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ubiquitin

Syllabification: u·bi·qui·tin
Pronunciation: /yo͞oˈbikwitin
 
/

Definition of ubiquitin in English:

noun

Biochemistry
A compound found in living cells that plays a role in the degradation of defective and superfluous proteins. It is a single-chain polypeptide.
Example sentences
  • This suggests that independent protein degradation pathways for ubiquitin, as well as for the proteasome complex, may exist in strawberry fruit.
  • The protein is linked to a second protein, ubiquitin, when the cell detects that DNA damage has occurred.
  • Ubp3 is a deubiquitination enzyme and a member of a large family of cysteine proteases that cleave ubiquitin moieties from protein substrates.

Origin

1970s: from ubiquitous + -in1.

Definition of ubiquitin in:

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