disulfide

disulfide的音标是[dis"sɪfaɪd]，翻译为“二硫化物；二硫键”。

记忆技巧：dis-表示“除去，分离”，-ulfide表示“硫化物”，整体意思是“除去硫化物中的硫”。

"Disulfide"这个词来源于拉丁语"dis"（表示“两个”）和"sulphur"（硫磺）的复合词，因此它的含义是“两个硫磺连接的化合物”。

变化形式：在英语中，"disulfide"是词尾形式，表示该词的词性为名词。

相关单词：

1. "Sulfaquinoxaline" - 一种磺胺类抗菌剂，由"sulphur"和"oxalic acid"组成，表示含有两个硫磺连接的氧原子。

2. "Disulphide" - 一种化学物质，由两个硫原子通过一个共价键连接而成，是"disulfide"的动词形式。

3. "Sulphuric acid" - 一种酸，由硫磺和氧原子组成，是"disulfide"的形容词形式。

4. "Sulfenic acid" - 一种酸性化合物，由硫氧键连接的碳原子和氧原子组成。

5. "Disulphite" - 一种硫化物，由两个硫原子通过一个共价键连接而成。

6. "Sulfenylamine" - 一种含硫化合物，由硫氧键连接的氮原子和氢原子组成。

7. "Disulphide bridge" - 指两个硫原子通过一个共价键连接而成的化学结构。

8. "Sulfenyl" - 指含有硫氧键的化学结构。

9. "Disulphide bond" - 指两个硫原子通过共价键连接而成的化学键。

10. "Sulfinic acid" - 一种酸性化合物，由硫氧键连接的碳原子和氢氧根离子组成。

常用短语：

1. disulfide bond

2. disulfide bridge

3. disulfide interchange

4. disulfide-rich

5. disulfide-linked

6. disulfide mutants

7. disulfide-rich protein

例句：

1. The protein contains many disulfide bonds, making it highly stable.

2. The mutant protein lacks disulfide bonds, making it more labile.

3. Disulfide bonds are crucial for maintaining protein structure and function.

4. The disulfide-rich peptide exhibits antioxidant activity in vitro.

5. Disulfide bridges can stabilize protein conformation and facilitate protein folding.

6. Mutations that disrupt disulfide bonds can lead to misfolding and aggregation of proteins.

7. Disulfide-rich proteins are commonly found in plants and are important for their defense against pathogens and abiotic stress.

英文小作文：

Disulfide bonds are crucial for maintaining the stability and function of proteins, which are essential for life processes. These covalent bonds are formed between two cysteine residues through the formation of a disulfide bridge, which stabilizes the protein structure and prevents it from unfolding or misfolding. Disulfide bonds are found in many proteins, including enzymes, antibodies, and structural proteins such as collagens and elastins. They also play an important role in the folding of proteins, which is crucial for their function and activity. Disulfide bonds are often found in proteins that are exposed to the external environment, such as cell surface proteins and secreted proteins, where they provide protection against denaturation and degradation. Understanding the role of disulfide bonds in proteins is crucial for developing new therapeutic strategies to treat diseases caused by misfolding or aggregation of proteins, such as neurodegenerative diseases and proteinopathies.