Other · Putative elastin-derived tetrapeptide
Elastin-derived peptide VVPQ
Also known as Val-Val-Pro-Gln
A tetrapeptide labelled elastin-derived whose parent-sequence provenance and receptor activity require independent verification.
- Length
- 4 amino acids
- Half-life
- Not well characterised
- Mechanism
- A sequence-specific receptor target and signalling mechanism are not well established for isolated VVPQ. Binding to the elastin receptor complex cannot be inferred from an elastin-derived label or from findings obtained with other elastin fragments.
- Studied in
- Exploratory in-vitro work can assess VVPQ stability, peptide–protein interactions and cellular responses, but a well-established sequence-specific laboratory or animal model is not documented.
About Elastin-derived peptide VVPQ
VVPQ specifies valine–valine–proline–glutamine, a four-residue peptide with no hydroxyproline or other modification implied by the sequence. Although described here as elastin-derived, the name alone does not establish its location in a particular elastin precursor, species or isoform. A reliable sequence-origin statement requires a parent-protein accession and residue mapping. A definitive discovery history or well-established receptor assignment for this exact isolated tetrapeptide cannot be supplied without supporting primary evidence.
Elastin fragments are a heterogeneous group, and biological findings for one fragment cannot automatically be transferred to another. VVPQ lacks the GxxPG pattern associated with several established elastin receptor-complex ligands; this observation does not itself prove inactivity. Appropriate exploratory studies would characterise peptide stability and direct interactions before interpreting cellular readouts mechanistically. Comparisons with validated elastin-derived reference sequences, alongside scrambled controls, would help test whether any observed response is specific to VVPQ.
Laboratory notes
- Request parent-protein mapping and primary references before using elastin origin as an experimental assumption.
- Verify the exact sequence, terminal groups and purity by analytical testing; related short peptides may not share biological properties.
- Measure peptide persistence in the assay medium and include viability and vehicle controls before interpreting changes in cellular readouts.
Storage and reconstitution basics: storage guide.
Questions about Elastin-derived peptide VVPQ
Is VVPQ a validated elastin receptor-complex ligand?
A validated receptor assignment is not established for this exact sequence. Findings for better-characterised elastin peptides are not sufficient evidence.
What documentation would establish its elastin origin?
A specified species, elastin protein accession, residue positions and a primary reference identifying or generating the fragment would support the designation.
Does the proline residue establish a bioactive elastin motif?
No. One proline residue is not diagnostic of elastin origin or receptor recognition; the complete sequence, conformation and experimental context matter.
Is Elastin-derived peptide VVPQ for human use?
No. It is supplied strictly for in-vitro laboratory research and is not for human or animal consumption.
Related research peptides
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