Valine peptide (porcine source), VQY, 99510-37-9, peptide synthesis, peptide raw material company

PeptideName：Valosin Peptide (VQY), porcine/VQY/99510-37-9/Peptide synthesis

Catalog No：GT-P2421

Sequence：H-Val-Gln-Tyr-Pro-Val-Glu-His-Pro-Asp-Lys-Phe-Leu-Lys-Phe-Gly-Met-Thr-Pro-Ser-Lys-Gly-Val-Leu-Phe-Tyr-OH

CAS Number：99510-37-9

Molecular Formula：C141H207N31O35S1

Molecular Weight：2928.3957

Category：Valosin Peptide (VQY), porcine,VQY,99510-37-9,Peptide synthesis,Peptide raw material company

Description

The core advantage of VQY peptides lies in their natural porcine origin: the raw materials are derived from healthy porcine proteins (such as high-quality proteins from porcine milk and muscle tissue), and are prepared through green processes such as enzymatic hydrolysis and purification. The amino acid composition of porcine proteins has high compatibility with the human body, and the VQY tripeptides formed after enzymatic hydrolysis do not require complex digestion and can be directly absorbed and utilized by the intestines, with significantly better bioavailability than large molecule proteins or single amino acids.

Specifications

Apperance: White to off-white powder

Purity(HPLC): ≥98.0%

Single Impurity: ≤2.0%

Acetate Content(HPLC): 5.0%～12.0%

Water Content (Karl Fischer): ≤10.0%

Peptide Content: ≥80.0%

Packing and Shipping: Low temperature, vacuum packing, accurate to mg as required.

FAQ：

Which end is best for my research?

By default, the peptide ends with an N-terminal free amino group and a C-terminal free carboxyl group. The peptide sequence often represents the sequence of the mother protein. In order to be closer to the mother protein, the end of the peptide often needs to be closed, that is, n-terminal acetylation and C-terminal amidation. This modification avoids the introduction of excess charge, and also makes it more able to prevent exonucliase action, so that the peptide is more stable.

How do you determine if a peptide is looped?

We use the Ellman reaction to test whether the ring formation is complete. If the Ellman test is positive (yellow), the ring reaction is incomplete. If the test results are negative (not yellow), the ring reaction has been complete. We do not provide the analysis report of cyclization identification for our clients. Generally, there will be a description of Ellman's test results in the QC report.

How do you dissolve polypeptides?

The solubility of polypeptide depends mainly on its primary and secondary structure, the nature of modification label, solvent type and final concentration. If the peptide is insoluble in water, ultrasound can help dissolve it. For basic peptide, it is recommended to dissolve with 10% acetic acid; For acidic peptides, dissolution with 10%NH4HCO3 is recommended. Organic solvents can also be added to insoluble polypeptides. The peptide is dissolved in the least amount of organic solvent (e.g., DMSO, DMF, isopropyl alcohol, methanol, etc.). It is highly recommended that the peptide be dissolved in the organic solvent first and then slowly added to water or other buffer until the desired concentration.

If a VQY is 98% pure, what is 2%?

Two percent of the composition was truncated or deleted sequence fragments.

Which modified labeled polypeptides can be synthesized in Chinese peptide?

Our company provides a variety of modified peptide labeling, such as acetylation, biotin labeling, phosphorylation modification, fluorescence modification, can also be customized according to your special needs.