The old water channels are aquaporin proteins through which single files of water molecules cross cell membranes
We overview the critical steps leading to the demonstration that each ~28 kD protein monomer of the water channel (or pore)¹ pierce the lipid bilayer part of the cell membrane allowing the passage of ~ 10¹³ water molecules per second. The biophysical approach gives a functional and physical image of...
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | Articulo Revision |
| Lenguaje: | Inglés |
| Publicado: |
2006
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/146979 https://pmr.safisiol.org.ar/wp-content/uploads/2022/09/vol1_n10_may.pdf |
| Aporte de: |
| Sumario: | We overview the critical steps leading to the demonstration that each ~28 kD protein monomer of the water channel (or pore)¹ pierce the lipid bilayer part of the cell membrane allowing the passage of ~ 10¹³ water molecules per second. The biophysical approach gives a functional and physical image of the water pore close to what has recently been obtained from the amino acid sequence, crystallography and other advances from the cloning era of trans-membrane water transport. Paracellular “wide” water channels of some leaky epithelia are not covered here [cf. Whittembury and Reuss, 1992; Whittembury and Hill, 2000]. |
|---|