D-RR4 peptide
For research use only. NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE.
Catalog Number: MPE0008733
Product Quantity: 5mg/20mg
Price: Varies
Availability: In Stock
Product Information
The peptide D-RR4 (wlrrikawlrrika-NH2; d-amino acids) was developed to be resistant to proteolytic digestion, as confirmed by stability in the presence of both bacterial (proteinase K) and mammalian (trypsin) proteases, and it remained active in the presence of physiologic concentrations of salt, serum proteins, and acidic pH. It also showed reduced toxicity towards macrophages and keratinocytes when compared to the l-enantiomeric form of the peptide. The in vivo antibacterial activity of D-RR4 was demonstrated by increased survival and decreased bacterial burden of Caenorhabditis elegans worms infected with P. aeruginosa or A. baumannii, after treatment with the peptide.
| Product Name: | D-RR4 peptide |
| Molecular Formula: | C88H149N31O14 |
| Molecular Weight: | 1865.32 |
| Sequence: | H-WLRRIKAWLRRIKA-NH2(d-amino acids) |
| Three letter code: | H-Trp-Leu-Arg-Arg-Ile-Lys-Ala-Trp-Leu-Arg-Arg-Ile-Lys-Ala-NH2 (d-amino acids) |
| Length (aa): | 35 |
| Peptide Purity (HPLC): | >95%; 98% and 99% purity available upon request |
| Quantity/Unit: | 1 Vial |
| * Optional Service: | TFA Removal Service is available upon request. |
Technical Information
| Source: | Synthetic |
| Storage Guidelines: | Store at -20°C for up to 1 year. should be refrigerated after reconstitution. For more details, please refer to the manual: Handling and Storage of Synthetic Peptides |
| Solubility: | Soluble in water |
| Appearance: | White to off-white powder |
| Shipping: | Peptides are shipped at ambient temperature by standard shipment process. |
| About TFA salt: | Trifluoroacetic acid (TFA) is a strong acid, which is commonly used to cleave synthesized peptides from solid-phase resins and is also used to improve HPLC performance in the peptide purification step. By default, custom peptides are delivered as lyophilized TFA salts, and can contain as much as 10-45% TFA. TFA in custom peptides can cause inexplicable discrepancies in subsequent assay data. For instance, TFA in nM concentrations has been shown to interfere with cellular assays, inhibiting cellular proliferation in some instances, and increasing cell viability in others. It has also been found to be an unintended allosteric modulator of the glycine receptor, GlyR. TFA Removal Service is recommended for: > Peptides that will be used in cellular assays > Peptides that will be used as APIs or in manufactured products > For hydrophilic peptides containing numerous basic residues |
Related Products / Services
Custom Peptide Synthesis: D-RR4 peptide peptide synthesis services include standard chemical peptide synthesis, peptide modification, peptide libraries, and recombinant peptide expression. Read more...
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