Pore Formation: Difference between revisions
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After binding to the membrane, the pore-forming domain unfolds and releases the hydrophobic helices to initiate insertion. This unfolding is shown to be linked to a low pH. 3 conserved aspartate residues in the domain form a hydrogen-bonding domain which is disrupted by the low pH, as is a critical salt bridge required for stability of the folded protein. This causes local unfolding of a helix. The helices then loosely associate on the surface of the membrane, as the hydrophobic hairpin inserts into the bilayer<ref> PMID: 16563740 </ref>. | After binding to the membrane, the pore-forming domain unfolds and releases the hydrophobic helices to initiate insertion. This unfolding is shown to be linked to a low pH. 3 conserved aspartate residues in the domain form a hydrogen-bonding domain which is disrupted by the low pH, as is a critical salt bridge required for stability of the folded protein. This causes local unfolding of a helix. The helices then loosely associate on the surface of the membrane, as the hydrophobic hairpin inserts into the bilayer<ref> PMID: 16563740 </ref>. | ||
==Pore-forming Colicins== | |||
[[Colicin A]] | |||
[[Colicin E1]] | |||
[[Colicin N]] | |||
[[Colicin S4]] | |||
[[Colicin K]] | |||
[[Colicin U]] | |||
[[Colicin 5]] | |||
[[Colicin 6]] | |||
[[Colicin 7]] | |||
[[Colicin 8]] | |||
[[Colicin 9]] | |||
[[Colicin 10]] | |||
[[Colicin Ia]] | |||
[[Colicin Ib]] | |||
[[Colicin B]] | |||
[[Colicin V]] | |||
[[Colicin Y]] | |||
==References== | ==References== | ||
<references/> | <references/> | ||