3ua8
From Proteopedia
Crystal Structure Analysis of a 6-Amino Quinazolinedione Sulfonamide bound to human GluR2
Structural highlights
FunctionGRIA2_HUMAN Receptor for glutamate that functions as ligand-gated ion channel in the central nervous system and plays an important role in excitatory synaptic transmission. L-glutamate acts as an excitatory neurotransmitter at many synapses in the central nervous system. Binding of the excitatory neurotransmitter L-glutamate induces a conformation change, leading to the opening of the cation channel, and thereby converts the chemical signal to an electrical impulse. The receptor then desensitizes rapidly and enters a transient inactive state, characterized by the presence of bound agonist. In the presence of CACNG4 or CACNG7 or CACNG8, shows resensitization which is characterized by a delayed accumulation of current flux upon continued application of glutamate.[1] Publication Abstract from PubMedA new set of quinazolinedione sulfonamide derivatives as competitive AMPA receptor antagonist with improved properties compared to 1 is disclosed. By modulating physico-chemical properties, compound 29 was identified with a low ED(50) of 5.5mg/kg in an animal model of anticonvulsant activity after oral dosage. 6-Amino quinazolinedione sulfonamides as orally active competitive AMPA receptor antagonists.,Orain D, Ofner S, Koller M, Carcache DA, Froestl W, Allgeier H, Rasetti V, Nozulak J, Mattes H, Soldermann N, Floersheim P, Desrayaud S, Kallen J, Lingenhoehl K, Urwyler S Bioorg Med Chem Lett. 2011 Dec 8. PMID:22197388[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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