Article
C5a receptor activation. Genetic identification of critical residues in four transmembrane helices.
The Journal of biological chemistry - 28 May 1999
Baranski T J, Herzmark P, Lichtarge O, Gerber B O, Trueheart J, Meng E C, Iiri T, Sheikh S P, Bourne H R
Abstract excerpt
Hormones and sensory stimuli activate serpentine receptors, transmembrane switches that relay signals to heterotrimeric guanine nucleotide-binding proteins (G proteins). To understand the switch mechanism, we subjected 93 amino acids in transmembrane helices III, V, VI, and VII of the human chemoattractant C5a receptor to random saturation mutagenesis. A yeast selection identified 121 functioning mutant...
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