Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Concentration gradient of model proteins within a cell. (A) Calculated concentration gradients of model proteins of different molecular masses (1 kDa, 10 kDa, 100 kDa, and 1 MDa) at the sedimentation equilibrium at 500,000 × g and 30 °C over a distance of 10 μm. (B) Sedimentation of model proteins of different molecular masses over a distance of 1 μm as a function of acceleration.
