2k59

From Proteopedia

proteopedia linkproteopedia link

Template:STRUCTURE 2k59

Contents 1 NMR structures of the second transmembrane domain of the neuronal acetylcholine receptor beta 2 subunit 2 Disease 3 Function 4 About this Structure 5 See Also 6 Reference

NMR structures of the second transmembrane domain of the neuronal acetylcholine receptor beta 2 subunit

Template:ABSTRACT PUBMED 14596621

Disease

[ACHB2_HUMAN] Defects in CHRNB2 are the cause of nocturnal frontal lobe epilepsy type 3 (ENFL3) [MIM:605375]. ENFL3 is an autosomal dominant epilepsy characterized by nocturnal seizures with hyperkinetic automatisms and poorly organized stereotyped movements.^[1][2]

Function

[ACHB2_HUMAN] After binding acetylcholine, the AChR responds by an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane permeable to sodiun ions.^[3]

About this Structure

2k59 is a 1 chain structure. Full experimental information is available from OCA.

See Also

• Ion channels

Reference

• Yushmanov VE, Xu Y, Tang P. NMR structure and dynamics of the second transmembrane domain of the neuronal acetylcholine receptor beta 2 subunit. Biochemistry. 2003 Nov 11;42(44):13058-65. PMID:14596621 doi:10.1021/bi0350396

1. ↑ De Fusco M, Becchetti A, Patrignani A, Annesi G, Gambardella A, Quattrone A, Ballabio A, Wanke E, Casari G. The nicotinic receptor beta 2 subunit is mutant in nocturnal frontal lobe epilepsy. Nat Genet. 2000 Nov;26(3):275-6. PMID:11062464 doi:10.1038/81566
2. ↑ Phillips HA, Favre I, Kirkpatrick M, Zuberi SM, Goudie D, Heron SE, Scheffer IE, Sutherland GR, Berkovic SF, Bertrand D, Mulley JC. CHRNB2 is the second acetylcholine receptor subunit associated with autosomal dominant nocturnal frontal lobe epilepsy. Am J Hum Genet. 2001 Jan;68(1):225-31. Epub 2000 Dec 5. PMID:11104662 doi:10.1086/316946
3. ↑ Bondarenko V, Mowrey D, Tillman T, Cui T, Liu LT, Xu Y, Tang P. NMR structures of the transmembrane domains of the alpha4beta2 nAChR. Biochim Biophys Acta. 2012 Feb 14;1818(5):1261-1268. PMID:22361591 doi:10.1016/j.bbamem.2012.02.008