They're made up of multiple subunits of an organic molecule called isoprene, which has five carbon atoms.

它们是由多个有机分子基组成的，含有五个碳原子的异戊二烯。

DNA is a polymer because it is a large molecule composed of repeated subunits, the nucleotides.

DNA 是一种聚合物，因为它是由重复的基，即组成的大分子。

There are 4 globin subunits, typically two alpha and two beta, and each one has its own heme group.

它有4个基，典型的为两个α基和两个β基，每一个都有对应的血红素。

There are four globin subunits, typically two alpha and two beta, and each one has its own heme group.

它含有四个球蛋白基，通常是2个α基和2个β基，每个基都含有血红素分子。

Recombinant protein subunit vaccine does not need a high-grade biosafety laboratory for manufacture, and can quickly achieve large-scale production.

重组单位蛋白疫苗不需要高等级的生物安全实验室进行生产，可以快速实现规模化生产。

Both subunit and conjugate vaccines contain only pieces of the pathogens they protect against.

单位疫苗和结合疫苗都只包含它们可以抵御的病原体片段。

And then it has these two regulatory subunits.

然后它具有这两个调节基。

And so what happens is the alpha subunit is going to attach to adenylyl cyclase.

于是，α单位会与腺环化酶结合。

Pull up a subunit surfboard and ride through the nose with me, adventurers.

抓稳副单位冲浪板，和我一起冲鼻头吧，冒险家们。

The acellular pertussis vaccine and influenza vaccine (in shot form) are examples of subunit vaccines.

无细胞百日咳疫苗和流感疫苗（注射形式）是单位疫苗的例子。

It's got a number of different subunits.

它由多个不同的单位组成。

Subunit vaccines use only part of a target pathogen to provoke a response from the immune system.

单位疫苗仅使用目标病原体的一部分来激发免疫系统的反应。

Another type of subunit vaccine can be created via genetic engineering.

另一种单位疫苗可以通过基因工程制造。

That G protein can eventually release an alpha subunit which then makes cyclic AMP.

这种G蛋白最终会释放出一个α单位，该单位随后生成环磷腺（cAMP）。

These subunits can be arranged in a line, or form rings, or both, leading to a diverse collection of over 30,000 known compounds.

这些基被重组成线性或者是环形，或者是两者皆有，形成了如今超过三万种已知的化合物。

Each hemoglobin molecule is made of four subunits, each containing a heme group that can bind one molecule of oxygen.

每个血红蛋白分子由四个基组成，每个基都包含一个可以结合一个氧分子的血红素基团。

It's got these units on the bottom, they're called subunits.

它的底部有这些单元，称为基。

But once the alpha subunit is in place, it's ready to do it's job as an enzyme.

但一旦α基就位，它就准备好作为酶来执行其功能了。

This heme is a large molecule that's made up of four pyrrole subunits that forms a ring, and this structure is called a porphyrin.

血红素是个大分子，由四个吡咯基形成环形，这个结构叫作卟啉。

Since the mid-1980s, genetic engineering has led to subunit and conjugate vaccines against diseases such as human papillomavirus, HPV and hepatitis.

自20世纪80年代中期以来，基因工程技术催生了针对人乳头瘤病毒（HPV）和肝炎等疾病的单位疫苗和结合疫苗。