Medical Definition of Gramicidin A
1.
A linear peptide of alternate D and L amino acids that acts as a cation ionophore in lipid bilayer membranes. It is proposed that two molecules form a membrane spanning helix containing a pore lined with polar residues.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(11 Mar 2008)
Lexicographical Neighbors of Gramicidin A
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