[Arg8]-Vasopressin

[Arg8]-Vasopressin is a synthetic research peptide in the arginine vasopressin (AVP) family. Arginine vasopressin is a cyclic nonapeptide that acts through V1a, V1b, and V2 vasopressin receptors. Substitution at individual residues, N-terminal deamination, disulfide-ring changes, and terminal modifications can produce major differences in receptor selectivity and efficacy. Vasopressin analogs therefore provide defined tools for receptor pharmacology and structure-activity research.

• receptor-binding
• competition assays
• functional signaling assays
• enzymatic-processing or stability studies
• antibody controls
• LC-MS/HPLC method development
• comparative structure-activity experiments

For a fragment, residue-substituted analog, stereochemical variant, labeled peptide, or terminally modified form, experimental behavior should be evaluated for the exact construct rather than assumed to match the native parent peptide. Sequence-dependent solubility, aggregation, adsorption, and stability should be considered when selecting reconstitution and assay conditions.

1. Oxytocin and vasopressin agonists and antagonists as research tools and potential therapeutic agents
2. Design of potent and selective agonists for the human vasopressin V1b receptor