Ras Inhibitory Peptide/159088-48-9/Peptide storage

Ras Inhibitory Peptide is an inhibitor of Ras, consisting of a linear peptide made up of 10 amino acids, which can specifically bind to Ras protein and inhibit its activity. This peptide blocks the signaling pathway by interfering with the interaction between Ras and effector proteins, demonstrating potential antitumor activity. Studies have shown that it exhibits good stability and bioactivity in cell models, making it suitable for research on cancer-related signaling pathways and drug development.

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：

What is the role of peptides in skincare products?

Peptides have various functions in skincare products, including:

Moisturizing: Peptides can help the skin retain moisture and increase skin hydration.

Anti-aging: Peptides can stimulate collagen production, reduce wrinkles, and improve skin elasticity.

Whitening: Some peptides can inhibit melanin production and lighten spots.

Repair: Peptides can promote cell metabolism and help repair damaged skin.

I need a cyclic peptide, which contains a tryptophan, will it be oxidized?

The oxidation of tryptophan is a common phenomenon in peptide oxidation, and peptides are usually cyclized before purification. If the oxidation of tryptophan occurs, the retention time of the peptide on the HPLC column will change, and the oxidation can be removed by purification. Furthermore, oxidized peptides can also be detected by MS.

What do I need to look for when designing phosphorylated peptides?

When designing phosphorylation modifications, the phosphorylation modifications should not be more than 10 amino acids away from the N-terminus to avoid a decrease in coupling efficiency.

How do I store peptides?
Usually the peptide product you receive is lyophilized powder packaging, please store the peptide in a dry, dark -20°C freezer immediately after receiving the sample to maintain the peptide stability as much as possible. Before use, place the polypeptide packaging tube from the freezer to a dry condition at room temperature, and allow the temperature to naturally warm to room temperature before opening the cap. Otherwise, water vapor in the air will enter the sample tube when the lid is opened, reducing peptide stability. Once opened, it should be weighed quickly and immediately sealed to avoid deliquescent, and hydrophilic peptides should be more careful to avoid repeated freezing and thawing. Outside temperature during short-term transportation will not affect the shelf life and quality of peptides.

How To Order?

1. Contact us directly by phone or email: +86-13735575465, sales1@gotopbio.com.

2. Order online. Please fill out the order online form.

3. Provide peptide name, CAS No. or sequence, purity and modification if required, quantity, etc. we will provide a quotation within 2 hours.

4. Order conformation by duly signed sales contract and NDA(non disclosure agreement) or confidential agreement.

5. We will continuously update the order progress in time.

6. Peptide delivery by DHL, Fedex or others, and HPLC, MS, COA will be provided along with the cargo.

7. Refund policy will be followed if any discrepancy of our quality or service.

8. After-sale service: If our clients have any questions about our peptide during experiment, please feel free to contact us and we will respond to it in a short time.

All products of the company are only used for scientific research purpose, it’s prohibited to be directly used by any individuals on human body.