Words similar to polyubiquitin

Example sentences for: polyubiquitin

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It has been proposed that long polyubiquitin chains commit a substrate to unfolding and degradation by the proteasome, whereas short chains are poor substrates because they are edited by deubiquitinating enzymes, resulting in premature substrate release (Eytan et al.
Proteins are targeted for proteasome-mediated degradation by attachment of a polyubiquitin chain.
As an outcome of this requirement, longer polyubiquitin tags would be preferential substrates for degradation by the proteasome.
The addition of a polyubiquitin chain to a protein requires the sequential action of a ubiquitin-activating enzyme (E1), a ubiquitin-conjugating enzyme (E2) and a ubiquitin-protein ligase (E3) [ 1 ] . E3 activities are thought to be essential because they are involved in substrate recognition.
The well-known ubiquitin-dependent pathway involves the covalent attachment of ubiquitin to substrate proteins to form polyubiquitin chain, which then targets the marked substrates to proteasome for degradation [ 17 19 20 ] . The ubiquitin-independent pathway is not well defined, but involves targeting proteins other than ubiquitin.