Abstract:
:Mesoderm formation in the frog, Xenopus laevis, is dependent on the activity of one or more members of the Src family kinases; the molecular interactions underlying this requirement are not well understood. The C-terminal Src Kinase (Csk) is a potent inhibitor of Src activity, and is required for normal mammalian development; here we report the characterization of Xenopus Csk (Xcsk). Xcsk is widely expressed during early development, physically interacts with the Src kinase Laloo, and inhibits the generation of mesoderm by the Src kinases. Xcsk activity requires a functional kinase domain; furthermore, a kinase-inactive Xcsk mutant potently synergizes with Laloo during early vertebrate development, suggesting a fundamental role for the Src kinase-Csk regulatory circuit during mesoderm induction, in vivo.
journal_name
Oncogenejournal_title
Oncogeneauthors
Song Y,Cohler AN,Weinstein DCdoi
10.1038/sj.onc.1204672subject
Has Abstractpub_date
2001-08-23 00:00:00pages
5210-4issue
37eissn
0950-9232issn
1476-5594journal_volume
20pub_type
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