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MAPK pathways in plants are known to regulate cell growth, cell development, cell death, and cell responses to environmental stimuli. Only a few of the MAPK mechanism components are known and have been studied. The components such as Arabidopsis MAPKKKs YODA, ANP2/ANP3, and MP3K6/MP3K7 functions in the development of the cell.
A more complex, specific example of crosstalk between two major signaling pathways can be observed with the interaction of the cAMP and MAPK signaling pathways in the activation of lymphocytes. In this case, components of the cAMP pathway directly and indirectly affect MAPK signaling pathway meant to activate genes involving immunity and ...
The MAP kinase-kinase, which activates ERK, was named "MAPK/ERK kinase" . [5] Receptor-linked tyrosine kinases, Ras, Raf, MEK, and MAPK could be fitted into a signaling cascade linking an extracellular signal to MAPK activation. [6] See: MAPK/ERK pathway. Transgenic gene knockout mice lacking MAPK1 have major defects in early development. [7]
MAPK: Assembly and localization of the RAS-ERK pathway: One of the best studied signaling pathways in biology is the RAS-ERK pathway in which the RAS G-protein activates the MAPKKK RAF, which activates the MAPKK MEK1 (MAPK/ERK kinase 1), which then activates the MAPK ERK. Several scaffold proteins have been identified to be involved in this ...
WAKs protein composed of five types of highly similar genes located tightly in a 30 kb clusters of Arabidopsis genome. [13] [14] Most of the WAKs are expressed throughout the plant whether WAK1, 2, 3 and 5 are expressed in green organs, WAK1 and 2 weakly expressed in flowers and siliques and WAK2 is also expressed in roots, however, WAK4 is only expressed in siliques. [15]
The Arabidopsis Information Resource (TAIR) is a community resource and online model organism database of genetic and molecular biology data for the model plant Arabidopsis thaliana, commonly known as mouse-ear cress. [1]
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The MAPK/ERK pathway (also known as the Ras-Raf-MEK-ERK pathway) is a chain of proteins in the cell that communicates a signal from a receptor on the surface of the cell to the DNA in the nucleus of the cell.