cysteine

Noun

Meaning

an amino acid containing sulfur that is found in most proteins; oxidizes on exposure to air to form cystine

Source: WordNet

Synonyms

alanine glycine serine sistine tryptophan asparagine cystine glutamic acid food additive proline glutamine threonine arginine valine leucine
Show all synonyms

Hypernyms

amino acid aminoalkanoic acid

Related terms

homocysteine

Phrases with the word

cysteine protease cysteine-containing cysteine-rich

Examples

Beta subunits have four cysteine -rich repeated sequences. Source: Internet

De-aminated alanine, cysteine, glycine, serine, and threonine are converted to pyruvate and can consequently either enter the citric acid cycle as oxaloacetate (an anaplerotic reaction) or as acetyl-CoA to be disposed of as CO 2 and water. Source: Internet

Excluding the few exceptions where methionine may act as a redox sensor (e.g. citation ), methionine residues do not have a catalytic role. citation This is in contrast to cysteine residues, where the thiol group has a catalytic role in many proteins. Source: Internet

Inside the cell, disulfide bridges between cysteine residues within a polypeptide support the protein's tertiary structure. Source: Internet

Biology Selenocysteine has both a lower pKa (5.47) and a lower reduction potential than cysteine. Source: Internet

Disulfide bonds (S-S bonds) between cysteine residues in peptide chains are very important in protein assembly and structure. Source: Internet

Close letter words and terms

cystein cysteinal cysteinate cysteine protease cysteine-containing cysteine-rich