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peptide

peptide

11 5.8
A short chain of amino acids that forms part of proteins
  • noun
  • /ˈpɛpˌtaɪd/
  • Specialized
translation icon : péptido
  • Glycosaminoglycans are covalently linked to peptide chains to form high-molecular-weight complexes called proteoglycans.
  • natriuretic peptide
  • synthetic peptide
  • glucagon-like peptide

Now there, there are transporters for for small peptides in the guts.

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Examples

  • Research suggests that the peptide YY can help regulate hunger and promote weight loss.

  • Dynamic acquisition was done immediately after peptide administration in 13 patients.

    Academic text (1995)
  • So this is probably one of the peptide chains in our mystery protein.

  • They all have the same sort of peptide in the protein.

  • A proprietary peptide called OS One.

  • I remember you could measure for the first time chemicals, they are called peptides in the brain.

  • Nevertheless, assays for APP and Beta/A4 peptide should help the search for effective treatments.

    Academic text (1992)
  • There is some evidence that substance P, an 11-amino-acid peptide, is involved in the itching response in some diseases.

    Academic text (1999)
  • Scientists are studying the effects of a new peptide vaccine designed to enhance the immune response.

  • The laboratory synthesized a peptide chain composed of multiple amino acids to aid in drug development.

Compounds

peptide bond
  • Specialized
1 5.5

A chemical link that joins two amino acids to form a protein chain

peptide linkage
  • Specialized
6.7

The chemical bond that joins two amino acids in a protein chain

How Long

protein
  • Specialized
435 2.8
polypeptide
  • Specialized
2 6.6
peptide
  • Specialized
11 5.8
tripeptide
  • Specialized
6.4
dipeptide
  • Specialized
1 6.9
amino acid
  • Specialized
32 3.4

Surface Forms

peptide singular
peptides plural

Morphology

peptide = pept + ide

The combining form 'pept-' is a bound scientific morpheme (not a standalone English word) and 'peptide' is a technical biochemical term, so learners cannot reliably derive its meaning from familiar English components.

Etymology

The word peptide comes from the Greek root pept-, from peptein, meaning 'to cook' or 'to digest'. So a peptide is like a small 'digested' piece of a protein, a short chain of amino acids formed when larger proteins are broken down.