Date published: 2026-4-1

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MUP21 Inhibitors

MUP21 inhibitors are a class of compounds that target Major Urinary Protein 21 (MUP21), a protein involved in the binding and transport of pheromones, particularly in rodent species. MUP21, as part of the broader MUP family, plays a crucial role in the communication systems of animals by binding small, hydrophobic molecules like pheromones, which are secreted in urine. These proteins allow for the slow release of these pheromones into the environment, facilitating signaling mechanisms that influence social behaviors such as territory marking, reproductive behavior, and individual recognition. MUP21 inhibitors function by blocking the interaction between MUP21 and its pheromone ligands, thus disrupting the natural processes that regulate pheromone dissemination and perception.

In research contexts, MUP21 inhibitors are useful tools for investigating the molecular and structural dynamics of pheromone-binding proteins. By inhibiting MUP21's ability to bind pheromones, researchers can explore the specific role of this protein in social and behavioral processes within animal populations, particularly rodents. This allows scientists to study how the inhibition of MUP21 affects pheromone-related behaviors, providing insights into the complex chemical signaling pathways that underlie social interactions. Additionally, MUP21 inhibitors contribute to the understanding of the structural biology of MUP proteins, helping to define the critical regions and residues involved in ligand binding. Through such studies, these inhibitors can elucidate the broader biological significance of MUPs and their interaction with chemical signals in the environment.

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Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Pertussis Toxin (islet-activating protein)

70323-44-3sc-200837
50 µg
$451.00
3
(1)

Inhibits GPCR signaling crucial for Mup21's predicted odorant binding activity. Pertussis Toxin disrupts GPCR signaling, indirectly inhibiting Mup21 in the extracellular space where the protein is active.

Batimastat

130370-60-4sc-203833
sc-203833A
1 mg
10 mg
$179.00
$377.00
24
(1)

Targets Matrix Metalloproteinases (MMPs), influencing Extracellular Matrix (ECM) remodeling. Indirectly inhibits Mup21's odorant binding by modulating ECM, impacting the extracellular space where Mup21 is predicted to be active.

Cyclopiazonic Acid

18172-33-3sc-201510
sc-201510A
10 mg
50 mg
$176.00
$624.00
3
(1)

Inhibits SERCA (Sarco/Endoplasmic Reticulum Calcium ATPase), disrupting intracellular calcium homeostasis. Indirectly inhibits Mup21's odorant binding by affecting calcium-dependent signaling pathways in the extracellular space.

Ionomycin, free acid

56092-81-0sc-263405
sc-263405A
1 mg
5 mg
$96.00
$264.00
2
(2)

Induces calcium influx by facilitating ion transport across the cell membrane. Ionomycin disrupts intracellular calcium homeostasis, indirectly inhibiting Mup21's odorant binding by influencing calcium-dependent signaling pathways in the extracellular space.

LY 294002

154447-36-6sc-201426
sc-201426A
5 mg
25 mg
$123.00
$400.00
148
(1)

Inhibits PI3K/AKT pathway associated with Mup21. LY294002 indirectly inhibits odorant binding by disrupting PI3K/AKT signaling, impacting the extracellular space where Mup21 is predicted to exert its function.

Thapsigargin

67526-95-8sc-24017
sc-24017A
1 mg
5 mg
$136.00
$446.00
114
(2)

Blocks SERCA, disrupting intracellular calcium homeostasis. Thapsigargin indirectly inhibits Mup21's odorant binding by affecting calcium-dependent signaling pathways in the extracellular space.

TAPI-1

171235-71-5sc-222337
1 mg
$669.00
15
(1)

Inhibits ADAM (A Disintegrin And Metalloproteinase) family enzymes. TAPI-1 influences Extracellular Matrix (ECM) remodeling, indirectly inhibiting Mup21's odorant binding by modulating the ECM in the extracellular space.

U-0126

109511-58-2sc-222395
sc-222395A
1 mg
5 mg
$64.00
$246.00
136
(2)

Targets the MEK/ERK pathway influencing odorant binding activity. U0126 disrupts MEK/ERK signaling, indirectly inhibiting Mup21's predicted function in the extracellular space.

Wortmannin

19545-26-7sc-3505
sc-3505A
sc-3505B
1 mg
5 mg
20 mg
$67.00
$223.00
$425.00
97
(3)

Irreversible PI3K inhibitor affecting Mup21. Wortmannin disrupts PI3K/AKT signaling, indirectly inhibiting Mup21's odorant binding activity in the extracellular space.

NSC 23766

733767-34-5sc-204823
sc-204823A
10 mg
50 mg
$151.00
$609.00
75
(4)

Specifically inhibits Rac1, a GTPase involved in cytoskeletal reorganization. NSC 23766 indirectly inhibits Mup21's odorant binding by affecting GTPase signaling in the extracellular space.