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词汇 peptide
释义

Definition of peptide in English:

peptide

noun ˈpɛptʌɪdˈpɛptaɪd
Biochemistry
  • A compound consisting of two or more amino acids linked in a chain, the carboxyl group of each acid being joined to the amino group of the next by a bond of the type OCNH.

    〔生化〕-OC-NH-肽;缩氨酸

    Example sentencesExamples
    • Among the amino acids of the peptide, the most dramatic change was the Phe residue.
    • The peptide contains complementary amino acid sequences, with alternating positive and negative charges.
    • If there are only two amino acids then the peptide is a dipeptide.
    • Transport of peptides and amino acids has been demonstrated in scutella isolated from barley, wheat, rice, and maize.
    • These peptides are composed of amino acids, but are much smaller than proteins.

Origin

Early 20th century: from German Peptid, back-formation from Polypeptid 'polypeptide'.

Definition of peptide in US English:

peptide

nounˈpeptīdˈpɛptaɪd
Biochemistry
  • A compound consisting of two or more amino acids linked in a chain, the carboxyl group of each acid being joined to the amino group of the next by a bond of the type OCNH.

    〔生化〕-OC-NH-肽;缩氨酸

    Example sentencesExamples
    • Among the amino acids of the peptide, the most dramatic change was the Phe residue.
    • Transport of peptides and amino acids has been demonstrated in scutella isolated from barley, wheat, rice, and maize.
    • If there are only two amino acids then the peptide is a dipeptide.
    • The peptide contains complementary amino acid sequences, with alternating positive and negative charges.
    • These peptides are composed of amino acids, but are much smaller than proteins.

Origin

Early 20th century: from German Peptid, back-formation from Polypeptid ‘polypeptide’.

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