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Substance Name: Polyubiquitin
RN: 120904-94-1


  • An oligomer formed from the repetitive linking of the C-terminal glycine of one UBIQUITIN molecule via an isopeptide bond to a lysine residue on a second ubiquitin molecule. It is structurally distinct from UBIQUITIN C, which is a single protein containing a tandemly arrayed ubiquitin peptide sequence.
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Names and Synonyms

Name of Substance

  • Polyubiquitin

MeSH Heading

  • Polyubiquitin


  • Ubi-1 maize polyubiquitin gene product
  • Ubi-1 protein

Systematic Name

  • Ubiquitin, poly-

Registry Numbers

CAS Registry Number

  • 120904-94-1

System Generated Number

  • 0120904941