Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

NLM Logo

Polyubiquitin MeSH Descriptor Data 2026


MeSH Heading
Polyubiquitin
Tree Number(s)
D12.776.947.500.500
Unique ID
D025821
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D025821
Scope Note
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.
Registry Numbers
120904-94-1
CAS Type 1 Name
Ubiquitin, poly-
Previous Indexing
Polymers (1991-1993)
Ubiquitins (1994-2001)
Public MeSH Note
2002; POLYUBIQUITIN was indexed under UBIQUITIN & BIOPOLYMERS 1994-2001, and under POLYMERS 1991-1993
History Note
2002; use POLYUBIQUITIN (NM) 1991-2001
Date Introduced
2002/01/01
Last Updated
2013/07/09
Polyubiquitin Preferred
page delivered in 0.112s