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单词 Protein molecule
释义

Protein molecule

英语例句库

The PET fibre,when aminolyzed with ethyleneamine,can introduce amin oradical which will linkwith protein molecules,so as to improve the serviceability of the fabric.

涤纶经氨解改性后,其纤维上可引入氨基,有利于与丝素蛋白质分子结合,以提高涤纶织物的服用性能。

Cistron A unit of function, i.e. a segment of DNA that determines a single polypeptide chain of a protein molecule or a messenger RNA molecule.

是一个功能上的结构,它是决定蛋白质分子的一条简单多肽链或信使RNA分子的DNA片断。

原声例句
Crash Course 解剖生理学篇

The ground substance is flexible, because it's mostly made of big ol' starch and protein molecules mixed with water.

基本物质很有弹性,因为它主要由大的淀粉和蛋白质分子与水混合而成。

经济学人(汇总)

The treatments in question employ antibodies. These are special protein molecules made by the immune system in response to infection.

上述治疗方法使用了抗体。抗体是免疫系统对感染做出反应时产生的特殊蛋白质分子。

TED-Ed(视频版)

Afterwards, the macrophages release protein molecules called cytokines whose job is to recruit and organize more virus-busting cells from your immune system.

然后巨噬细胞会释放一种叫作细胞因子的蛋白质分子它会从免疫系统中征集并组织更多的细胞来杀死病毒。

TED演讲(视频版) 2022年4月合集

That means that you have as many protein molecules in your body as there are stars in the known universe.

这意味着你体内的蛋白质分子数量与已知宇宙中的恒星数量一样多。

双语版 TED-Ed 演讲精选

When you later cook eggs in this PTFE-coated pan, the extra tight carbon-fluorine bonds just ignore the water and fat and protein molecules in the eggs.

当而后你在PTFE层上面煎鸡蛋时,其中的紧密的碳氟链会无视鸡蛋中的水,脂肪和蛋白质分子。

2017级专外有声

These striations are caused by the arrangement of the protein molecules within the fibers that produce shortening or contraction of the fiber.

这些横纹是由纤维内使其收缩的蛋白质分子排列而形成的。

TED演讲(视频版) 2022年4月合集

Each of the 30 trillion cells in your body -- that's three with 13 zeros -- contains between one and 10 billion protein molecules.

您体内的 30 万亿个细胞中的每一个——即三个细胞中有 13 个零——都包含 1 到 100 亿个蛋白质分子。

Crash Course 解剖生理学篇

Unlike other connective tissues, it doesn't really have what you would call fibers, but instead has a bunch of protein dissolved in the plasma, and those protein molecules will form fiber-like structures when your blood needs to clot.

与其他结缔组织不同,它并没有所谓的纤维,而是有一堆溶解在血浆中的蛋白质,当血液需要凝结时,这些蛋白质分子会形成类似纤维的结构。

经济学人(汇总)

Evolution has provided a goodly range of these in the form of enzymes, which are large, complicated and sometimes temperamental protein molecules, but which have the advantage that they can create pure versions of what are known as optical isomers.

进化以酶的形式提供了大量的这类物质,这些酶是大型的、复杂的、有时还会变化无常的蛋白质分子,但它们的优点是可以产生被称为光学异构体的纯净版本。

中文百科

蛋白质 Protein

(重定向自Protein molecule)
肌球蛋白三维结构的飘带图,其主要由α螺旋所构成。
蛋白质结构中氨基酸和丙氨酸通过肽键(用方块标出)连接在一起。
核糖体产生一种蛋白质,使用信使RNA模板。
分子伴侣的晶体结构。分子伴侣帮助蛋白质折叠。

蛋白质是一种由氨基酸分子组成的有机化合物,旧称“”。氨基酸分子呈线性排列,相邻氨基酸残基的羧基和氨基通过肽键连接在一起。蛋白质的氨基酸串行是由对应基因所编码。除了遗传密码所编码的20种“标准”氨基酸,在蛋白质中,某些氨基酸残基还可以被翻译后修饰而发生化学结构的变化,从而对蛋白质进行激活或调控。多个蛋白质可以一起,往往是通过结合在一起形成稳定的蛋白质复合物,发挥某一特定功能。

与其他生物大分子(如多糖和核酸)一样,蛋白质是地球上生物体中的必要组成成分,参与了细胞生命活动的每一个进程。酶是最常见的一类蛋白质,它们催化生物化学反应,尤其对于生物体的代谢至关重要。除了酶之外,还有许多结构性或机械性蛋白质,如肌肉中的肌动蛋白和肌球蛋白,以及细胞骨架中的微管蛋白(参与形成细胞内的支撑网络以维持细胞外形)。另外一些蛋白质则参与细胞信号传导、免疫反应、细胞黏附和细胞周期调控等。同时,蛋白质也是动物饮食中必需的营养物质,这是因为动物自身无法合成所有氨基酸,动物需要和必须从食物中获取必需氨基酸。通过消化过程将蛋白质降解为自由氨基酸,动物就可以将它们用于自身的代谢。

英语百科

Protein 蛋白质

(重定向自Protein molecule)
A representation of the 3D structure of the protein myoglobin showing turquoise α-helices. This protein was the first to have its structure solved by X-ray crystallography. Towards the right-center among the coils, a prosthetic group called a heme group (shown in gray) with a bound oxygen molecule (red).
Chemical structure of the peptide bond (bottom) and the three-dimensional structure of a peptide bond between an alanine and an adjacent amino acid (top/inset)
A ribosome produces a protein using mRNA as template
The crystal structure of the chaperonin, a huge protein complex. A single protein subunit is highlighted. Chaperonins assist protein folding.

Proteins (/ˈprˌtnz/ or /ˈprti.nz/) are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within living organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding into a specific three-dimensional structure that determines its activity.

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更新时间:2025/6/21 20:56:03