Archive for October, 2009

Conductivity of membrane proteins

Monday, October 19th, 2009

A collection of conductivity for membrane proteins

Channel:

1, Aquaporin: ~3*109 water molecules per second (url, url)
2, Potassium chanel: ~108 potassium ions per second (url)

Pomp
1, ATPase ion pump: ~102 transaction per second (In the Na+,K+-ATPase pump, this alternating gating effects outward transport of three Na+ ions and inward transport of two K+ ions, for each ATP hydrolysed, up to a hundred times per second, generating a measurable current if assayed in millions of pumps. url)

(will be updated if have more)