Date published: 2026-5-4

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Qa-2 Inhibitors

Qa-2 inhibitors are a class of chemical compounds that specifically target the Qa-2 molecule, a non-classical MHC class Ib protein found in mice. Unlike classical MHC class I molecules, which are highly polymorphic and widely expressed, Qa-2 belongs to a group of molecules that have more limited expression and reduced polymorphism. Qa-2 plays a role in immune regulation, particularly in the presentation of antigens to certain types of immune cells, such as natural killer (NK) cells and cytotoxic T lymphocytes (CTLs). It is also involved in modulating immune responses and immune cell interactions. Qa-2 inhibitors work by interfering with the normal function of the Qa-2 molecule, either by disrupting its ability to present antigens or by preventing its interaction with immune cells.

The mechanisms through which Qa-2 inhibitors operate can vary. Some compounds may bind directly to the Qa-2 protein, blocking the conformational changes required for antigen binding or presentation. Others may inhibit the transport of Qa-2 molecules to the cell surface, reducing their availability for immune surveillance. Additionally, some Qa-2 inhibitors may target the signaling pathways associated with Qa-2 expression, thereby modulating the molecule's expression levels. By inhibiting Qa-2 function, these compounds provide valuable tools for studying the role of non-classical MHC class Ib molecules in immune regulation, as well as the specific interactions between Qa-2 and immune cells. The study of Qa-2 inhibitors sheds light on the unique properties of non-classical MHC molecules and how they contribute to immune system modulation.

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Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

5-Azacytidine

320-67-2sc-221003
500 mg
$280.00
4
(1)

5-Azacytidine may induce hypomethylation of the Qa-2 gene promoter, leading to the suppression of its transcriptional initiation and a subsequent decrease in Qa-2 protein levels.

Trichostatin A

58880-19-6sc-3511
sc-3511A
sc-3511B
sc-3511C
sc-3511D
1 mg
5 mg
10 mg
25 mg
50 mg
$152.00
$479.00
$632.00
$1223.00
$2132.00
33
(3)

Trichostatin A could promote hyperacetylation of histones at the Qa-2 locus, resulting in transcriptional repression and decreased synthesis of the Qa-2 protein.

Sodium Butyrate

156-54-7sc-202341
sc-202341B
sc-202341A
sc-202341C
250 mg
5 g
25 g
500 g
$31.00
$47.00
$84.00
$222.00
19
(3)

Sodium butyrate's inhibitory action on histone deacetylases may result in altered chromatin conformation at the Qa-2 gene, culminating in a reduction of its mRNA and protein expression.

Valproic Acid

99-66-1sc-213144
10 g
$87.00
9
(1)

Valproic acid may lead to an enriched acetylation state of histone proteins surrounding the Qa-2 gene, thereby reducing the rate of its transcription and lowering the production of the Qa-2 protein.

Mithramycin A

18378-89-7sc-200909
1 mg
$55.00
6
(1)

Mithramycin A could bind to specific DNA sequences upstream of the Qa-2 gene, obstructing the binding of essential transcriptional activators and leading to diminished Qa-2 protein synthesis.

Rapamycin

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

Rapamycin can lead to the deactivation of the mTOR signaling pathway, which may be necessary for the transcription of Qa-2, resulting in the downregulation of its expression.

5-Aza-2′-Deoxycytidine

2353-33-5sc-202424
sc-202424A
sc-202424B
25 mg
100 mg
250 mg
$218.00
$322.00
$426.00
7
(1)

5-Aza-2′-Deoxycytidine might cause DNA demethylation at the Qa-2 promoter, which can lead to transcriptional silencing and a consequent decrease in Qa-2 protein expression.

Retinoic Acid, all trans

302-79-4sc-200898
sc-200898A
sc-200898B
sc-200898C
500 mg
5 g
10 g
100 g
$66.00
$325.00
$587.00
$1018.00
28
(1)

Retinoic acid could bind to retinoid acid receptors that interact with the promoter region of the Qa-2 gene, leading to transcriptional repression and reduced Qa-2 expression.

Curcumin

458-37-7sc-200509
sc-200509A
sc-200509B
sc-200509C
sc-200509D
sc-200509F
sc-200509E
1 g
5 g
25 g
100 g
250 g
1 kg
2.5 kg
$37.00
$69.00
$109.00
$218.00
$239.00
$879.00
$1968.00
47
(1)

Curcumin might disrupt critical transcription factor interactions at the Qa-2 gene promoter, resulting in decreased transcriptional activity and lower levels of Qa-2 protein.

Resveratrol

501-36-0sc-200808
sc-200808A
sc-200808B
100 mg
500 mg
5 g
$80.00
$220.00
$460.00
64
(2)

Resveratrol may interfere with the transcriptional machinery necessary for Qa-2 gene expression, thereby decreasing the overall production of the Qa-2 protein.