muscle, thereby blocking angiotensin II-mediated vasoconstriction, lead

Topoisomerase II inhibitor 3 (Compound 6 h) is an acridone derivative acting as a Type II DNA topoisomerase (topo II) inhibitor. It specifically targets topo IIα β subtypes, with IC50 values of 0.17 μM for topo IIα and 0.23 μM for topo IIβ, causing significant DNA damage and inducing apoptosis by triggering the loss of mitochondrial membrane potential [1].

Pasireotide(SOM 230) is a stable cyclohexapeptide somatostatin mimic that exhibits unique high-affinity binding to human somatostatin receptors (subtypes sst1/2/3/4/5, pKi=8.2/9.0/9.1/<7.0/9.9 respectively).

(4S,5S)-(+)-Germacrone-4,5-epoxide inhibits certain subtypes of cytochrome P450 (CYP).

AL-38022A is a novel synthetic serotonergic (5-HT) ligand that exhibited high affinity for each of the 5-HT2 receptor subtypes (Ki100-fold less) affinity for other 5-HT receptors. In addition, AL-38022A displayed a very low affinity for a broad array of other receptors, neurotransmitter transport sites, ion channels, and second messenger elements, making it a relatively selective agent. AL-38022A potently stimulated functional responses via native and cloned rat (EC50 range: 1.9-22.5 nM) and human (EC50 range: 0.5-2.2 nM) 5-HT2 receptor subtypes including [Ca2+]i mobilization and tissue contractions with apparently similar potencies and intrinsic activities and was a full agonist at all 5-HT2 receptor subtypes.

Dopamine D3 receptor agonist 13a selectively targets the dopamine D3 receptor over dopamine D1, D2, and D4 receptors, with affinities (Ki values) of 0.14, 4,600, 2.85, and 756 nM, respectively. It also interacts with serotonin (5-HT) receptor subtypes 5-HT1A, 5-HT2A, 5-HT2B, and 5-HT2C, with Ki values of 6, 54, 1.47, and 252 nM, respectively. While acting as a partial agonist at dopamine D2 receptors (EC50 = 2.26 nM in a G protein recruitment assay), it serves as an antagonist at dopamine D3 receptors (IC50 = 4.62 nM). Additionally, Dopamine D3 receptor agonist 13a, at a dose of 3 mg/kg, has been shown to reduce cocaine self-administration in rats.

Rec 15/2615 is an antagonist of α1B-adrenergic receptors (α1B-ARs; Ki = 0.45 nM for the recombinant human receptor).1 It selectively inhibits α1B-ARs over α1A-, α1D-, and α1L-ARs (Kis = 7.59, 10.23, and 49 nM, respectively). Rec 15/2615 inhibits norepinephrine-induced contractions of isolated rabbit prostate and urethral strips (Kis = 100 and 316.2 nM, respectively), as well as reduces norepinephrine-induced contractions of chloroethylclonidine-precontracted isolated rabbit aortic rings (Ki = 50 nM).2 It decreases diastolic blood pressure (ED25 = 183 μg/kg, i.v.) and increases intracavernous pressure in anesthetized dogs when administered intracavernously at doses ranging from 30 and 1,000 μg/kg.1,2 |1. Sironi, G., Colombo, D., Poggesi, E., et al. Effects of intracavernous administration of selective antagonists of α1-adrenoceptor subtypes on erection in anesthetized rats and dogs. J. Pharmacol. Exp. Ther. 292(3), 974-981 (2000).|2. Testa, R., Guarneri, L., Angelico, P., et al. Pharmacological characterization of the uroselective alpha-1 antagonist Rec 15/2739 (SB 216469): Role of the alpha-1L adrenoceptor in tissue selectivity, part II. J. Pharmacol. Exp. Ther. 281(3), 1284-1293 (1997).

RX821002 is a potent and selective antagonist of α2-adrenoceptor with low affinity for imidazoline sites. RX821002 displays selectivity for the α2D over the α2A subtypes (pKd values are 9.7 and 8.2 respectively).

BMS-986169 is a GluN2B Receptor Negative Allosteric Modulator. BMS-986169 showed a high binding affinity for the GluN2B subunit allosteric modulatory site (Ki: 4.03-6.3 nM) and selectively inhibited GluN2B receptor function in Xenopus oocytes expressing h

High affinity and subtype selective α6β2 and α4β2 partial agonist (Ki values are 12 and 26nM for rat α6β2 and α4β2 receptors respectively). Has low affinity for α3β4 and α7 receptors (Ki values are 4.8 and 13 μM for human α3β4 and rat α7 receptors respectively). Stimulates dopamine release from striatal slices in vitro. Attenuates nicotine-induced self-administration and conditional place preference in rats. Sala et al (2013) CC4, a dimer of cytisine, is a selective partial agonist at α4β2/α6β2 nAChR with improved selectivity for tobacco smoking c Br.J.Pharmacol. 168 835 PMID:22957729 |Riganti et al (2005) Long-term exposure to the new nicotinic antagonist 1,2-bisN-cytisinylethane upregulates nicotinic receptor subtypes of SH-SY5Y human neuroblastoma cells. Br.J.Pharmacol. 146 1096 PMID:16273122 |Carbonnelle et al (2003) Nitrogen substitution modifies the activity of cytisine on neuronal nicotinic receptor subtypes. Eur.J.Pharmacol. 471 85 PMID:12818695

Prucalopride-13C-d3 is the 13C and deuterated compound of Prucalopride. Prucalopride has a CAS number of 179474-81-8. Prucalopride is a selective, high-affinity 5-HT4A/4B receptor agonist (Ki: 2.5/8 nM). It has >290-fold selectivity for 5-HT4A/4B receptor than other 5-HT receptor subtypes.

HDAC-IN -45, a small molecule HDAC inhibitor, was able to form hydrogen bonds with Y303 residues and exhibited anticancer effects. HDAC-IN-45 significantly inhibited HDAC1, HDAC2 and HDAC3 subtypes with their IC50 values of 0.108, 0.585 and 0.563 μM, respectively.