tyrosinase

美 'tairәsineis, tai'rɔsi,neis
英 'tairәsineis, tai'rɔsi,neis
数据源: static_word_details
一种催化酪氨酸氧化生成黑色素的关键酶,广泛存在于动植物及微生物中。
名词

用法要点

生物化学中的核心作用

该酶是黑色素合成途径的限速步骤,对皮肤、毛发和眼睛的颜色形成至关重要。

• Tyrosinase activity is the rate-limiting step in melanin synthesis.
• The enzyme converts tyrosine into DOPA and subsequently into melanin.

医学与病理学关联

酪氨酸酶活性异常升高常导致色素沉着症,而活性缺失则可能导致白化病。

• Excessive tyrosinase activity is often associated with hyperpigmentation disorders.
• Albinism results from a deficiency in the enzyme tyrosinase.

化妆品与护肤应用

许多美白产品通过抑制酪氨酸酶的活性来减少黑色素生成,从而淡化色斑。

• Many skin-whitening agents work by inhibiting tyrosinase activity.
• The cream contains ingredients that effectively block the enzyme.

基础例句

Tyrosinase is essential for the production of melanin in human skin.

酪氨酸酶对于人类皮肤中黑色素的产生至关重要。

Scientists are developing new inhibitors to block tyrosinase activity.

科学家们正在开发新的抑制剂来阻断酪氨酸酶的活性。

The mushroom contains a high level of tyrosinase, which can stain the knife.

这种蘑菇含有高水平的酪氨酸酶,可能会把刀染黑。

高级例句

Polymorphisms in the TYR gene encoding tyrosinase have been linked to variations in skin pigmentation among different ethnic groups.

编码酪氨酸酶的TYR基因的多态性与不同种族间皮肤色素沉着的差异有关。

Recent studies suggest that natural extracts from specific plants can competitively inhibit tyrosinase without causing cytotoxicity.

最近的研究表明,特定植物提取物可以竞争性抑制酪氨酸酶且不会引起细胞毒性。

In the context of vitiligo, the destruction of melanocytes leads to a localized loss of tyrosinase function.

在白癜风背景下,黑素细胞的破坏导致酪氨酸酶功能局部丧失。

高频搭配

verb

inhibit tyrosinaseactivate tyrosinase

adjective

high tyrosinase activitylow tyrosinase levels

noun

tyrosinase inhibitortyrosinase gene

adverb

rapidly tyrosinasesignificantly tyrosinase

preposition

tyrosinase in melanocytestyrosinase from fungi

phrase

tyrosinase deficiencytyrosinase production

常见错误

❌ 错误:The tyrosinase is used to make white color in skin.
✓ 正确:Tyrosinase is responsible for producing melanin, which gives skin its color.

酪氨酸酶的作用是产生黑色素(melanin),而非直接制造白色;它是色素形成的关键,缺失才会导致变白。

❌ 错误:We need to increase the tyrosinase to get fairer skin.
✓ 正确:To achieve a lighter complexion, one must inhibit or reduce tyrosinase activity.

想要皮肤更白皙,通常需要抑制酪氨酸酶活性以减少黑色素生成,而不是增加它。

近义词辨析

melanogenesis

Melanogenesis 指黑色素生成的整个生理过程,而 tyrosinase 是催化该过程的关键酶。前者是过程,后者是工具/物质。

The regulation of melanogenesis is complex, involving multiple enzymes including tyrosinase.

pigment

Pigment 泛指色素(如黑色素、胡萝卜素等),是一个广义词;tyrosinase 特指合成黑色素的那一种酶。

Tyrosinase is the primary enzyme responsible for synthesizing the pigment melanin.