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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2006-6-26
pubmed:abstractText
We cloned and sequenced full-length cDNA of a theta-class-like glutathione S-transferase (GST-T) from liver tissue of the self-fertilizing fish Rivulus marmoratus. The full-length cDNA of rm-GST-T was 907 bp in length containing an open reading frame of 666 bp that encoded a 221-amino acid putative protein. Its derived amino acid sequence was clustered with other vertebrate theta-class GSTs in a phylogenetic tree. The deduced amino acid sequence of theta-like rm-GST (rm-GST-T) was compared with both classes (alpha and theta) of GST and alpha-class rm-GST (rm-GST-A). Tissue-specific expression of two rm-GST mRNAs was investigated using real-time RT-PCR. To further characterize the catalytic properties of this enzyme along with rm-GST-A, we constructed the recombinant theta-like rm-GST plasmid with a 6 x His-Tag at the N-terminal of rm-GST-T cDNA. Recombinant rm-GST-T was highly expressed in transformed Escherichia coli, and its soluble fraction was purified by His-Tag affinity column chromatography. The kinetic properties and effects of pH and temperature on rm-GST-T were further studied, along with enzyme activity and inhibition effects, and compared with recombinant rm-GST-A. These results suggest that recombinant rm-GSTs such as rm-GST-A and rm-GST-T play a conserved functional role in R. marmoratus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
4
pubmed:volume
346
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1053-61
pubmed:dateRevised
2010-12-1
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Molecular cloning and characterization of theta-class glutathione S-transferase (GST-T) from the hermaphroditic fish Rivulus marmoratus and biochemical comparisons with alpha-class glutathione S-transferase (GST-A).
pubmed:affiliation
Department of Molecular and Environmental Bioscience, and the National Research Laboratory of Marine Molecular and Environmental Bioscience, Graduate School, Hanyang University, Seoul 133-791, South Korea.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't