Searching for interesting channels: pairing selection and molecular evolution methods to study ion channel structure and function

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Abstract
The pairing of selection and screening methods with randomly mutated libraries can be an exceptionally powerful means for probing the functions of biological molecules and for developing novel regents from random libraries of peptides and oligonucleotides. The use of such approaches is beginning to permeate the ion channel field where they are being deployed to uncover fundamental aspects about ion channel structure and gating, small molecule–channel interactions, and the development of novel agents to control channel activity.