3lut

A Structural Model for the Full-length Shaker Potassium Channel Kv1.2A Structural Model for the Full-length Shaker Potassium Channel Kv1.2

Structural highlights 3lut is a 2 chain structure with sequence from Rattus norvegicus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: , Related: 2a79, 2r9r Gene: Kcnab2, Ckbeta2, Kcnb3 (Rattus norvegicus), Kcna2 (Rattus norvegicus) Resources: FirstGlance, OCA, RCSB, PDBsum Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Voltage-dependent potassium ion (K+) channels (Kv channels) conduct K+ ions across the cell membrane in response to changes in the membrane voltage, thereby regulating neuronal excitability by modulating the shape and frequency of action potentials. Here we report the crystal structure, at a resolution of 2.9 angstroms, of a mammalian Kv channel, Kv1.2, which is a member of the Shaker K+ channel family. This structure is in complex with an oxido-reductase beta subunit of the kind that can regulate mammalian Kv channels in their native cell environment. The activation gate of the pore is open. Large side portals communicate between the pore and the cytoplasm. Electrostatic properties of the side portals and positions of the T1 domain and beta subunit are consistent with electrophysiological studies of inactivation gating and with the possibility of K+ channel regulation by the beta subunit. Crystal structure of a mammalian voltage-dependent Shaker family K+ channel.,Long SB, Campbell EB, Mackinnon R Science. 2005 Aug 5;309(5736):897-903. Epub 2005 Jul 7. PMID:16002581 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Potassium Channel

spinqualitylabelsall models 3lut, resolution 2.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image