Histone cluster 1 H2B Activators
Chemical activators of Histone cluster 1 H2B work primarily through the inhibition of histone deacetylases (HDACs), which are enzymes that remove acetyl groups from histone proteins, leading to a more compact chromatin structure and reduced transcriptional activity. These activators, including Trichostatin A, Sodium Butyrate, Vorinostat, Panobinostat, Valproic Acid, Romidepsin, Belinostat, Entinostat, Tacedinaline, Givinostat, Mocetinostat, and Chidamide, share a common mechanism of action in that they prevent the deacetylation of Histone cluster 1 H2B. This prevention leads to an accumulation of acetylation marks on the histones. The increased acetylation of Histone cluster 1 H2B alters the interaction between the histones and the DNA, weakening the binding and resulting in a less condensed form of chromatin. This more relaxed chromatin structure allows for the transcription machinery to access the DNA more easily, thus enabling the activation of transcriptional processes where Histone cluster 1 H2B is involved.
Each chemical activator, while sharing this fundamental mechanism, can exhibit particularities in its interaction with HDACs. Trichostatin A and Vorinostat, for example, are broad-spectrum HDAC inhibitors, affecting a wide range of HDAC enzymes. Others, like Entinostat, show selectivity towards class I HDACs. This selectivity may influence the extent and specific sites of Histone cluster 1 H2B acetylation. The acetylation marks provided by the action of these inhibitors serve as signals that recruit other proteins involved in transcriptional regulation, further facilitating the transcriptional activation. The precise patterns of acetylation introduced by these activators can consequently determine the specific genes that are expressed. Collectively, these chemical activators facilitate the transition of Histone cluster 1 H2B into an active state conducive to gene expression by promoting a chromatin environment that is accessible to the transcriptional machinery.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Trichostatin A | 58880-19-6 | sc-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 | |
Trichostatin A inhibits histone deacetylases (HDACs). Inhibition of HDAC leads to an increase in acetylation of histone proteins, including Histone cluster 1 H2B, which results in activation of their chromatin remodeling functions. Acetylation typically relaxes DNA-histone binding and allows for transcriptional activation. | ||||||
Sodium Butyrate | 156-54-7 | sc-202341 sc-202341B sc-202341A sc-202341C | 250 mg 5 g 25 g 500 g | $31.00 $47.00 $84.00 $222.00 | 19 | |
Sodium butyrate acts as an HDAC inhibitor, leading to the accumulation of acetylated histones, including Histone cluster 1 H2B. The hyperacetylation results in a more open chromatin structure and activation of transcriptional processes where this histone is involved. | ||||||
Suberoylanilide Hydroxamic Acid | 149647-78-9 | sc-220139 sc-220139A | 100 mg 500 mg | $133.00 $275.00 | 37 | |
Vorinostat, also known as SAHA, functions as an HDAC inhibitor, increasing the acetylation level of histones, including Histone cluster 1 H2B. This hyperacetylation activates transcription by allowing chromatin expansion and facilitating transcription factor access. | ||||||
Panobinostat | 404950-80-7 | sc-208148 | 10 mg | $200.00 | 9 | |
Panobinostat is a potent HDAC inhibitor that leads to the hyperacetylation of histone proteins such as Histone cluster 1 H2B. This activation of histones promotes a relaxed chromatin state conducive to active transcription. | ||||||
Valproic Acid | 99-66-1 | sc-213144 | 10 g | $87.00 | 9 | |
Valproic acid operates as an HDAC inhibitor, resulting in the hyperacetylation of histones. This chemical activation of Histone cluster 1 H2B by acetylation alters the interaction with DNA, promoting transcriptional activation. | ||||||
Romidepsin | 128517-07-7 | sc-364603 sc-364603A | 1 mg 5 mg | $218.00 $634.00 | 1 | |
Romidepsin is an HDAC inhibitor that promotes acetylation of histones, including Histone cluster 1 H2B, facilitating transcriptional activation by loosening the chromatin structure. | ||||||
Belinostat | 414864-00-9 | sc-269851 sc-269851A | 10 mg 100 mg | $156.00 $572.00 | ||
Belinostat is another HDAC inhibitor that causes increased acetylation of histone proteins. The resulting activation of Histone cluster 1 H2B changes the chromatin architecture to a state more amenable to transcription. | ||||||
MS-275 | 209783-80-2 | sc-279455 sc-279455A sc-279455B | 1 mg 5 mg 25 mg | $24.00 $90.00 $212.00 | 24 | |
Entinostat selectively inhibits class I HDACs, leading to the acetylation and activation of histone proteins such as Histone cluster 1 H2B, which in turn supports transcriptional activation. | ||||||
CI 994 | 112522-64-2 | sc-205245 sc-205245A | 10 mg 50 mg | $99.00 $536.00 | 1 | |
Tacedinaline inhibits HDAC, promoting acetylation and activation of histone proteins, including Histone cluster 1 H2B. This acetylation facilitates transcriptional activation by altering the chromatin structure. | ||||||
ITF2357 | 732302-99-7 | sc-364513 sc-364513A | 5 mg 50 mg | $340.00 $1950.00 | ||
Givinostat is an HDAC inhibitor that increases histone acetylation, including that of Histone cluster 1 H2B, which is associated with the activation of transcriptional activity due to changes in chromatin structure. | ||||||