Date published: 2026-5-30

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MYL9 Activators

Common MYL9 Activators include, but are not limited to Histamine, free base CAS 51-45-6, Angiotensin II, Human CAS 4474-91-3, D-erythro-Sphingosine-1-phosphate CAS 26993-30-6, PMA CAS 16561-29-8 and U-46619 CAS 56985-40-1.

MYL9, also known as myosin light chain 9, is a pivotal component in the intricate machinery of muscle contraction. Specifically, MYL9 is part of the myosin II complex in smooth muscle cells, where it functions as a regulatory light chain. Myosin, a motor protein, interacts with actin filaments to produce contractile force in muscle cells. The phosphorylation state of MYL9 plays a crucial role in regulating this interaction. When MYL9 is phosphorylated, myosin's actin-activated ATPase activity is increased, promoting muscle contraction. Conversely, dephosphorylation of MYL9 leads to muscle relaxation. Thus, MYL9 stands at the crossroads of muscle contractility, acting as a regulatory switch that controls the transition between contraction and relaxation based on its phosphorylation status.

Activators of MYL9 are molecules or compounds that promote the activity or expression of the MYL9 protein. These activators might function by enhancing the transcription or translation of the MYL9 gene, stabilizing the MYL9 protein structure, or promoting its phosphorylation. The presence of MYL9 activators can influence muscle contractility, amplifying or refining the cellular responses linked to muscle tension and movement. Venturing into the domain of MYL9 activators provides a comprehensive understanding of the molecular gears that drive muscle function. As research continues to delve into the vast intricacies of muscle biology and cellular signaling, the role of MYL9 and its activators stands as a beacon, highlighting the sophisticated molecular dance that underpins the rhythmic ebb and flow of muscle activity.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Histamine, free base

51-45-6sc-204000
sc-204000A
sc-204000B
1 g
5 g
25 g
$94.00
$283.00
$988.00
7
(1)

Histamine can increase intracellular calcium levels, which may lead to activation of MLCK and subsequent phosphorylation of MYL9.

Angiotensin II, Human

4474-91-3sc-363643
sc-363643A
sc-363643B
sc-363643C
1 mg
5 mg
25 mg
100 mg
$51.00
$100.00
$310.00
$690.00
3
(1)

This peptide hormone can induce vasoconstriction and increase intracellular calcium, potentially influencing MLCK and MYL9 phosphorylation.

D-erythro-Sphingosine-1-phosphate

26993-30-6sc-201383
sc-201383D
sc-201383A
sc-201383B
sc-201383C
1 mg
2 mg
5 mg
10 mg
25 mg
$165.00
$322.00
$570.00
$907.00
$1727.00
7
(1)

S1P is involved in various cellular processes, including actin cytoskeleton rearrangement, which might involve MYL9.

Thrombin from human plasma

9002-04-4sc-471713
100 U
$235.00
(0)

By increasing intracellular calcium and activating protease-activated receptors (PARs), thrombin can influence MLCK and MYL9 phosphorylation.

PMA

16561-29-8sc-3576
sc-3576A
sc-3576B
sc-3576C
sc-3576D
1 mg
5 mg
10 mg
25 mg
100 mg
$41.00
$132.00
$214.00
$500.00
$948.00
119
(6)

PMA can activate PKC, which in turn can influence MYL9 phosphorylation.

U-46619

56985-40-1sc-201242
sc-201242A
1 mg
10 mg
$245.00
$1301.00
40
(4)

This compound can increase intracellular calcium levels, potentially influencing MLCK and subsequent MYL9 phosphorylation.

Nocodazole

31430-18-9sc-3518B
sc-3518
sc-3518C
sc-3518A
5 mg
10 mg
25 mg
50 mg
$59.00
$85.00
$143.00
$247.00
38
(2)

This agent disrupts microtubules and can lead to cell contraction processes involving MYL9.