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T3824

Sigma-Aldrich

Tyrosinase from mushroom

lyophilized powder, ≥1000 unit/mg solid

Szinonimák:

Catechol Oxidase, Monophenol Monooxygenase, Monophenol, dihydroxyphenylalanine:oxygen oxidoreductase, Polyphenol Oxidase

Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez
Összes fotó(8)

About This Item

CAS-szám:
9002-10-2
Enzyme Commission szám:
1.14.18.1 (BRENDA, IUBMB)
MDL-szám:
MFCD00082118
UNSPSC kód:
12352204
NACRES:
NA.54

biológiai forrás

fungus (mushroom)

Minőségi szint

200

form

lyophilized powder

specifikus aktivitás

≥1000 unit/mg solid

molekulatömeg

119.5 kDa by electrophoresis
 128 kDa by sedimentation velocity diffusion
 133 kDa by LS

alkalmazás(ok)

diagnostic assay manufacturing

kiszállítva

wet ice

tárolási hőmérséklet

−20°C

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Általános leírás

Isoelectric point (pI): 4.7-5
pH optimum is 6-7

Molecular weight: 128 kDa by sedimentation velocity diffusion; 133 kDa by light-scattering measurements, and 119.5 kDa by electrophoresis.

Tyrosinase is a copper-containing oxidase, which has activity for both catechols and cresol. It is responsible for browning reactions. The enzyme is reported to have two binding sites for aromatic substrates and a different binding site for oxygen-copper. The copper is probably Cu(I), with inactivation involving oxidation to Cu(II) ion.
Tyrosinase is a copper-containing oxidase with activity for catechols and cresol. Tyrosinase participates in the conversion of tyrosine to dihydroxyphenylalanine (DOPA), and polymerization of DOPA leads to melanin formation. Tyrosinase has a role in browning reactions. The enzyme is said to have two binding sites for aromatic substrates and a distinct binding site for oxygen-copper.

Alkalmazás

Tyrosinase activity has been assessed in a study that developed an alternative therapeutic agent for treating hyperpigmentation. Tyrosinase has also been used in a study to investigate the oculocutaneous albinism phenotype in the Pakistani population.

Biokémiai/fiziológiai hatások

Converts tyrosine to L-DOPA or tyramine to dopamine

Fizikai tulajdonságok

Isoelectric point (pI): 4.7-5
pH optimum is 6-7

Molecular weight: 128 kDa by sedimentation velocity diffusion; 133 kDa by light-scattering measurements, and 119.5 kDa by electrophoresis.

Egység definíció

One unit = ΔA280 of 0.001 per min at pH 6.5 at 25 °C in 3 mL reaction mix containing L-tyrosine.

Piktogramok

Health hazard
GHS08

Figyelmeztetés

Danger

Figyelmeztető mondatok

H334

Óvintézkedésre vonatkozó mondatok

P261 - P284 - P501

Veszélyességi osztályok

Resp. Sens. 1

Tárolási osztály kódja

11 - Combustible Solids

WGK

WGK 3

Lobbanási pont (F)

Not applicable

Lobbanási pont (C)

Not applicable

Egyéni védőeszköz

Eyeshields, Gloves, type N95 (US)

Analitikai tanúsítványok (COA)

Analitikai tanúsítványok (COA) keresése a termék sarzs-/tételszámának megadásával. A sarzs- és tételszámok a termék címkéjén találhatók, a „Lot” vagy „Batch” szavak után.

Már rendelkezik ezzel a termékkel?

Az Ön által nemrégiben megvásárolt termékekre vonatkozó dokumentumokat a Dokumentumtárban találja.

Dokumentumtár megtekintése

Shilpi Goenka et al.
Molecules (Basel, Switzerland), 25(16) (2020-08-13)
Previous studies have reported that estrogen hormone promotes melanogenesis while progesterone inhibits it. A selective estrogen receptor modulator (SERM), tamoxifen, has been shown to promote melanogenesis; however, to date, there have been no reports on the effects of a selective
A T S Jorge et al.
International journal of cosmetic science, 34(5), 435-440 (2012-06-29)
Several treatments for skin whitening are available today, but few of them are completely adequate, especially owing to the carcinogenic potential attributed to classical drugs like hydroquinone, arbutin and kojic acid. To provide an alternative and safer technology for whitening
Thomas J Jaworek et al.
Orphanet journal of rare diseases, 7, 44-44 (2012-06-28)
Oculocutaneous albinism (OCA) is caused by a group of genetically heterogeneous inherited defects that result in the loss of pigmentation in the eyes, skin and hair. Mutations in the TYR, OCA2, TYRP1 and SLC45A2 genes have been shown to cause
Rongchao Zhang et al.
Evidence-based complementary and alternative medicine : eCAM, 2020, 2582579-2582579 (2020-08-11)
Whitening cosmetics market has a bright future, and pure natural whitening products of traditional Chinese medicine have always been a research hotspot. In this research, the whitening active ingredient of Chinese medicine Trichosanthes pulp was isolated and purified for the
Tyrosinase inhibitory effects and inhibition mechanisms of nobiletin and hesperidin from citrus peel crude extracts.
Zhang, et al.
Journal of Enzyme Inhibition and Medicinal Chemistry, 22, 83-90 (2019)
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