In oxidizing conditions, cysteine residues can form disulfide bonds to produce what?

Study for the Manor Preboards Module 2 Test. Use flashcards and multiple choice questions that include hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

In oxidizing conditions, cysteine residues can form disulfide bonds to produce what?

Explanation:
When two cysteine residues undergo oxidation, their thiol (-SH) groups form a covalent disulfide bond (-S-S). This linkage converts the pair into cystine, the oxidized dimeric form of cysteine. Disulfide bonds help stabilize protein structures, especially when they form between different parts of a chain or between different chains. Sulfite and sulfate are inorganic sulfur species and don’t result from forming disulfide bonds. The product of this oxidation is cystine, not the other options.

When two cysteine residues undergo oxidation, their thiol (-SH) groups form a covalent disulfide bond (-S-S). This linkage converts the pair into cystine, the oxidized dimeric form of cysteine. Disulfide bonds help stabilize protein structures, especially when they form between different parts of a chain or between different chains. Sulfite and sulfate are inorganic sulfur species and don’t result from forming disulfide bonds. The product of this oxidation is cystine, not the other options.

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