Post 9wtERZrqa0MhmNlMSe by Jopo89@mas.to
 (DIR) More posts by Jopo89@mas.to
 (DIR) Post #9wtERZrqa0MhmNlMSe by Jopo89@mas.to
       2020-07-08T22:25:17Z
       
       0 likes, 1 repeats
       
       On the evolution of sodium potassium homeostasis. Why is potassium so high intracellularly when it is not abundant in sea water where life evolved? As usual geothermal vents seem to be the answer. Where geothermal material escapes sea vents through mud holes it has a liquid NaCl phase and a vapour right in NH3, hydrogen sulf, CO2 and K+ > Na. Sodium is then actively extruded out of cells. K+ is an important core for things like the ribosome which transcribes RNA
       
 (DIR) Post #9wtEg2EVuisro9G7Bg by Jopo89@mas.to
       2020-07-08T22:27:55Z
       
       0 likes, 1 repeats
       
       And moreover for important kinases and trafficking enzymes. The other gases are interesting because they along with carbon monoxide and nitric oxide represent gaseous signalling molecules common to all eukaryotic cells. Gas signalling is older than the ancestor we share with a chicken but beyond nitric oxide we don’t think of it much. It’s extremely Paracrine and acts locally. #science #evolution #biology #medicine