When exploring the world of biochemistry and molecular research, the VIP peptide sequence often emerges as a primary point of interest. As someone who has spent considerable time analyzing the structural characteristics of various molecules, I have found the Vasoactive Intestinal Polypeptide (VIP) to be one of the most fascinating subjects due to its highly conserved nature across different species.
The Structural Foundation
At its core, VIP is a peptide of 28 amino acid residues. This specific arrang By cloning the DNAsequencecomplementary to the mRNA coding for human vasoactive intestinalpeptide(VIP), a 28-amino acid peptideoriginally isolated from Read more ement is what defines its functional identity. When we look at the H-His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn The histochemical antibody forVIPis generated in a rabbit against porcineVIPconjugated to bovine thyroglobulin with carbodiimide.Read more -Tyr-Thr-Arg-Leu-Arg sequence—often represented in its full 28-amino acid form—we are looking at a molec VIP is synthesized from a peptide precursor molecule(prepro-VIP; Fig. 2), containing a VIP-related peptide called PHM (peptide with N-terminal histidine Read more ule that is remarkably stable.
From my personal review of laboratory data, it is important to note that VIP is a neuropeptide that belongs to the glucagon/secretin superfamily. This classification is vital for those interested in the ligand-receptor dynamics of class II G protein-coupled receptors. A key detail often discussed in research circles is that VIP has 67% sequence homology with PACAP-27, and it shares roughly 68 percent sequence homology with pituitary adenylyl cyclase-activating polypeptides. This structural similarity is why researchers often study them in tandem.
Key Characteristics and O by I Gozes·1986·Cited by 42—These specific hybridization probes were constructed according to theneuroblastoma VIP-cDNA sequenceand contained up to 39 bases. The gene structure was Read more bservations
In my experience analyzing molecular data, the following details are essential for anyone attempting to understand this polypeptide:
* Origin: VIP was first isolated and sequenced from pig small intestine, which paved the way for modern mapping of the Enables hormone activity. Involved in several processes, including negative regulation of smooth muscle cell proliferation; DNA sequences coding for the VIP and its precursor molecules.
* Conservation: The amino acid order is identical in humans, bovine, porcine, and rat models. This evolutionary conservation underscores its fundamental role in biological systems.
* Synthesis: VIP is synthesized from a peptide precursor molecule known as prepro-VIP, which also contains a related peptide called PHM (peptide with N-terminal histidine).
* Biological Context: VIP is a neuropeptide involved in a diverse array of physiological processes, primarily by activating the PACAP subfamily of class B1 G protein-coupled receptors. It enables hormone activity and acts as a neuromod Vasoactive Intestinal Peptide (VIP) human, porcine, rat ulator within various tissues.
Practical Considerations for Researchers
When sourcing or reviewing data on VIP (Vasoactive Intestinal Peptide), researchers often encounter specific identifiers. For instance, the neuroblastoma VIP-cDNA sequence Vasoactive Intestinal Peptide (VIP) human, porcine, rat is a common reference point for those examining gene expression. Furthermore, the sequence is often cited in studies regarding its interaction with VPAC1 and VPAC2 receptors.
If you are looking to order materials for analytical purposes, you will frequently see the shorthand His-Ser-Asp-Ala used to denote the N-terminal start of the chain. Always ensure that the purity and the analytical verification (such as mass spectrometry confirming the 3323.77 Da molecular weight) align with your specific project requirements.
Final Thoughts
The study of the VIP peptide sequence is an excellent entry point into understanding how specific amino acid arrangements dictate function. Whether you are investigating the Vasoactive intestinal polypeptide (VIP) for its role in cellular signaling or its structural relationship to other neuropeptides, the precision of its 28-residue chain remains a cornerstone of molecular biology.
As I continue to track the latest developments in this field, the consistency of the VIP structure continues to provide a reliable baseline for further inquiry. Always rely on peer-reviewed documentation and standardized chemical databases to verify the identity and properties of the peptide you are working with.