Hey there! As a supplier of RVG29 - Cys, I often get asked about the molecular weight of this peptide. So, let's dive right in and break it down.
First off, what is RVG29 - Cys? RVG29 is a well - known peptide that has shown potential in various biological applications. The addition of the cysteine (Cys) residue to RVG29 can change its properties and functions in interesting ways. Cysteine is an amino acid that contains a thiol group, which can be used for further chemical modifications like conjugation to other molecules.
To figure out the molecular weight of RVG29 - Cys, we need to understand the composition of both RVG29 and cysteine. RVG29 is a 29 - amino - acid peptide. Each amino acid has a specific molecular weight. For example, glycine (Gly) has a molecular weight of about 75.07 g/mol, alanine (Ala) is around 89.09 g/mol, and so on.
Let's start by looking at the general formula for calculating the molecular weight of a peptide. The molecular weight of a peptide is the sum of the molecular weights of its individual amino acids minus the molecular weight of water (H₂O) for each peptide bond formed. When two amino acids combine to form a peptide bond, a molecule of water (with a molecular weight of 18.02 g/mol) is removed.
For RVG29, we'd have to sum up the molecular weights of its 29 amino acids and subtract 28 times the molecular weight of water (since there are 28 peptide bonds in a 29 - amino - acid peptide). Then, we add the molecular weight of cysteine. Cysteine has a molecular weight of approximately 121.16 g/mol.
To get an accurate value for the molecular weight of RVG29, we'd need to know its exact amino - acid sequence. Once we have that, we can use a peptide molecular weight calculator or do the math by hand. There are also some online tools available that can quickly calculate the molecular weight of a given peptide sequence.
Now, why is the molecular weight of RVG29 - Cys important? Well, in the field of biochemistry and drug development, the molecular weight of a compound can have a significant impact on its properties. For example, it can affect how the peptide is absorbed in the body, its solubility, and its ability to cross cell membranes.
In drug delivery, RVG29 - Cys has been of interest because of its potential to target specific cells. The molecular weight can influence how well it can bind to its target receptors. A peptide with a very high molecular weight might have trouble getting into cells, while one with a very low molecular weight might not have enough stability or binding affinity.
If you're working on a research project involving RVG29 - Cys, knowing its molecular weight is crucial for accurate dosing and experimental design. You need to know how much of the peptide to use in your assays to get reliable results.
We also offer other peptides in our catalogue, like PAR - 3 (1 - 6) Amide (mouse), VIP (human, Bovine, Porcine, Rat), and E[c(RGDfK)]2. These peptides have their own unique properties and applications in the field of life sciences.
PAR - 3 (1 - 6) Amide (mouse) is involved in cell - cell adhesion and signaling pathways. VIP (human, Bovine, Porcine, Rat) is a neuropeptide that has various physiological effects, including vasodilation and regulation of immune responses. E[c(RGDfK)]2 is a cyclic peptide that has been studied for its potential in targeting integrin receptors, which are important in cell adhesion and migration.
As a supplier, we ensure that all our peptides, including RVG29 - Cys, are of high quality. We use state - of - the - art synthesis techniques to produce peptides with high purity. Our quality control measures include methods like high - performance liquid chromatography (HPLC) and mass spectrometry to confirm the identity and purity of the peptides.
If you're interested in purchasing RVG29 - Cys or any of our other peptides, we're here to help. Whether you're a researcher in a university lab or a scientist in a biotech company, we can provide you with the peptides you need for your projects.

Contact us to discuss your requirements and start a procurement process. We can offer competitive pricing and fast delivery times. Our team of experts is also available to answer any questions you might have about the peptides, their applications, or the ordering process.
In conclusion, the molecular weight of RVG29 - Cys is an important parameter that can influence its biological properties and applications. By understanding its molecular weight, you can better design your experiments and make the most of this peptide in your research. So, don't hesitate to reach out if you're in the market for high - quality RVG29 - Cys or other peptides.
References
- General biochemistry textbooks for amino - acid and peptide molecular weight calculations
- Research papers on the biological applications of RVG29, PAR - 3 (1 - 6) Amide, VIP, and E[c(RGDfK)]2




