Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2011-3-22
pubmed:abstractText
The polymerase chain reaction-based Mirror Orientation Selection (MOS) method was used to isolate low temperature-induced genes from cold-treated winter barley (Hordeum vulgare L. cv. Dongbori). MOS screening identified a novel methionine (Met) aminopeptidase (MAP) designated as HvMAP. The deduced HvMAP protein was determined to possess an aminopeptidase domain and a nuclear localization signal. An in vitro enzyme assay using recombinant HvMAP protein demonstrated MAP activity. The expression of this gene was induced by low temperature and abscisic acid treatment, and overexpression of this gene conferred stronger freezing tolerance to Arabidopsis transgenic plants as compared to wild-type plants. Interestingly, low temperature treatment changed the localization of HvMAP from the nucleus to the cytoplasm. These findings suggest that HvMAP is a novel MAP that functions in freezing tolerance by facilitating protein maturation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1873-2259
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
180
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
53-60
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Barley DNA-binding methionine aminopeptidase, which changes the localization from the nucleus to the cytoplasm by low temperature, is involved in freezing tolerance.
pubmed:affiliation
School of Life Sciences and Biotechnology, Korea University, Seoul 136-701, Republic of Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't