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Molecular cloning of cDNA for the catalytic subunit of rat liver type 2A protein phosphatase, and detection of high levels of expression of the gene in normal and cancer cells.

Authors: Kitagawa, Y  Tahira, T  Ikeda, I  Kikuchi, K  Tsuiki, S  Sugimura, T  Nagao, M 
Citation: Kitagawa Y, etal., Biochim Biophys Acta 1988 Nov 10;951(1):123-9.
Pubmed: (View Article at PubMed) PMID:2461222

A cloned cDNA encoding a catalytic subunit of type 2A protein phosphatase from a rat liver cDNA library was obtained by use of a synthetic oligonucleotide corresponding to the tryptic peptide sequence of the purified enzyme. There was only a single amino acid difference between the deduced amino acid sequence of the clone obtained and those of the catalytic subunits, 2A alpha, of the rabbit skeletal muscle, porcine kidney and human liver enzymes, suggesting that this clone was a rat 2A alpha cDNA. On Northern blot analysis using a cDNA fragment as a probe, three mRNA species were detected in rat liver: a major mRNA of 2.0 kb and a minor one of 2.7 kb under high stringency conditions, and also a 1.1 kb mRNA under low stringency conditions. The 2A alpha gene was found to be highly expressed in various tissues of rat, especially the brain. High levels of expression of the gene were also detected in mouse NIH3T3 cells and their transformants, and in human cancer cell lines as well as a human immortalized cell line.

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CRRD Object Information
CRRD ID: 729444
Created: 2003-11-26
Species: All species
Last Modified: 2004-05-25
Status: ACTIVE



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