Definition of cystine in English:

cystine

noun ˈsɪstɪnˈsɪstiːnˈsɪstin

mass nounBiochemistry

A compound which is an oxidized dimer of cysteine and is the form in which cysteine often occurs in organic tissue.
〔生化〕胱氨酸，双硫丙氨酸
Chemical formula: C₆H₁₂N₂O₄S₂
Example sentencesExamples
- In 1812, William Hyde Wollaston found a substance in urine that he identified as a cystic oxide, and was later named cystine.
- Cysteine in the extracellular space is mostly oxidized to cystine.
- Glutathione conjugation uses Nacetylcysteine, cysteine, and methionine; cystine is used for sulfation; and glucuronidation requires pantothenic acid.
- Zinc is required for the incorporation of cystine into keratin.
- Stones can be composed of calcium, oxalate, urate, cystine, xanthine, phosphate, or all of these.
- The proteins of soyabean yields all essential amino acids in adequate amounts, except methionine and cystine.
- Once inside a cell, cystine is rapidly reduced to cysteine that, as a precursor of GSH, undergoes GSH synthesis.
- Cysteamine enters the lysosomes by a specific transporter and converts cystine to cysteine and cysteine-cysteamine mixed disulfide.
- Decomposition of urine containing cystine or pus will have the odor of rotten eggs.
- The sulfur-containing amino acids are methionine, cysteine, cystine, homocysteine, homocystine, and taurine.

Origin

Mid 19th century: from Greek kustis 'bladder' (because it was first isolated from urinary calculi) + -ine⁴.

Definition of cystine in US English:

cystine

nounˈsistēnˈsɪstin

Biochemistry

A compound which is an oxidized dimer of cysteine and is the form in which cysteine often occurs in organic tissue.
〔生化〕胱氨酸，双硫丙氨酸
Chemical formula: C₆H₁₂N₂O₄S₂
Example sentencesExamples
- Cysteamine enters the lysosomes by a specific transporter and converts cystine to cysteine and cysteine-cysteamine mixed disulfide.
- Cysteine in the extracellular space is mostly oxidized to cystine.
- Stones can be composed of calcium, oxalate, urate, cystine, xanthine, phosphate, or all of these.
- In 1812, William Hyde Wollaston found a substance in urine that he identified as a cystic oxide, and was later named cystine.
- Zinc is required for the incorporation of cystine into keratin.
- Decomposition of urine containing cystine or pus will have the odor of rotten eggs.
- Glutathione conjugation uses Nacetylcysteine, cysteine, and methionine; cystine is used for sulfation; and glucuronidation requires pantothenic acid.
- The sulfur-containing amino acids are methionine, cysteine, cystine, homocysteine, homocystine, and taurine.
- Once inside a cell, cystine is rapidly reduced to cysteine that, as a precursor of GSH, undergoes GSH synthesis.
- The proteins of soyabean yields all essential amino acids in adequate amounts, except methionine and cystine.

Origin

Mid 19th century: from Greek kustis ‘bladder’ (because it was first isolated from urinary calculi) + -ine.

单词	cystine
释义	Definition of cystine in English: cystine noun ˈsɪstɪnˈsɪstiːnˈsɪstin mass nounBiochemistry A compound which is an oxidized dimer of cysteine and is the form in which cysteine often occurs in organic tissue. 〔生化〕胱氨酸，双硫丙氨酸 Chemical formula: C₆H₁₂N₂O₄S₂ Example sentencesExamples In 1812, William Hyde Wollaston found a substance in urine that he identified as a cystic oxide, and was later named cystine. Cysteine in the extracellular space is mostly oxidized to cystine. Glutathione conjugation uses Nacetylcysteine, cysteine, and methionine; cystine is used for sulfation; and glucuronidation requires pantothenic acid. Zinc is required for the incorporation of cystine into keratin. Stones can be composed of calcium, oxalate, urate, cystine, xanthine, phosphate, or all of these. The proteins of soyabean yields all essential amino acids in adequate amounts, except methionine and cystine. Once inside a cell, cystine is rapidly reduced to cysteine that, as a precursor of GSH, undergoes GSH synthesis. Cysteamine enters the lysosomes by a specific transporter and converts cystine to cysteine and cysteine-cysteamine mixed disulfide. Decomposition of urine containing cystine or pus will have the odor of rotten eggs. The sulfur-containing amino acids are methionine, cysteine, cystine, homocysteine, homocystine, and taurine. Origin Mid 19th century: from Greek kustis 'bladder' (because it was first isolated from urinary calculi) + -ine⁴. Definition of cystine in US English: cystine nounˈsistēnˈsɪstin Biochemistry A compound which is an oxidized dimer of cysteine and is the form in which cysteine often occurs in organic tissue. 〔生化〕胱氨酸，双硫丙氨酸 Chemical formula: C₆H₁₂N₂O₄S₂ Example sentencesExamples Cysteamine enters the lysosomes by a specific transporter and converts cystine to cysteine and cysteine-cysteamine mixed disulfide. Cysteine in the extracellular space is mostly oxidized to cystine. Stones can be composed of calcium, oxalate, urate, cystine, xanthine, phosphate, or all of these. In 1812, William Hyde Wollaston found a substance in urine that he identified as a cystic oxide, and was later named cystine. Zinc is required for the incorporation of cystine into keratin. Decomposition of urine containing cystine or pus will have the odor of rotten eggs. Glutathione conjugation uses Nacetylcysteine, cysteine, and methionine; cystine is used for sulfation; and glucuronidation requires pantothenic acid. The sulfur-containing amino acids are methionine, cysteine, cystine, homocysteine, homocystine, and taurine. Once inside a cell, cystine is rapidly reduced to cysteine that, as a precursor of GSH, undergoes GSH synthesis. The proteins of soyabean yields all essential amino acids in adequate amounts, except methionine and cystine. Origin Mid 19th century: from Greek kustis ‘bladder’ (because it was first isolated from urinary calculi) + -ine.
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