Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers.

Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers. Research Abstract Details 

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Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers. Abstract Text:

K Kitamura,Y Mizuno,A Sasaki,A Yasui,S Tsuiki,K Kikuchi,

A cDNA clone containing the full coding sequence of a type 1 protein phosphatase catalytic subunit 1 alpha has been isolated from a rat kidney lambda gt 10 library. The protein sequence deduced from the cDNA contains 330 amino acid residues with a molecular mass of 38 kDa. The cDNA clone from rat kidney was 89% identical at the nucleotide level in the coding region to type 1 protein phosphatase 1 alpha from rabbit skeletal muscle. However, the two protein sequences were completely identical. The type 1 alpha protein phosphatase from rat kidney shows 49% homology of amino acid sequence to the rat type 2A alpha protein phosphatase. Thus, the protein sequence of type 1 alpha protein phosphatase was completely conserved between rat and rabbit. The mRNA levels of type 1 protein phosphatase were determined in rat liver, AH13, a strain of rat hepatoma, and regenerating rat liver by Northern blot analysis using the cDNA fragment as a probe, under which conditions a single mRNA of 1.5 kb was detected. The mRNA levels of AH13 were remarkably increased when compared to those of normal ivers, whereas the mRNA levels of regenerating livers were slightly but significantly increased. These results demonstrate a marked increase in gene expression of type 1 protein phosphatase in hepatoma cells, suggesting an important role of the type 1 protein phosphatase in hepatocarcinogenesis.

Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers. Publishing Authors By Initials

K Kitamura,Y Mizuno,A Sasaki,A Yasui,S Tsuiki,K Kikuchi,

For similar cells: cells, cultured: tumor cells, cultured research abstracts see: cells: cells, cultured: tumor cells, cultured research

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Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of biochemistry

VOLUME: 109

Page Numbers: 307-10

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Feb

YEAR: 1991

Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers. Keywords Mesh Terms:

KEYWORDS: Tumor Cells, Cultured

MESH TERMS: metabolism

Chemical & Substance for Abstract: Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers. Information

Substance Name: Protein Phosphatase 1

Registry Number: EC 3.1.3.16

Grant and Affiliation Information for Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers.

AFFILIATION: Institute of Immunological Science, Hokkaido University.

Country: JAPAN

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MEDLINETA: J Biochem

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ACCESSION NUMBER: S69830

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Molecular cloning and sequence analysis of cDNA for the catalytic subunit 1 alpha of rat kidney type 1 protein phosphatase, and detection of the gene expression at high levels in hepatoma cells and regenerating livers as compared to rat livers Related Publications

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