Convergence of MAP kinase pathways on the ternary complex factor Sap-1a
نویسندگان
چکیده
منابع مشابه
Convergence of MAP kinase pathways on the ternary complex factor Sap-1a.
The serum response element (SRE), which is pivotal for transcriptional up-regulation of the c-fos protooncogene, is constitutively occupied by a protein complex comprising the serum response factor and a ternary complex factor (TCF). Phosphorylation of the TCFs Elk-1 and Sap-1a by the ERK and JNK subclasses of MAP kinases triggers c-fos transcription. We demonstrate here that Elk-1 is barely ac...
متن کاملRas/MAP kinase-dependent and -independent signaling pathways target distinct ternary complex factors.
Transcriptional activation of the immediate early genes c-fos and egr-1 by extracellular signals appears to be mediated by ternary complex factors (TCFs). In BAC-1 macrophages, growth factor stimulation leads to the retardation of protein-DNA complexes containing distinct TCFs. One TCF is recognized by Elk-1 antisera, whereas the other is immunologically related to SAP-1. The appearance and dec...
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BACKGROUND The ternary complex factors (TCFs; Elk1, Net, and Sap-1) are growth factor-responsive transcription cofactors of serum response factor (SRF) and are activated by MAP kinase (MAPK) phosphorylation to regulate immediate early gene transcription. Although cell adhesion also can regulate immediate early genes and proliferation, the mechanism for this effect has remained unexplored. RES...
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15 صفحه اولMAP kinase pathways.
Mitogen-activated protein kinase (MAPK) pathways regulate diverse processes ranging from proliferation and differentiation to apoptosis. Activated by an enormous array of stimuli, they phosphorylate numerous proteins, including transcription factors, cytoskeletal proteins, kinases and other enzymes, and greatly influence gene expression, metabolism, cell division, cell morphology and cell survi...
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ژورنال
عنوان ژورنال: The EMBO Journal
سال: 1997
ISSN: 1460-2075
DOI: 10.1093/emboj/16.7.1620