CYSTEINE

Pronunciation (US):

(GB):

 Dictionary entry overview: What does cysteine mean? 

• CYSTEINE (noun)
  The noun CYSTEINE has 1 sense:

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

  Familiarity information: CYSTEINE used as a noun is very rare.

 Dictionary entry details 

• CYSTEINE (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting substances

Hypernyms ("cysteine" is a kind of...):

amino acid; aminoalkanoic acid (organic compounds containing an amino group and a carboxylic acid group)

 Context examples 

Caspases are a family of intracellular cysteine proteinases involved in inflammation and apoptosis.

(Caspase, NCI Thesaurus)

Enzymes that use cysteine residues to transport metals such as copper and zinc throughout the body.

(Metallothionein, NCI Thesaurus)

Methylated-DNA—protein-cysteine methyltransferase (207 aa, ~22 kDa) is encoded by the human MGMT gene.

(Methylated-DNA--Protein-Cysteine Methyltransferase, NCI Thesaurus)

Enzyme that transfers methyl groups from O(6) methylguanine and other methylated moities of DNA, to a cysteine residue in itself, thus repairing alkylated DNA in a single step reaction

(Methylated-DNA--Protein-Cysteine Methyltransferase, NIH CRISP Thesaurus)

The beneficial effects of the calorie restriction could be blocked, however, by providing the mice with extra methionine and cysteine.

(Pathways Underlying the Benefits of Calorie Restriction, NIH)

Different types exist depending on the cysteine residue positions.

(C3H1 Zinc Finger, NCI Thesaurus)

Domains in DNA- and RNA-binding proteins that contain amino acids which are folded into a single structural unit around a zinc atom that links two cysteines and two histidines.

(C2H2 Zinc Finger, NCI Thesaurus)

In the classic zinc finger, one zinc atom is bound to two cysteines and two histidines.

(C2H2 Zinc Finger, NLM, Medical Subject Headings)

This allele, which encodes methylated-DNA—protein-cysteine methyltransferase protein, plays a role in the repair of O6-alkylguanine residues in DNA.

(MGMT wt Allele, NCI Thesaurus)

The Fab fragments are obtained through papain digestion in the presence of cysteine.

(Monoclonal Antibody 48.7 F(ab), NCI Thesaurus)