Scientific Background | QRKLFFNLRKTKQ-Cys is a 16-residue synthetic peptide with the sequence Gln-Arg-Lys-Leu-Phe-Phe-Asn-Leu-Arg-Lys-Thr-Lys-Gln-Cys-Tyr-Ser. The sequence contains 1 cysteine residue, which can support thiol-selective conjugation or disulfide chemistry when the thiol group is available; is enriched in basic residues (3 Lys and 2 Arg), giving the sequence a cationic character under many aqueous conditions; contains 3 aromatic residues (Phe/Trp/Tyr), which can contribute to hydrophobic or aromatic interactions. No specific receptor, enzyme, pathway, disease association, or biological activity is assigned to this peptide without product-specific experimental evidence. |
Experimental Notes | Sequence-derived chemical properties are provided to support reagent selection and experimental planning. They do not establish a biological function. Solubility, aggregation, adsorption, conjugation efficiency, and assay performance should be validated under the intended experimental conditions. |
