Date published: 2026-4-1

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Ly-49H Inhibitors

Chemical inhibitors of Ly-49H work by targeting various signaling pathways and enzymes that are essential for the activation and function of this natural killer (NK) cell receptor protein. For example, Cyclosporin A disrupts the immune response where Ly-49H is involved by inhibiting calcineurin, a phosphatase pivotal for T-cell activation, indirectly leading to the inhibition of Ly-49H's regulatory roles. Similarly, dasatinib and PP2 target Src family kinases, which are key signaling molecules in the pathways that activate Ly-49H. By inhibiting these kinases, both dasatinib and PP2 disrupt the signal transduction essential for Ly-49H function in NK cells. LY294002 and Wortmannin, both phosphoinositide 3-kinase (PI3K) inhibitors, obstruct the PI3K-dependent pathways that contribute to the activation of Ly-49H, thereby inhibiting its role in NK cell cytotoxicity. The MAPK pathway inhibitors, PD 98059 and U0126, inhibit the MAPK/ERK signaling pathway that is implicated in the regulatory functions of NK cells where Ly-49H plays a role, leading to its functional inhibition. SB203580 and SP600125 inhibit p38 MAP kinase and c-Jun N-terminal kinase (JNK), respectively, both of which are involved in NK cell activation. By obstructing these kinases, SB203580 and SP600125 lead to the functional inhibition of Ly-49H by limiting its activation signals. BAY 11-7082 targets NF-kB signaling, which is important for the regulation of immune response genes. Its inhibition results in impaired signaling pathways that are necessary for Ly-49H function. Finally, Chelerythrine chloride and Go 6983 inhibit protein kinase C (PKC), which is involved in NK cell function regulation. The inhibition of PKC by these chemicals leads to the disruption of critical signaling pathways for Ly-49H activity, resulting in its functional inhibition within the NK cells.

Items 1 to 10 of 12 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Cyclosporin A

59865-13-3sc-3503
sc-3503-CW
sc-3503A
sc-3503B
sc-3503C
sc-3503D
100 mg
100 mg
500 mg
10 g
25 g
100 g
$63.00
$92.00
$250.00
$485.00
$1035.00
$2141.00
69
(5)

Cyclosporin A inhibits calcineurin, which is essential for the activation of T-cells. By inhibiting calcineurin, Cyclosporin A indirectly inhibits the activity of Ly-49H, which is involved in the immune response, as it may regulate natural killer (NK) cell function in response to activating signals.

Dasatinib

302962-49-8sc-358114
sc-358114A
25 mg
1 g
$70.00
$145.00
51
(1)

Dasatinib is a Src family kinase inhibitor. Ly-49H is associated with signaling pathways involving Src family kinases. Inhibition of these kinases by Dasatinib can lead to the functional inhibition of Ly-49H by disrupting its associated signaling pathways essential for its function in NK cells.

PP 2

172889-27-9sc-202769
sc-202769A
1 mg
5 mg
$94.00
$227.00
30
(1)

PP2 is another inhibitor of Src family kinases. By inhibiting Src family kinases, PP2 disrupts signal transduction pathways that are necessary for the functional activation of Ly-49H in NK cells, resulting in the inhibition of its activity.

LY 294002

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

LY294002 is a phosphoinositide 3-kinase (PI3K) inhibitor. Since PI3K signaling is crucial for NK cell activation and function, inhibition of PI3K by LY294002 can lead to functional inhibition of Ly-49H by impairing the signaling pathways that facilitate its role in NK cell cytotoxicity.

Wortmannin

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

Wortmannin is also a PI3K inhibitor and functions similarly to LY294002. It disrupts the PI3K-dependent signaling pathways that are necessary for the activation and function of Ly-49H in NK cells, thus functionally inhibiting Ly-49H.

PD 98059

167869-21-8sc-3532
sc-3532A
1 mg
5 mg
$40.00
$92.00
212
(2)

PD 98059 is an inhibitor of mitogen-activated protein kinase (MAPK) kinase, which is upstream of extracellular signal-regulated kinase (ERK). ERK is implicated in NK cell regulatory functions, and by inhibiting MAPK/ERK signaling, PD 98059 can inhibit the function of Ly-49H.

U-0126

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

U0126 is another MAPK/ERK inhibitor, which can lead to the functional inhibition of Ly-49H by blocking the MAPK/ERK signaling pathway that contributes to the activation and function of Ly-49H in NK cells.

SB 203580

152121-47-6sc-3533
sc-3533A
1 mg
5 mg
$90.00
$349.00
284
(5)

SB203580 is a p38 MAP kinase inhibitor, which plays a role in NK cell activation. Inhibition of p38 MAP kinase by SB203580 can impair the signaling pathways that are necessary for the activation and hence the function of Ly-49H.

SP600125

129-56-6sc-200635
sc-200635A
10 mg
50 mg
$40.00
$150.00
257
(3)

SP600125 is an inhibitor of c-Jun N-terminal kinase (JNK), which is involved in the regulation of immune responses. By inhibiting JNK, SP600125 can disrupt signaling pathways that contribute to the functional activity of Ly-49H in NK cells.

BAY 11-7082

19542-67-7sc-200615B
sc-200615
sc-200615A
5 mg
10 mg
50 mg
$62.00
$85.00
$356.00
155
(1)

BAY 11-7082 inhibits NF-kB activation by blocking phosphorylation of IκBα. Since NF-kB is a transcription factor that regulates the expression of genes involved in immune responses, its inhibition can result in the functional inhibition of Ly-49H by impairing necessary immune signaling pathways.