Pentadecapeptide

Pentadecapeptide is the structural designation for a peptide composed of fifteen amino-acid residues joined by peptide bonds. In the peptide-research literature the term is most commonly associated with BPC-157 — the stable gastric pentadecapeptide whose research literature has used “pentadecapeptide BPC 157” as the standing reference phrase since the early 1990s.

Definition

A pentadecapeptide is a peptide of fifteen amino-acid residues. The naming convention follows the standard chemical nomenclature for peptide chain length — dipeptide (2), tripeptide (3), tetrapeptide (4), oligopeptide (a chain of typically up to 20 residues, with no sharp upper bound), polypeptide (longer chains), and protein (folded polypeptide with defined tertiary structure). The pentadecapeptide-specific term is in common use in the BPC-157 research literature where it functions as a precise structural label for the compound; the term also appears in scattered other peptide-research contexts where the 15-residue chain length is structurally relevant.

Pentadecapeptide-class compounds are large enough to support meaningful secondary-structure elements (short helical segments, β-turns) and small enough to be readily synthesised by solid-phase peptide synthesis methodology at research and commercial scale. The 15-residue length sits in the middle of the practical research-peptide range, well below the size threshold where chemical synthesis gives way to recombinant production as the economically dominant manufacturing route.

How pentadecapeptide structure shapes research framing

The structural-class label functions primarily as a precise identifier in the research literature. The phrase “stable gastric pentadecapeptide BPC 157” appears repeatedly across the Sikiric-Seiwerth group’s three decades of publications and serves to distinguish the 15-amino-acid synthetic compound from the parent Body Protection Compound protein from which the active fragment was derived. The structural label travels with the compound across the wound-healing literature (PMID 34267654), gastrointestinal-protection literature (PMID 38980576), pleiotropic-activity review (PMID 38675421), musculoskeletal-soft-tissue-healing review (PMID 30915550), and the major-vessel-occlusion / collateral-circulation work (PMID 35125818). Tendon-fibroblast outgrowth, cell survival, and migration findings are reported under the same structural-class label (PMID 21030672).

Related terms

• BPC-157
• Body Protection Compound
• Tendon fibroblast
• Amino acid
• Peptide bond
• Solid-phase peptide synthesis

Compounds in the pentadecapeptide class in the Ronin catalog

• BPC-157 — the canonical research pentadecapeptide; sequence Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val
• Wolverine Stack — single-vial co-formulation including the pentadecapeptide BPC-157

References

1. Chang CH et al. The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration. J Appl Physiol 2011;110(3):774-780. [PMID 21030672]
2. Gwyer D et al. Stable Gastric Pentadecapeptide BPC 157 and Wound Healing. Front Pharmacol 2021;12:627533. [PMID 34267654]
3. Sikiric P et al. New studies with stable gastric pentadecapeptide protecting gastrointestinal tract. Inflammopharmacology 2024;32(5):3119-3161. [PMID 38980576]
4. Cerovecki T et al. Gastric pentadecapeptide body protection compound BPC 157 and musculoskeletal soft tissue healing. Cell Tissue Res 2019. [PMID 30915550]
5. Sikiric P et al. Cytoprotective gastric pentadecapeptide BPC 157 resolves major vessel occlusion disturbances. World J Gastroenterol 2022;28(1):1-22. [PMID 35125818]

Glossary entries describe research-context use of peptide-research terminology. They do not constitute medical, veterinary, or clinical advice. Every compound in the Ronin catalog is sold strictly for laboratory and research use only.