其它促成催化的因素来自结合水分子，金属离子或其它因子。

Additional contributions to catalysis can come from bound water molecules, metal ions, or other factors.

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钱博士又改良了染色颗粒使之对其他的分子也能产生作用，比如被称作凝血酶的血液凝固因子。

And Dr Tsien has even modified the dye to respond to other molecules, such as a blood-clotting factor called thrombin.

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有些有机物只用这种简单的化学反应来产生光，但是很多其他的还需要叫做“辅因子”的分子，来帮助其工作。

Some organisms produce light using just this simple chemical reaction, but many require additional helper molecules, known as cofactors, to make it work.

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An example is production of certain molecules called cytokines by T-cells that activate themselves.

细胞能分泌这类叫做细胞因子的分子,实现自激活

耶鲁公开课 - 生物医学工程探索课程节选

When transcription happens and it turns out that there's a whole biology associated with this, including molecules that are floating around inside your cells called transcription factors, and their job-- they are molecules that are about particular genes and what some of the sequences and are able to turn on those genes inside cells, to make them transcribe.

研究证明,当细胞转录时,还有与之相关的一整套生物机制在运作,包括一种在你细胞中飘浮着的,称为转录因子的分子,它们的工作就是,它们知道该转录哪一段基因,该转录哪一段序列,然后把这些细胞中的基因激活,进行转录

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The receptor for estrogen is a special molecule called a DNA binding factor.

雌激素受体是一类特殊的分子,叫做DNA结合因子

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