Tag: selectivity filters
Secrets of Active Transport Become Visible
TSA workers at airports could never boast of this much quality control in their authentication protocols.
Security Gates in the Cell
A key characteristic of life is active transport: control over what enters and exits the cell. Closer looks reveal exquisite “selectivity filters” with moving parts that make active transport work.
Membrane Channels Show Astonishing Specificity
The “selectivity filters” in membrane channels of living cells are able to discriminate between very similar molecules or atoms using complex mechanisms.