Decapeptide-12 is a defined oligopeptide investigated in laboratory settings for its interaction with tyrosinase, a copper-dependent oxidase involved in phenolic oxidation and pigment biosynthesis pathways. Within research models, this peptide is employed as a biochemical tool to examine enzyme–substrate interactions, modulation of oxidation kinetics, and upstream regulatory steps associated with pigment-associated biochemical cascades.

Sequence (Three-Letter Code): Tyr-Arg-Ser-Aar-Lysd-Tyr-Ser-Ser-Trp-Tyr
Molecular formula: C65H90N18O17
Molecular weight: 1311.46 g/mol

Decapeptide-12 is a short, sequence-specific peptide suitable for mechanistic enzyme studies, including binding analyses and oxidation rate measurements in tyrosinase-centered biochemical assays.

• Tyrosinase enzymology: Evaluation of peptide-mediated modulation of tyrosinase-catalyzed oxidation reactions in in-vitro assay systems.

• Melanogenesis pathway modeling: Investigation of upstream regulatory effects on pigment-associated biochemical endpoints in cellular research models.

• Comparative enzyme structure–function studies: Assessment of tyrosinase activity across species and isoforms using peptide interaction probes.

• Phenolic oxidation research: Use in experimental systems modeling enzymatic browning and quinone formation from phenolic substrates.

• Insect biochemistry studies: Examination of tyrosinase-linked pathways involved in pigment and cuticle-associated biochemical processes.

Tyrosinase is a binuclear copper oxidase that catalyzes rate-limiting oxidation steps in pigment biosynthesis and related phenolic oxidation pathways. Its catalytic activity generates reactive intermediates that subsequently polymerize into higher-order pigment structures.

Decapeptide-12 has been described in preclinical literature as a reversible modulator of tyrosinase activity. Mechanistic investigations focus on peptide–enzyme interactions, copper coordination effects, and alterations in substrate oxidation kinetics without permanent enzyme inactivation.

Molecular studies frequently integrate tyrosinase gene expression data (TYR) with enzymatic activity readouts to contextualize pathway flux and biochemical outcomes in controlled experimental systems.

Preclinical investigations have evaluated decapeptide-12 in isolated enzyme assays and pigment-related cellular models. In vitro studies using cultured pigment-producing cells have reported measurable reductions in melanin-associated biochemical markers consistent with upstream tyrosinase modulation under defined experimental conditions.

Comparative assay designs often include reference tyrosinase inhibitors to contextualize activity modulation. Such benchmarking is limited to analytical comparison within laboratory systems and does not imply applicability beyond research use.

Decapeptide-12 is supplied as a research-grade peptide intended for laboratory experimentation. Standard analytical characterization typically includes high-performance liquid chromatography (HPLC) and mass spectrometry (MS) to confirm identity and purity. Handling and storage should follow established peptide reagent laboratory protocols.

1. Iozumi, K., Hoganson, G. E., Pennella, R., Everett, M. A. & Fuller, B. B. Role of tyrosinase as the determinant of pigmentation in cultured human melanocytes. J. Invest. Dermatol. 100, 806–811 (1993).
2. TYR tyrosinase [Homo sapiens (human)] – Gene – NCBI. Available at: http://www.ncbi.nlm.nih.gov/gene/7299
3. Abu Ubeid, A., Zhao, L., Wang, Y. & Hantash, B. M. Short-sequence oligopeptides with inhibitory activity against mushroom and human tyrosinase. J. Invest. Dermatol. 129, 2242–2249 (2009).

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The products offered on this website are furnished for in-vitro studies only. In-vitro studies (Latin: in glass) are performed outside of the body. These products are not medicines or drugs and have not been approved by the FDA to prevent, treat, or cure any disease or condition. Bodily introduction of any kind into humans or animals is strictly forbidden by law.

For Laboratory Research Only. Not for human use, medical use, diagnostic use, or veterinary use.