What Is KPV Peptide? Lys-Pro-Val and α-MSH Residues 11–13

KPV is the three-amino-acid sequence lysine-proline-valine, abbreviated Lys-Pro-Val or KPV. It corresponds to residues 11–13 at the C-terminus of alpha-melanocyte-stimulating hormone (α-MSH), a 13-residue peptide.

KPV sequence identity

The one-letter sequence is K-P-V. KPV is therefore a tripeptide, not a full-length melanocortin peptide. Its identity as the C-terminal α-MSH fragment is the starting point for interpreting KPV research.

The central His-Phe-Arg-Trp motif associated with the complete peptide's melanocortin pharmacophore is absent from KPV. Researchers consequently evaluate KPV as a discrete fragment rather than assuming the full signaling profile of α-MSH.

Fragment-level cellular signaling

Experimental literature examines KPV through cellular anti-inflammatory-signaling and immune-modulation readouts. Common measurements include NF-κB activation or nuclear translocation and changes in cytokine-expression markers. These measurements describe pathway behavior under defined assay conditions; they do not establish effects outside the model used.

Reports also discuss cellular entry and peptide-transporter involvement. Because transporter expression varies by cell line and tissue preparation, uptake should be measured rather than presumed. Receptor-related and intracellular hypotheses likewise require controls that distinguish binding, transport, and downstream response.

Why sequence context matters

A three-residue fragment can differ from its parent peptide in stability, transport, binding, and assay behavior. It can also produce concentration-dependent signals that are specific to a particular preparation. Accurate KPV research therefore identifies the sequence, model, concentration range, exposure window, controls, and analytical endpoint.

Research limitations

The KPV literature spans different cell types and model systems, so results are not automatically comparable. NF-κB, transcript, protein, secretion, and transporter assays answer different questions. Strong interpretation keeps each observation tied to the method and model that generated it.

The Lys-Pro-Val research listing provides the current 10 mg offer, specifications, batch lookup, and a clearly identified KPV 8 mg analytical report that is separate from the 10 mg offer.

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