Linked Life Data

11726703

Source:http://linkedlifedata.com/resource/pubmed/id/11726703

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2001-11-29
pubmed:databankReference
pubmed:abstractText
Phytochrome A plays a major role in early seedling development by triggering the transition from etiolated growth to greening. Seedlings germinated under constant far-red (FR) light show a partially de-etiolated phenotype that is not seen in phyA mutants. This phytochrome A specific response was used to screen a population of T-DNA mutagenized Arabidopsis seedlings. One mutant line, pat3 (phytochrome A signal transduction3), which showed no inhibition of hypocotyl elongation under FR light conditions and no FR-induced killing response, contained a T-DNA insertion in a 609-bp ORF. The recessive mutation co-segregated with the T-DNA resistance marker and could be allelic to fhy1. A 2,248-bp genomic fragment of the PAT3 locus can complement the pat3 mutant phenotype. PAT3 transcript peaked 3 d after germination and was downregulated by light. PAT3 has no significant homology to any known protein and shows no preferential cellular localization. The protein can activate transcription in yeast when fused to the GAL4 DNA-binding domain. Our results show that PAT3 is a positive regulator of phytochrome A signal transduction.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0032-0781
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1193-200
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
The phytochrome A specific signaling component PAT3 is a positive regulator of Arabidopsis photomorphogenesis.
pubmed:affiliation
Laboratory of Plant Molecular Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't