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Generation of a conditional mutant allele for Tab1 in mouse.


ABSTRACT: TAK1 binding protein 1 (TAB1) binds and induces autophosphorylation of TGF-beta activating kinase (TAK1). TAK1, a mitogen-activated kinase kinase kinase, is involved in several distinct signaling pathways including non-Smad pathways for TGF-beta superfamily members and inflammatory responses caused by cytokines. Conventional disruption of the murine Tab1 gene results in late gestational lethality showing intraventricular septum defects and underdeveloped lung alveoli. To gain a better understanding of the roles of TAB1 in different tissues, at different stages of development, and in pathological conditions, we generated Tab1 floxed mice in which the loxP sites flank Exons 9 and 10 to remove the C-terminal region of TAB1 protein necessary for activation of TAK1. We demonstrate that Cre-mediated recombination using Sox2-Cre, a Cre line expressed in the epiblast during early embryogenesis, results in deletion of the gene and protein. These homozygous Cre-recombined null embryos display an identical phenotype to conventional null embryos. This animal model will be useful in revealing distinct roles of TAB1 in different tissues at different stages.

SUBMITTER: Inagaki M 

PROVIDER: S-EPMC2637350 | biostudies-literature | 2008 Aug

REPOSITORIES: biostudies-literature

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Generation of a conditional mutant allele for Tab1 in mouse.

Inagaki Maiko M   Komatsu Yoshihiro Y   Scott Greg G   Yamada Gen G   Ray Manas M   Ninomiya-Tsuji Jun J   Mishina Yuji Y  

Genesis (New York, N.Y. : 2000) 20080801 8


TAK1 binding protein 1 (TAB1) binds and induces autophosphorylation of TGF-beta activating kinase (TAK1). TAK1, a mitogen-activated kinase kinase kinase, is involved in several distinct signaling pathways including non-Smad pathways for TGF-beta superfamily members and inflammatory responses caused by cytokines. Conventional disruption of the murine Tab1 gene results in late gestational lethality showing intraventricular septum defects and underdeveloped lung alveoli. To gain a better understand  ...[more]

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