Date published: 2026-5-4

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Qa-2 Activators

Qa-2 is a fascinating member of the non-classical major histocompatibility complex (MHC) class I molecules found in mice. These molecules are known for their limited polymorphism and tissue-specific expression compared to classical MHC class I molecules. Qa-2 has garnered attention in the scientific community due to its intriguing role in the immune system, which is thought to involve the regulation of certain immune responses and possibly impacting reproductive success. The expression of Qa-2 is not static and can be influenced by various biochemical signals within the cellular environment. Understanding the factors that induce the expression of Qa-2 can offer insights into the fundamental mechanisms that govern immune regulation and the complex interplay between different cellular pathways.

Several chemical compounds have been identified as potential activators that can induce the expression of Qa-2. For instance, Lipopolysaccharide (LPS), a component of the outer membrane of gram-negative bacteria, can initiate a strong immune response which may include the upregulation of Qa-2 expression. Similarly, Retinoic acid, a metabolite of vitamin A, is known to play a role in the differentiation of immune cells and could lead to increased expression of Qa-2. Sodium butyrate, a short-chain fatty acid, acts as a histone deacetylase inhibitor, potentially creating a conducive environment for the transcription of the Qa-2 gene. On the other hand, Phorbol 12-myristate 13-acetate (PMA) is a diester of phorbol and is known for its role in activating protein kinase C, which may lead to a cascade of events culminating in the induction of Qa-2. Environmental stressors like heat shock are also notable, as they trigger a cellular stress response that could potentially include the upregulation of Qa-2 as part of a broader adaptive response. These activators and their associated pathways underscore the complexity of the regulatory network that influences Qa-2 expression, providing a glimpse into the sophisticated nature of immune system modulation.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Lipopolysaccharide, E. coli O55:B5

93572-42-0sc-221855
sc-221855A
sc-221855B
sc-221855C
10 mg
25 mg
100 mg
500 mg
$98.00
$171.00
$425.00
$1560.00
12
(2)

This bacterial endotoxin can trigger an innate immune response leading to the upsurge in expression of Qa-2 as part of the body's defense mechanism.

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, a derivative of vitamin A, can initiate differentiation in immune cells, concomitantly elevating the expression levels of Qa-2.

5-Azacytidine

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

As a DNA methylation inhibitor, 5-Azacytidine can promote the transcription of previously silenced genes, potentially including those coding for Qa-2.

(−)-Epigallocatechin Gallate

989-51-5sc-200802
sc-200802A
sc-200802B
sc-200802C
sc-200802D
sc-200802E
10 mg
50 mg
100 mg
500 mg
1 g
10 g
$43.00
$73.00
$126.00
$243.00
$530.00
$1259.00
11
(1)

Epigallocatechin Gallate can enact transcriptional changes through its antioxidant properties, potentially leading to a surge in Qa-2 expression.

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, by inhibiting histone deacetylases, can facilitate a more transcriptionally active chromatin state, which may elevate Qa-2 gene expression.

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, by activating protein kinase C, can catalyze a signaling cascade that culminates in the augmented transcription of genes including those for Qa-2.

Dexamethasone

50-02-2sc-29059
sc-29059B
sc-29059A
100 mg
1 g
5 g
$91.00
$139.00
$374.00
36
(1)

Dexamethasone, a glucocorticoid, can activate glucocorticoid response elements within DNA, potentially leading to the upsurge in Qa-2 expression.