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ht31 peptide Ht31 is a peptide with an amphipathic helix motif

Published October Oct 17, 2026 5:16 PM

In the evolving landscape of biochemical research, the Ht31 peptide has established itself as an indispensable tool for scientists investigating the intricate signaling pathways within cellular environments. As someone deeply interested in the mechanics of molecular biology, I have spent considerable time analyzing the literature surrounding this specific sequence. The Ht31 peptide is widely recognized for its ability to serve as a competitive inhibitor of the interaction between Protein Kinase A (PKA) and A-kinase anchoring proteins (AKAPs).

The Biochemical Profile of Ht31

The Ht31 peptide is derived from amino acids 493–515 of the human thyroid AKAP protein. A defining characteristic of this molecule is its amphipathic helix motif, which allows it to effectively compete for RII-AKAP binding sites. By disrupting these subcellular localizations, researchers can gain granular insight into how PKA signaling is regulated.

A significant development in this field is the creation of st-Ht31, which is a stearated form of the peptide Ht-31. This modification is crucial because st-Ht31 is a cell-permeable stearated peptide, allowing it to bypass the need for complex delivery mechanisms when introduced into experimental models. Because st-Ht31 is a membrane-permeable peptide inhibitor of PKA anchoring, it has become the gold standard for studies requiring intracellular access.

Research Applications and Findings

The utility of this tool in biological research is vast. For instance, Ht31 has been utilized to examine how HT31 not only blocked the PKA-induced phosphorylation of RhoA but also prevented the downstream inhibition of RhoA activation. This specific interference demonstrates the pe Ht31 peptide inhibited inflammatory pain by blocking ptide's precision in modulating kinase-mediated pathways.

Furthermore, the Ht31 peptide h st-Ht31 | 188425-80-1 as demonstrated notable efficacy in specific physiological models. Studies have shown that St-Ht31 peptide inhibited CFA-induced inflammatory pain by interfering with AKAP/PKA interactions within spinal dorsal horn neurons. In other experimental contexts, it has been observed that the molecule is able to reverse foam cell formation and restore the metabolic health of macrophages, highlighting its potential utility in metab by S Vijayaraghavan·1997·Cited by 313—In this report we useS-Ht31, a cell-permeant anchoring inhibitor peptide, to study the role of PKA anchoring in sperm. Our analysis of three Read more olic research.

Comparative Tools: Ht31 vs. Ht31P

When conducting experimental controls, it is standard practice to utilize InCELLect St-Ht31P Control Peptide. While the active Ht31 sequence disrupts PKA anchoring, the Ht31P variant is designed to be a non-binding control. Researchers often compare these two t st-Ht31 | PKA Anchoring Inhibitor o ensure that observed effects are indeed due to the disruption of the PKA-AKAP complex rather than non-specific interactions. It is important to note that while the active peptide is highly effective, users should be aware that st-Ht31 P has been withdrawn from some commerci st-Ht31 is a cell-permeable stearated peptidederived from the amphipathic helix domain from A-kinase anchoring proteins (AKAPs), which binds protein kinase Read more al channels, making st-Ht31 P | CAS 252869-81-1 | st-Ht31P the sourcing of reliable, high-purity peptides a critical step in project planning.

Technical Considerations for Researchers

When evaluating the structure of these molecules, researchers often point out that Ht31 and AKAP79 peptides are ordered and overlay with each other well, providing a structural basis for their high potency. Whether utilizing Ad-mediated Ht31 peptide expression for gene transfer or direct application of the synthesized peptide, the goal remains the same: to isolate the regulatory functions of PKA.

As a tool that st-Ht31 is a stearated form of the peptide Ht-31. Inhibits the interaction between the RII subunits of cAMP-dependent PKA and A-kinase anchoring protein Read more has emerged as a significant tool in biological research, the Ht31 peptide continues to facilitate breakthroughs in our understanding of cellular signaling. By acting as a specialized RII-binding peptide, it provides the precision necessary to dissect complex protein-protein interactions in a controlled, in vitro or in vivo setting.

*Disclaimer: This information is for educational and research purposes only. These products are intended for laboratory research use and are not for human consumption or medical diagnosis.*

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