Self-Directed Assembly and Clustering of the Cytoplasmic Domains of Inwardly Rectifying Kir2.1 Potassium Channels on Association with Psd-95Fomina, S., Howard, T.D., Sleator, O.K., Golovanova, M., O'Ryan, L., Leyland, M.L., Grossmann, J.G., Collins, R.F., Prince, S.M.
(2011) Biochim.Biophys.Acta 1808: 2374
- PubMed: 21756874
- DOI: 10.1016/j.bbamem.2011.06.021
- Primary Citation of Related Structures:  2XKY
- PubMed Abstract:
- Supramodular Structure and Synergistic Target Binding of the N-Terminal Tandem Pdz Domains of Psd-95.
Long, J.,Tochio, H.,Wang, P.,Fan, J.,Sala, C.,Niethammer, M.,Sheng, M.,Zhang, M.
(2003) J.Mol.Biol. 327: 203
- Structure of the Third Pdz Domain of Psd-95 Protein Complexed with Kketwv Peptide Ligand
Saro, D.,Wawrzak, Z.,Martin, P.,Vickrey, J.,Paredes, A.,Kovari, L.,Spaller, M.
() TO BE PUBLISHED --: --
- Structure of the SH3-Guanylate Kinase Module from Psd-95 Suggests a Mechanism for Regulated Assembly of Maguk Scaffolding Proteins.
Mcgee, A.W.,Dakoji, S.R.,Olsen, O.,Bredt, D.S.,Lim, W.A.,Prehoda, K.E.
(2001) Mol.Cell 8: 1291
- Solution Structure and Backbone Dynamics of the Second Pdz Domain of Postsynaptic Density-95.
Tochio, H.,Hung, F.,Li, M.,Bredt, D.S.,Zhang, M.
(2000) J.Mol.Biol. 295: 225
The interaction of the extra-membranous domain of tetrameric inwardly rectifying Kir2.1 ion channels (Kir2.1NC(4)) with the membrane associated guanylate kinase protein PSD-95 has been studied using Transmission Electron Microscopy in negative stain. ...
The interaction of the extra-membranous domain of tetrameric inwardly rectifying Kir2.1 ion channels (Kir2.1NC(4)) with the membrane associated guanylate kinase protein PSD-95 has been studied using Transmission Electron Microscopy in negative stain. Three types of complexes were observed in electron micrographs corresponding to a 1:1 complex, a large self-enclosed tetrad complex and extended chains of linked channel domains. Using models derived from small angle X-ray scattering experiments in which high resolution structures from X-ray crystallographic and Nuclear Magnetic Resonance studies are positioned, the envelopes from single particle analysis can be resolved as a Kir2.1NC(4):PSD-95 complex and a tetrad of this unit (Kir2.1NC(4):PSD-95)(4). The tetrad complex shows the close association of the Kir2.1 cytoplasmic domains and the influence of PSD-95 mediated self-assembly on the clustering of these channels.
University of Manchester, Manchester Interdisciplinary Biocentre, Manchester M1 7DN, UK.