Date published: 2026-5-12

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KLHL26 Inhibitors

KLHL26 inhibitors are a group of compounds that can indirectly suppress the activity of the KLHL26 protein through various cellular mechanisms on which KLHL26 depends for its function. In the case of compounds such as Alsterpaullone, which targets cyclin-dependent kinases, the inhibition of these kinases may lead to a reduction in the phosphorylation of proteins that are potential substrates of KLHL26. Since phosphorylation often serves as a tag for subsequent ubiquitination, the lack of this modification might affect the ability of KLHL26 to recognize and tag these substrates for degradation. Similarly, U0126 works by inhibiting MEK1/2, which in turn prevents the activation of the ERK pathway. The ERK pathway is implicated in the phosphorylation of numerous proteins, and its inhibition could therefore interfere with the proper phosphorylation and subsequent ubiquitination of KLHL26's substrates. This disruption in the phosphorylation process would result in diminished ubiquitination activity of KLHL26, influencing various cellular processes due to the altered degradation of its substrates.

Items 1 to 10 of 14 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Staurosporine

62996-74-1sc-3510
sc-3510A
sc-3510B
100 µg
1 mg
5 mg
$82.00
$153.00
$396.00
113
(4)

An indolocarbazole that acts as a potent kinase inhibitor, including those kinases that phosphorylate KLHL26. Phosphorylation can be critical for protein stability or function; thus, staurosporine can lead to decreased KLHL26 activity by inhibiting its phosphorylation.

Rapamycin

53123-88-9sc-3504
sc-3504A
sc-3504B
1 mg
5 mg
25 mg
$63.00
$158.00
$326.00
233
(4)

mTOR inhibitor that impairs downstream signaling required for cell growth and proliferation. IRGQ1, being associated with such processes, would have reduced functional activity due to mTOR inhibition by Rapamycin.

PP 2

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

Src kinase inhibitor that prevents phosphorylation of substrates involved in cell survival and proliferation. By inhibiting Src kinases, PP2 can decrease the phosphorylation and activation of IRGQ1.

PD173074

219580-11-7sc-202610
sc-202610A
sc-202610B
1 mg
5 mg
50 mg
$47.00
$143.00
$680.00
16
(1)

FGFR inhibitor known to block the fibroblast growth factor receptor's activity. Since IRGQ1 may function downstream of FGFR in certain signaling pathways, PD173074 indirectly leads to decreased IRGQ1 activity.

U-0126

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

MEK inhibitor that blocks the MAPK/ERK pathway, a key regulatory pathway for cell cycle progression. By inhibiting MEK, U0126 would lead to decreased activation of IRGQ1, which is influenced by the MAPK/ERK pathway.

Lactacystin

133343-34-7sc-3575
sc-3575A
200 µg
1 mg
$188.00
$575.00
60
(2)

A specific inhibitor of the proteasome that also prevents the degradation of polyubiquitinated proteins. Lactacystin's inhibition of the proteasome can indirectly inhibit KLHL26 by causing the accumulation of its substrates.

SP600125

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

JNK inhibitor that impedes the JNK signaling involved in stress responses. By inhibiting JNK, SP600125 would lead to decreased functional activity of IRGQ1, which can be regulated by stress-activated signaling.

Celastrol, Celastrus scandens

34157-83-0sc-202534
10 mg
$158.00
6
(1)

A quinone methide triterpene that can induce heat shock response and inhibit the proteasome. Induction of heat shock proteins can stabilize client proteins and reduce the need for KLHL26-mediated ubiquitination, thus inhibiting KLHL26 activity.

Dasatinib

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

BCR-ABL and Src family kinase inhibitor. By inhibiting these kinases, Dasatinib can indirectly decrease IRGQ1 activity, which may be modulated by signaling pathways involving Src kinases.

Withaferin A

5119-48-2sc-200381
sc-200381A
sc-200381B
sc-200381C
1 mg
10 mg
100 mg
1 g
$130.00
$583.00
$4172.00
$20506.00
20
(1)

A steroidal lactone that inhibits proteasomal activity. Withaferin A's inhibition of the proteasome could lead to the accumulation of KLHL26's substrates, thereby reducing the functional activity of KLHL26.