Date published: 2026-2-14

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Tropomyosin 4 Inhibitors

Tropomyosin 4 inhibitors are a class of chemical compounds designed to specifically target and inhibit the function of the tropomyosin 4 protein, a member of the tropomyosin family involved in regulating the actin cytoskeleton. Tropomyosin 4 plays a critical role in stabilizing actin filaments and controlling their interactions with other actin-binding proteins. This protein is important in cellular processes such as maintaining cell shape, supporting intracellular transport, and modulating cell movement. By binding to actin filaments, tropomyosin 4 helps to regulate the assembly and disassembly of the cytoskeleton, which is crucial for cell structure and mechanical integrity. Inhibitors of tropomyosin 4 disrupt these interactions, impairing the protein's ability to stabilize actin filaments and altering cytoskeletal dynamics.

Chemically, tropomyosin 4 inhibitors are designed to interact with specific regions of the protein that are responsible for its binding to actin. These inhibitors may block the actin-binding domains of tropomyosin 4, preventing it from associating with actin filaments and regulating their stability. The design of these compounds often emphasizes specificity, ensuring that they selectively target tropomyosin 4 without affecting other tropomyosin isoforms or actin-regulatory proteins. Researchers studying tropomyosin 4 inhibitors aim to better understand the unique roles that this isoform plays in cytoskeletal regulation and how inhibiting its activity affects broader cellular processes like migration, adhesion, and mechanical response. By examining the effects of these inhibitors, scientists can gain insights into the molecular mechanisms that control actin filament dynamics and how proteins like tropomyosin 4 contribute to maintaining cellular architecture and function.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Latrunculin A, Latrunculia magnifica

76343-93-6sc-202691
sc-202691B
100 µg
500 µg
$265.00
$815.00
36
(2)

Latrunculin A may inhibit TPM4 expression by disrupting actin polymerization. Inhibition of actin polymerization could lead to destabilization of actin filaments, subsequently downregulating the need for TPM4 in stabilizing actin filaments.

(±)-Blebbistatin

674289-55-5sc-203532B
sc-203532
sc-203532A
sc-203532C
sc-203532D
5 mg
10 mg
25 mg
50 mg
100 mg
$183.00
$313.00
$464.00
$942.00
$1723.00
7
(1)

Blebbistatin may inhibit TPM4 expression by acting as a selective inhibitor of myosin II ATPase activity. Inhibition of myosin II ATPase activity could lead to a reduction in actin-myosin interaction, subsequently reducing the need for TPM4 in regulating muscle contraction.

Cytochalasin D

22144-77-0sc-201442
sc-201442A
1 mg
5 mg
$165.00
$486.00
64
(4)

Cytochalasin D may inhibit TPM4 expression by disrupting actin polymerization. Inhibition of actin polymerization could lead to destabilization of actin filaments, subsequently downregulating the need for TPM4 in stabilizing actin filaments.

CK 666

442633-00-3sc-361151
sc-361151A
10 mg
50 mg
$321.00
$1040.00
5
(0)

CK-666 may inhibit TPM4 expression by acting as an inhibitor of the Arp2/3 complex. Inhibition of the Arp2/3 complex could lead to disruption in actin filament branching and dynamics, subsequently downregulating the need for TPM4 in stabilizing actin filaments.

Y-27632, free base

146986-50-7sc-3536
sc-3536A
5 mg
50 mg
$186.00
$707.00
88
(1)

Y-27632 may inhibit TPM4 expression by acting as a selective inhibitor of Rho-associated protein kinase (ROCK). Inhibition of ROCK could lead to a reduction in actin-myosin interaction and actin cytoskeleton organization, subsequently reducing the need for TPM4 in regulating muscle contraction.

CK-869

388592-44-7sc-507274
5 mg
$163.00
(0)

CK-869 may inhibit TPM4 expression by acting as an inhibitor of the Arp2/3 complex. Inhibition of the Arp2/3 complex could lead to disruption in actin filament branching and dynamics, subsequently downregulating the need for TPM4 in stabilizing actin filaments.

Jasplakinolide

102396-24-7sc-202191
sc-202191A
50 µg
100 µg
$184.00
$305.00
59
(1)

Jasplakinolide may inhibit TPM4 expression by stabilizing actin filaments, which may lead to a reduction in the requirement for TPM4 in stabilizing actin filaments.

SMIFH2

340316-62-3sc-507273
5 mg
$140.00
(0)

SMIFH2 may inhibit TPM4 expression by acting as an inhibitor of formin-dependent actin polymerization. Inhibition of formin-dependent actin polymerization could lead to a reduction in actin filament formation, subsequently downregulating the need for TPM4 in stabilizing actin filaments.

CK-689

170930-46-8sc-507371
25 mg
$312.00
(0)

CK-689 may inhibit TPM4 expression by acting as an inhibitor of the Arp2/3 complex. Inhibition of the Arp2/3 complex could lead to disruption in actin filament branching and dynamics, subsequently downregulating the need for TPM4 in stabilizing actin filaments.