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单词 polypeptide
释义

Definition of polypeptide in English:

polypeptide

noun ˌpɒlɪˈpɛptʌɪdˌpɑliˈpɛptaɪd
Biochemistry
  • A linear organic polymer consisting of a large number of amino-acid residues bonded together in a chain, forming part of (or the whole of) a protein molecule.

    〔生化〕多肽,缩多氨酸

    as modifier a polypeptide chain
    Example sentencesExamples
    • They both develop random transient beta-strands across the whole polypeptide chain.
    • Unlike larger polypeptides and proteins, small nucleic acid duplexes and hairpins do not have a dense core to which this effect would apply.
    • The LDL receptor is a polypeptide of 839 amino acids that spans the plasma membrane.
    • These enzymes break down proteins into polypeptides and then into amino acids, which are absorbed through the gut wall into the bloodstream.
    • It is a basic protein with a single polypeptide chain and acts on cellular and model lipid membranes.

Origin

Early 20th century: from poly- 'many' + peptone + -ide.

Definition of polypeptide in US English:

polypeptide

nounˌpälēˈpeptīdˌpɑliˈpɛptaɪd
Biochemistry
  • A linear organic polymer consisting of a large number of amino-acid residues bonded together in a chain, forming part of (or the whole of) a protein molecule.

    〔生化〕多肽,缩多氨酸

    as modifier a polypeptide chain
    Example sentencesExamples
    • It is a basic protein with a single polypeptide chain and acts on cellular and model lipid membranes.
    • They both develop random transient beta-strands across the whole polypeptide chain.
    • These enzymes break down proteins into polypeptides and then into amino acids, which are absorbed through the gut wall into the bloodstream.
    • Unlike larger polypeptides and proteins, small nucleic acid duplexes and hairpins do not have a dense core to which this effect would apply.
    • The LDL receptor is a polypeptide of 839 amino acids that spans the plasma membrane.

Origin

Early 20th century: from poly- ‘many’ + peptone + -ide.

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更新时间:2025/7/6 7:40:11