In the world of peptide research, few molecules draw as much fascination as the vasoactive intestinal peptide structure. As someone who spends considerable time researching peptide sequences and their structural properties, I have found that understanding the architecture of these chains is essential for anyone looking into the biochemical foundations of neuropeptid Vasoactive intestinal peptide (22-28) - PubChem - NIH es.
The Molecular Architecture of VIP
When we look at the vasoactive intestinal peptide, we are examining a highly specific sequence. VIP is a peptide of 28 amino acid residues that plays a vital role as a neuromodulator. Its primary structure is remarkably consistent across various species, including human, porcine, and rat models.
From a chemical perspective, the vasoactive intestinal peptide (VIP is a linear polypeptide characterized by the molec by S Onoue·2008·Cited by 66—We review in this paper SAR studies of VIP for the identification of potent therapeutic agents, describe the development of selective and/or metabolically Read more ular formula C147H237N43O43S. It is often cited that VIP contains 28 amino acid residues with a molecular weight of 3326 (or approximately 3323.77 in its common salt form), which makes it a relatively compact yet functionally dense molecule.
The sequence itself—His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr—defines its biological activity. This 28 amino acid polypeptide belongs to the glucagon/secretin superfamily, which explains why it serves as a l Definition of vasoactive intestinal peptide - National Cancer Institute igand for class II G protein-coupled receptors.
Structural Variations and Research Fragments
In my experience analyzing peptide documentation, it is helpful to look at how specific fragments behave compared to the full-length molecule. For instance, the carboxy-terminal VIP fragment (such as VIP 6-28 or 10-28) is often utilized in laboratory settings to study receptor binding affinity.
Researchers frequently reference the vasoactive intestinal peptide (22-28) fragment or the Vasoactive Intestinal Peptide (10-28) variant to isolate specific interaction sites. These smaller segments are crucial when examining the structure of the neuropeptide, especially when investigating Vasoactive Intestinal Peptide (6-28) [69698-54-0] its role as a neurotransmitter or its interaction with VPAC1 and VPAC2 receptors.
Insights into Functional Distribution
Whether we refer to it as vasoactive intestinal polypeptide (VIP or simply VIP, the molecule is widely distributed throughout the human body. Its gene is mapped to human chromosome 6q25.2, and it is synthesized as a larger 170-amino-acid precursor before being cleaved into its active 28-residue form.
As VIP, a 28-amino-acid polypeptide, is secreted by cells throughout the intestinal tract and neural tissues, its stability and structural integrity are paramount. When studying the vasoactive intestinal peptide, it is important to note:
* Classification: Glu by RA Simon·2021·Cited by 16—Vasoactive intestinal polypeptide (VIP) is a neuroendocrine peptide distributed throughout the human body, including the CNS, where it is Read more cagon/secretin superfamily.
* Receptor Affinity: High affinity for VPAC receptors.
* Physical Form: Often provided as a TFA salt for research stability.
* Molecular Complexity: A 28-amino-acid chain requiring precise synthesis to maintain its helical structure.
Personal Perspective on Peptide Research
For those of us interested in the structural nuances of peptides, the Vasoactive Intestinal Peptide represents a masterclass in biological efficiency. The way the vasoactive intestinal polypeptide interacts with its receptors is dictated entirely by its sequence. If you are delving into the literature, you will find that the vasoactive intestinal peptide (VIP remains a cornerstone of neuroendocrine research.
Understanding the vasoactive intestinal peptide requires a deep dive into its primary sequence. Whether you are analyz VIP (10-28); [69856-17-3]; Vasoactive Intestinal Pe ing Vasoactive intestinal peptide - VIP the full chain or a specific truncated version, the precision required in modern peptide science ensures that we continue to uncover the complexities of this fascinating molecule. Always ensure that your research data is verified against standard chemical references, such as those found in PubChem, to ensure the accuracy of your structural analysis.