polypeptide

English

Etymology

Etymology tree

Proto-Indo-European *pleh₁-der.

Proto-Indo-European *polh₁ús

Ancient Greek πολῠ́ς (polŭ́s)lbor.

English poly-

Proto-Indo-European *pekʷ-

Proto-Indo-European *pékʷ-ye-

Proto-Hellenic *pét͏̌t͏̌ō

Ancient Greek πέσσω (péssō)bf.

Ancient Greek πέπτω (péptō)

Ancient Greek πεπτόν (peptón)der.

German Peptonbor.

English peptone

Proto-Indo-European *dʰeh₁-der.

Proto-Italic *-iðos

Latin -idusder.

English -ide

▲

German Pepton

▲

Latin -idusder.

German -id

German Peptidbor.

English peptide

English polypeptide

From poly- + peptide.

Pronunciation

• Audio (Southern England):

  (file)

Noun

polypeptide (plural polypeptides)

1. (organic chemistry) Any polymer of (same or different) amino acids joined via peptide bonds.
2. (biochemistry) Any such polymer that is not folded into a secondary structure of a protein.
3. (biochemistry) A small protein containing up to 100 amino acids; see also oligopeptide.

Derived terms

• copolypeptide
• glycopolypeptide
• homopolypeptide
• lipopolypeptide
• pancreatic polypeptide
• polypeptidase
• polypeptide chain
• polypeptidic
• propolypeptide

Translations

organic chemistry: any polymer amino acids joined via peptide bonds

• Catalan: polipèptid m
• Chinese:

  Cantonese: 多肽 (do¹ taai³)

  Mandarin: 多肽 (zh) (duōtài)

• Esperanto: polipeptido
• Finnish: peptidi (fi)
• French: polypeptide (fr) m
• Galician: polipeptídeo m
• Italian: polipeptide (it) f
• Japanese: ポリペプチド (poripepuchido)
• Kazakh: полипептид (polıypeptiyd)
• Portuguese: ^{(please verify)} polipeptídeo m
• Spanish: polipéptido m
• Turkish: polipeptit

biochemistry: any such polymer that is not folded into a secondary structure of a protein

• Chinese:

  Cantonese: 多肽 (do¹ taai³)

  Mandarin: 多肽 (zh) (duōtài)

• Finnish: polypeptidi
• French: polypeptide (fr) m
• Galician: ^{(please verify)} polipeptídeo m
• Italian: polipeptide (it) f
• Portuguese: polipeptídeo m

biochemistry: a small protein containing up to 100 amino acids

• Chinese:

  Cantonese: 多肽 (do¹ taai³)

  Mandarin: 多肽 (zh) (duōtài)

• Finnish: polypeptidi
• French: polypeptide (fr) m
• Galician: ^{(please verify)} polipeptídeo m
• Italian: polipeptide (it) f
• Portuguese: polipeptídeo m

See also

• actinomycin
• angiotensin
• peptide
• proinsulin
• secretin

French

Pronunciation

• Audio (France (Lyon)):

  (file)

Noun

polypeptide m (plural polypeptides)

1. polypeptide

Further reading

• “polypeptide”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012