cMyc is a transcription factor that is believed to regulate expression of 15% of all genes
A short protein description with the molecular wheight, isoforms, etc...
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CHEMICAL STRUCTURE AND IMAGES
When relevant for the function
- Primary structure
- Secondary structure
- Tertiary structure
- Quaternary structure
Protein Aminoacids Percentage
The Protein Aminoacids Percentage gives useful information on the local environment and the metabolic status of the cell (starvation, lack of essential AA, hypoxia)
Model (Width 600 px)
SYNTHESIS AND TURNOVER
- Cell signaling and Ligand transport
- Structural proteins
Mol Cell Biol. 2009 Dec;29(23):6182-91. Epub 2009 Oct 5.
S-adenosyl homocysteine hydrolase is required for Myc-induced mRNA cap methylation, protein synthesis, and cell proliferation.
Fernandez-Sanchez ME, Gonatopoulos-Pournatzis T, Preston G, Lawlor MA, Cowling VH.
Division of Cell Biology and Immunology, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, United Kingdom.
The c-Myc proto-oncogene promotes mRNA cap methylation, which is essential for almost all mRNA translation. The mRNA cap methylation reaction produces an inhibitory byproduct, S-adenosyl homocysteine. Here we report that Myc promotes upregulation of S-adenosyl homocysteine hydrolase (SAHH), an enzyme which hydrolyzes S-adenosyl homocysteine, thus neutralizing its inhibitory effects, and this is required for c-Myc-induced mRNA cap methylation. c-Myc-induced mRNA cap methylation was repressed by inhibiting the expression or activity of SAHH, whereas the same treatments did not have a significant effect on c-Myc-induced transcription or other c-Myc-dependent methylation events. The selective inhibition of mRNA cap methylation afforded by SAHH repression revealed that c-Myc-induced cap methylation could be correlated with the core c-Myc functions of protein synthesis, cell proliferation, and cell transformation.
Transcription-independent functions of MYC: regulation of translation and DNA replication. 2008