Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6442
pubmed:dateCreated
1993-10-8
pubmed:databankReference
pubmed:abstractText
Ubiquitin-conjugating enzymes function in selective proteolysis pathways and catalyse the covalent attachment of ubiquitin to proteolytic substrates. Here we report the identification of an integral membrane ubiquitin-conjugating enzyme. This enzyme, UBC6, localizes to the endoplasmic reticulum (ER), with the catalytic domain facing the cytosol. ubc6 loss-of-function mutants suppress the protein translocation defect caused by a mutation in SEC61, which encodes a key component of a multisubunit protein translocation apparatus of the ER. The expression of the sec61 mutant phenotype requires both the activity of UBC6 and its localization at the ER membrane. This suggests that UBC6 may mediate selective degradation of ER membrane proteins and that the protein translocation defect of sec61 may be caused by proteolysis of components of a structurally distorted mutant translocation apparatus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0028-0836
pubmed:author
pubmed:issnType
Print
pubmed:day
9
pubmed:volume
365
pubmed:geneSymbol
sec61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
176-9
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:8396728-Amino Acid Sequence, pubmed-meshheading:8396728-Base Sequence, pubmed-meshheading:8396728-Biological Transport, pubmed-meshheading:8396728-Cloning, Molecular, pubmed-meshheading:8396728-DNA, Fungal, pubmed-meshheading:8396728-Endoplasmic Reticulum, pubmed-meshheading:8396728-Fungal Proteins, pubmed-meshheading:8396728-Genes, Fungal, pubmed-meshheading:8396728-Intracellular Membranes, pubmed-meshheading:8396728-Ligases, pubmed-meshheading:8396728-Membrane Proteins, pubmed-meshheading:8396728-Membrane Transport Proteins, pubmed-meshheading:8396728-Molecular Sequence Data, pubmed-meshheading:8396728-Saccharomyces cerevisiae, pubmed-meshheading:8396728-Saccharomyces cerevisiae Proteins, pubmed-meshheading:8396728-Suppression, Genetic, pubmed-meshheading:8396728-Ubiquitin-Conjugating Enzymes, pubmed-meshheading:8396728-Ubiquitins
pubmed:year
1993
pubmed:articleTitle
A protein translocation defect linked to ubiquitin conjugation at the endoplasmic reticulum.
pubmed:affiliation
Friedrich-Miescher-Laboratorium der Max-Planck-Gesellschaft, Tübingen, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't