1. Signaling Pathways
  2. Metabolic Enzyme/Protease
  3. Tyrosinase

Tyrosinase

Tyrosinase is a copper-containing metalloprotein belonging to the type-3 copper protein family, together with haemocyanins and catechol oxidases. Tyrosinases are the catalysts in mammals responsible for the formation of melanin in skin and hair color, as well as browning in fruit and vegetables following cell damage.

Tyrosinases are found in various prokaryotes as well as in plants, fungi, arthropods, and mammals and are responsible for pigmentation, wound healing, radiation protection, and primary immune response. Tyrosinases perform two sequential enzymatic reactions: hydroxylation of monophenols and oxidation of diphenols to form quinones which polymerize spontaneously to melanin. In plants, sponges, and many invertebrates, tyrosinases are important for wound healing and primary immune responses; in arthropods, they play a role in sclerotization, and in bacteria, tyrosinases protect DNA from UV damage.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-138885
    Tryptamine guanosine carbamate
    Inhibitor 99.79%
    Tryptamine guanosine carbamate (TpGc) is a selective HINT1 (histidine triad nucleotide-binding protein 1) inhibitor (Ki=34 μM, Kd=3.65 μM). Tryptamine guanosine carbamate significantly enhances morphine antinociception while preventing the development of tolerance.
    Tryptamine guanosine carbamate
  • HY-108935
    Lavendustin B
    Inhibitor 98.02%
    Lavendustin B is an inhibitor of HIV-1 integrase interaction with LEDGF/p75 with an IC50 of 94.07 μM. Lavendustin B is an ATP-competitive GLUT1 inhibitor with a Ki of 15 μM. Lavendustin B is also a weak inhibitor of tyrosine kinases.
    Lavendustin B
  • HY-N2983
    Cajanin
    Inhibitor 99.96%
    Cajanin is a potent and orally active anti-melanogenic agent. Cajanin shows antiproliferative activity in MNT1 Cells. Cajanin efficiently decreases the melanin content. Cajanin down-regulates the mRNA and protein expression levels of MITF, tyrosinase, TRP-1 and Dct (TRP-2). Cajanin induces cell cycle arrest at G2/M and S phase. Cajanin stimulates osteoblast proliferation. Cajanin has the potential for the research of human hyperpigmented disorders and menopausal osteoporosis.
    Cajanin
  • HY-N3200
    Neorauflavane
    Inhibitor
    Neorauflavane is a potent tyrosinase inhibitor derived from Campylotropis hirtella, with an IC50 value of 30 nM for tyrosinase monophenolase activity and an IC50 value of 500 nM for diphenolase activity. Neorauflavane can effectively reduce the melanin content of B16 melanoma cells.
    Neorauflavane
  • HY-N3103
    p-Coumaric Acid Ethyl Ester
    99.19%
    p-Coumaric Acid Ethyl Ester (Ethyl (E)-p-hydroxycinnamate; Ethyl trans-4-hydroxycinnamate) is a non-competitive, reversible inhibitor of tyrosinase (IC50=4.89 μg/mL, Ki=1.83 μg/mL), which can quench the intrinsic fluorescence of the enzyme. p-Coumaric Acid Ethyl Ester changes the binding affinity of L-tyrosine by inducing conformational changes in the catalytic domain of tyrosinase, and does not bind to the copper ion of the enzyme. p-Coumaric Acid Ethyl Ester is used in the development of medicines, cosmetics and fruit preservation products using pollen.
    p-Coumaric Acid Ethyl Ester
  • HY-W007671
    H-Tyr-OMe
    Substrate 99.53%
    H-Tyr-OMe is an endogenous metabolite. H-Tyr-OMe quenches the fluorescence of carbon dots by oxidizing the phenolic hydroxyl group to quinone under the catalysis of Tyrosinase, and its amino and thiol binding ability can respond to changes in the concentration of biothiols.
    H-Tyr-OMe
  • HY-P3813
    Tyrosinase (206-214), human
    99.19%
    Tyrosinase (206-214), human (AFLPWHRLF), a 9-amino acid peptide, is a tyrosinase epitope. Tyrosinase (206-214), human can be recognized by HLA-A24 restricted, tumor-infiltrating lymphocytes (TIL).
    Tyrosinase (206-214), human
  • HY-N0136A
    (±)-Taxifolin
    Inhibitor 99.34%
    (±)-Taxifolin ((±)-Dihydroquercetin) is the racemate of Taxifolin. Taxifolin exhibits important anti-tyrosinase activity. Taxifolin exhibits significant inhibitory activity against collagenase with an IC50 value of 193.3 μM. Taxifolin is an important natural compound with antifibrotic activity. Taxifolin is a free radical scavenger with antioxidant capacity.
    (±)-Taxifolin
  • HY-B1461
    Deoxyarbutin
    Inhibitor 99.92%
    Deoxyarbutin is an orally active tyrosinase inhibitor that can promote apoptosis of melanoma cells, enhance the vitality of mouse acinar cells, and has skin whitening and anti-tumor activity[1][2][3].
    Deoxyarbutin
  • HY-N8223
    Viscumneoside III
    Inhibitor 98.74%
    Viscumneoside III, a dihydroflavone O-glycoside, is a potent tyrosinase inhibitor with an IC50 of 0.5 mM. Viscumneoside III has anti-angina pectoris.
    Viscumneoside III
  • HY-21290
    SU-4942
    Modulator 99.60%
    SU-4942 is a tyrosine kinase signal signal modulator. SU-4942 inhibits VEGF- and endothelial cell growth factor (ECGF)-induced mitogenesis in endothelial cells (US5792783A).
    SU-4942
  • HY-149207
    Tyrosinase-IN-11
    Inhibitor 98.12%
    Tyrosinase-IN-11 is a potent tyrosinase inhibitor with IC50s of 50 nM and 64 nM for L-tyrosinase and L-dopa, respectively. Tyrosinase-IN-11 has significant antioxidant activity and low cytotoxicity. Tyrosinase-IN-11 has the potential for skin hyperpigmentation research.
    Tyrosinase-IN-11
  • HY-N0136B
    (-)-Taxifolin
    Inhibitor 98.98%
    (-)-Taxifolin is the less active enantiomer of Taxifolin. Taxifolin exhibits important anti-tyrosinase activity. Taxifolin exhibits significant inhibitory activity against collagenase with an IC50 value of 193.3 μM. Taxifolin is an important natural compound with antifibrotic activity. Taxifolin is a free radical scavenger with antioxidant capacity.
    (-)-Taxifolin
  • HY-N12810
    Sanggenon O
    Inhibitor
    Sanggenon O is a mushroom tyrosinase inhibitor that can be isolated from Morus nigra, with an IC50 value of 1.15 μM.
    Sanggenon O
  • HY-N0136S1
    (±)-Taxifolin-13C3
    Inhibitor 99.63%
    (±)-Taxifolin-13C3 ((±)-Dihydroquercetin-13C3) is a derivative of (±)-Taxifolin, labeled with 13C3. (±)-Taxifolin is the racemate of Taxifolin. Taxifolin exhibits important anti-tyrosinase activity. Taxifolin exhibits significant inhibitory activity against collagenase with an IC50 value of 193.3 μM. Taxifolin is an important natural compound with antifibrotic activity. Taxifolin is a free radical scavenger with antioxidant capacity.
    (±)-Taxifolin-<sup>13</sup>C<sub>3</sub>
  • HY-W013852
    PKC-IN-6
    Inhibitor 99.63%
    PKC-IN-6 (Compound 21) is a selective inhibitor of tyrosine and serine kinases. PKC-IN-6 shows inhibitory activity against PKC-α, PKC-δ, PKA, EGF-R with IC50 values of 240, >500, >500, >100 μM, respectively. PKC-IN-6 is promising for research of cancers.
    PKC-IN-6
  • HY-N11063
    Obtusifolin-2-O-glucoside
    Inhibitor
    Obtusifolin-2-O-glucoside (compound 7) is a Tyrosinase inhibitor (IC50=9.2 μM). Obtusifolin-2-O-glucoside can be isolated from cassia seed.
    Obtusifolin-2-O-glucoside
  • HY-N3748
    Dihydromorin
    Inhibitor 99.96%
    Dihydromorin, a natural flavanonol compound, is a tyrosinase inhibitor.
    Dihydromorin
  • HY-W013636C
    2-Ketoglutaric acid potassium
    Inhibitor 98.0%
    2-Ketoglutaric acid (Alpha-Ketoglutaric acid) (potassium) is an intermediate in the production of ATP or GTP in the Krebs cycle. 2-Ketoglutaric acid potassium is a reversible and orally active inhibitor of tyrosinase with an IC50 value of 15 mM. 2-Ketoglutaric acid potassium also acts as the major carbon skeleton for nitrogen-assimilatory reactions. 2-Ketoglutaric acid potassium significantly suppresses abnormal intestinal permeability, delocalization of tight junction proteins from the intestinal cells, expression of TNFα in vitro and in vivo. 2-Ketoglutaric acid potassium directly binds to TAK1, and inhibits the TRAF6-TAK1 interaction. 2-Ketoglutaric acid potassium also alleviates inflammatory bowel disease (IBD) symptoms and gut microbiota dysbiosis, evident by the improvements in the intestine length.
    2-Ketoglutaric acid potassium
  • HY-N1238
    β-Sitostenone
    Inhibitor
    β-Sitostenone is a sterols that can be isolated from Cochlospermum vitifolium.β-Sitostenone inhibits tyrosinase activity, and has anti-melanogenic and anti-tumor activities.
    β-Sitostenone
Cat. No. Product Name / Synonyms Application Reactivity