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“Mutation of serine residue 294 within the TM2 to histidine or tyrosine increased the potency of GABA and decreased positive modulation by isoflurane.”
“Results:Clinically relevant concentrations of thiopental, propofol, etomidate, isoflurane , sevoflurane, and desflurane induced a concentration-related increase in tyrosine phosphorylation.”
“Conclusion:The … study, that isoflurane dose-dependently inhibits … contraction and tyrosine phosphorylation of a set of proteins including PLCγ-1 and p42MAPK in rat aortic smooth muscle, suggest that isoflurane …–modulated contraction of vascular smooth muscle, especially that mediated by the tyrosine-phosphorylated PLCγ-1 and MAPK signaling pathways.”
“When tyrosine 403 was replaced by histidine (Y403H), volatile anesthetics ( isoflurane or halothane) at clinically relevant concentrations significantly decreased the transporter activity.”