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Cyclic dinucleotides-second-messenger signaling molecules produced by diverse bacterial species were detected in the cytosol of mammalian cells during intracellular pathogen infection; this leads to activation of TBK1-IRF3 and the downstream production of type I interferon.
The secondary messenger may then activate a "secondary effector" whose effects depend on the particular secondary messenger system. [citation needed] Calcium ions are one type of second messengers and are responsible for many important physiological functions including muscle contraction, fertilization, and
Cyclic di-GMP (also called cyclic diguanylate and c-di-GMP) is a second messenger used in signal transduction in a wide variety of bacteria. [1] Cyclic di-GMP is not known to be used by archaea, and has only been observed in eukaryotes in Dictyostelium. [2]
Group I introns function as part of selfish elements, where they reduce the likelihood that the element will negatively impact the fitness of the host by interrupting a protein-coding gene. However, the group I intron associated with a cyclic di-GMP-II riboswitch is not selfish since it seems to perform a useful function for the cell.
cAMP represented in three ways Adenosine triphosphate. Cyclic adenosine monophosphate (cAMP, cyclic AMP, or 3',5'-cyclic adenosine monophosphate) is a second messenger, or cellular signal occurring within cells, that is important in many biological processes. cAMP is a derivative of adenosine triphosphate (ATP) and used for intracellular signal transduction in many different organisms ...
Inositol trisphosphate or inositol 1,4,5-trisphosphate abbreviated InsP 3 or Ins3P or IP 3 is an inositol phosphate signaling molecule. It is made by hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP 2), a phospholipid that is located in the plasma membrane, by phospholipase C (PLC).
The signal transduction component labeled as "MAPK" in the pathway was originally called "ERK," so the pathway is called the MAPK/ERK pathway. The MAPK protein is an enzyme, a protein kinase that can attach phosphate to target proteins such as the transcription factor MYC and, thus, alter gene transcription and, ultimately, cell cycle progression.