Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-2-8
pubmed:abstractText
N-terminal signal sequences mediate targeting of nascent chains to the endoplasmic reticulum and facilitate opening of the protein translocation channel to the passage of substrate. We have assessed each of these steps for a diverse set of mammalian signals. While minimal differences were seen in their targeting function, signal sequences displayed a remarkable degree of variation in initiating nascent chain access to the lumenal environment. Such substrate-specific properties of signals were evolutionarily conserved, functionally matched to their respective mature domains, and important for the proper biogenesis of some proteins. Thus, the sequence variations of signals do not simply represent functional degeneracy, but instead encode critical differences in translocon gating that are coordinated with their respective passengers to facilitate efficient translocation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1534-5807
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
207-17
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Signal sequences control gating of the protein translocation channel in a substrate-specific manner.
pubmed:affiliation
Laboratory of Cellular Oncology, National Cancer Institute, Bethesda, MD 20892, USA.
pubmed:publicationType
Journal Article