2R9R	Membrane Protein, Transport Protein	date	Sep 13, 2007
title	Shaker Family Voltage Dependent Potassium Channel (Kv1.2-Kv2 Chimera Channel) In Association With Beta Subunit
authors	S.B.Long, X.Tao, E.B.Campbell, R.Mackinnon
compound		source
Molecule: Voltage-Gated Potassium Channel Subunit Beta-2 Chain: A, G Synonym: K+, Channel Subunit Beta-2, Kv-Beta-2 Engineered: Yes		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Gene: Kcnab2, Ckbeta2, Kcnb3 Expression_system: Pichia Pastoris Expression_system_taxid: 4922
Molecule: Paddle Chimera Voltage Gated Potassium Channel Kv Chain: B, H Engineered: Yes		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Gene: Kcna2 Expression_system: Pichia Pastoris Expression_system_taxid: 4922
symmetry	Space Group: P 4 21 2	R_factor 0.212 R_Free 0.244
crystal cell	length a length b length c angle alpha angle beta angle gamma 144.049 144.049 284.397 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.40 Å
ligand	K, NAP, PGW	enzyme
Gene Ontology	Chain Function Process Component A, G voltage-gated ion channel ac... voltage-gated potassium chan... H, B
Primary reference	Atomic structure of a voltage-dependent K+ channel in a lipid membrane-like environment., Long SB, Tao X, Campbell EB, MacKinnon R, Nature. 2007 Nov 15;450(7168):376-82. PMID:18004376

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (244 Kb) [Save to disk] Biological Unit Coordinates (2r9r.pdb1.gz) 479 Kb Biological Unit Coordinates (2r9r.pdb2.gz) 450 Kb Biological Unit Coordinates (2r9r.pdb3.gz) 924 Kb Biological Unit Coordinates (2r9r.pdb4.gz) 217 Kb Biological Unit Coordinates (2r9r.pdb5.gz) 267 Kb Biological Unit Coordinates (2r9r.pdb6.gz) 215 Kb Biological Unit Coordinates (2r9r.pdb7.gz) 239 Kb LPC: Ligand-Protein Contacts for 2R9R CSU: Contacts of Structural Units for 2R9R Likely Quarternary Molecular Structure file(s) for 2R9R Structure Factors (1021 Kb) Retrieve 2R9R in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2R9R from S2C, [Save to disk] Re-refined 2r9r structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2R9R in 3D

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Visual 3D analysis of 2R9R

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2R9R, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2r9r_B] [2r9r_G] [2r9r] [2r9r_H] [2r9r_A] SWISS-PROT database: [P62483] [P63142] Domain organization of [KCAB2_RAT] [KCNA2_RAT] by SWISSPFAM Domain found in 2R9R: [BTB ] by SMART

Other resources with information on 2R9R

Community annotation for 2R9R at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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