Linked Life Data

15564657

Source:http://linkedlifedata.com/resource/pubmed/id/15564657

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2004-11-26
pubmed:abstractText
Chloroplast transcription in higher plants is performed by two types of RNA polymerases, plastid-encoded RNA polymerase (PEP) and nuclear-encoded RNA polymerase (NEP). PEP is a eubacteria-type multisubunit enzyme whose catalytic core subunits are encoded by the chloroplast genome, whereas NEP is the nuclear encoded T7 phage-type single subunit enzyme. PEP is critical for the biogenesis and maintenance of chloroplasts, and is finely tuned by the nuclear encoded sigma subunits. Of the six Arabidopsis sigma subunits, SIG2 is involved in the transcription of several chloroplast tRNA genes, including trnE encoding tRNA-Glu. SIG2 possibly couples translation and pigment synthesis in chloroplasts. On the other hand, SIG5 is induced by various stresses and contributes to repair of damaged photosystem II (PSII) through transcription of the psbD and psbC genes. Thus target genes and the physiological role of each sigma subunit are becoming clearer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0916-8451
pubmed:author
pubmed:issnType
Print
pubmed:volume
68
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2215-23
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Roles of chloroplast RNA polymerase sigma factors in chloroplast development and stress response in higher plants.
pubmed:affiliation
Laboratory of Biochemistry, Faculty of Agriculture, Kobe University, Japan.
pubmed:publicationType
Journal Article, Review