Cysteine peptide
Based on 1 Customer Validation
Cysteine peptide is a tyrosinase inhibitor with skin-whitening, antioxidant and multi-regulatory activities. Cysteine peptide inhibits enzyme activity and blocks melanin transport, effectively reducing UV-B-induced skin erythema and pigmentation. Cysteine peptide synergistically maintains skin health by quenching ROS, resisting oxidative stress and promoting pheomelanin production. Cysteine peptide safely prevents daily ultraviolet damage and supports moderate sun exposure for vitamin D synthesis. Cysteine peptide also acts as a plant signaling factor to regulate vegetative growth, development and stress resistance responses.
For research use only. We do not sell to patients.
- Purity: 99.74%
- CAS No.: 845727-64-2
- Formula: C32H50N10O9S
- Molecular Weight:750.87
-
Storage:
Sealed storage, away from moisture.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
-
Biological Activity
-
Chemical Information
-
Solvent & Solubility
- Purity & Documentation
- References
-
Help & FAQs
-
Antioxidant Compound Library
HY-L037
-
Anti-Parkinson's Disease Compound Library
HY-L085
-
Neurodegenerative Disease-related Compound Library
HY-L086
-
Peptide Library
HY-L105
-
Metabolic Enzyme Compound Library
HY-L146
-
Anti-Drug-Resistant Compound Library
HY-L169
-
Radioprotector Library
HY-L178
-
Bioactive Compound Library Max
HY-L181
-
MCE Bioactive Compound Library
HY-L001V
-
Bioactive Compound Library
HY-L001
-
Anti-Fibrosis Compound Library
HY-L185
-
High-Throughput Bioactive Compound Library
HY-L205
-
Metabolism/Protease Compound Library
HY-L012
-
Peptide Compound Library
HY-L105S
Biological Activity
Cysteine peptides, including γ-glutamylcysteine and cysteinylglycine, contribute to enhanced DPPH radical scavenging capacity relative to an equivalent amount of GSH alone[1].
Tobacco cysteine peptide RALF inhibits root growth and nutrient uptake in tobacco cells[2].
Tomato cysteine peptide LeRALF induces medium alkalinization in tomato cells via receptor binding, with disulphide bridges essential for activity, and binds to cell surface sites with a dissociation value of 0.8×10-9 M[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
-
CAS No. 845727-64-2
-
Appearance Solid
-
Molecular Weight 750.87
-
Formula C32H50N10O9S
-
Color White to off-white
-
Sequence
Ac-Arg-Phe-Ala-Ala-Cys-Ala-Ala
-
Sequence Shortening
Ac-RFAACAA
-
Shipping
Room temperature in continental US; may vary elsewhere.
-
Storage
Sealed storage, away from moisture
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Solvent & Solubility
H2O : 3.33 mg/mL (4.43 mM; Need ultrasonic)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
-
Data Sheet (270 KB)
-
SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
-
Handling Instructions (2659 KB)
References
[1]. Sakuma A, et al. Oral administration of cysteine peptides attenuates UV-B-induced skin erythema and pigmentation in humans. Sci Rep. 2024;14(1):22163. Published 2024 Sep 27. [Content Brief]
[2]. Marshall E, et al. Cysteine-rich peptides (CRPs) mediate diverse aspects of cell-cell communication in plant reproduction and development. J Exp Bot. 2011;62(5):1677-1686. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| H2O | 1 mM | 1.3318 mL | 6.6589 mL | 13.3179 mL | 33.2947 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Cysteine peptide Related Classifications
HY-P10533 Related Classifications
Powered by Bioz