1ORQ	Membrane Protein	date	Mar 14, 2003
title	X-Ray Structure Of A Voltage-Dependent Potassium Channel In With An Fab
authors	Y.Jiang, A.Lee, J.Chen, V.Ruta, M.Cadene, B.T.Chait, R.Mackinnon
compound		source
Molecule: 6e1 Fab Light Chain Chain: A		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Other_details: Mouse Hybridoma
Molecule: 6e1 Fab Heavy Chain Chain: B		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Other_details: Mouse Hybridoma
Molecule: Potassium Channel Chain: C Fragment: Kvap Engineered: Yes Mutation: Yes		Organism_scientific: Aeropyrum Pernix Organism_taxid: 56636 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pqe60
symmetry	Space Group: I 4 2 2	R_factor 0.253 R_Free 0.298
crystal cell	length a length b length c angle alpha angle beta angle gamma 189.439 189.439 150.479 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.20 Å
ligand	CD, K	enzyme
Gene Ontology	Chain Function Process Component A C
Primary reference	X-ray structure of a voltage-dependent K+ channel., Jiang Y, Lee A, Chen J, Ruta V, Cadene M, Chait BT, MacKinnon R, Nature 2003 May 1;423(6935):33-41. PMID:12721618

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (109 Kb) [Save to disk] Biological Unit Coordinates (1orq.pdb1.gz) 399 Kb Biological Unit Coordinates (1orq.pdb2.gz) 795 Kb LPC: Ligand-Protein Contacts for 1ORQ CSU: Contacts of Structural Units for 1ORQ Likely Quarternary Molecular Structure file(s) for 1ORQ Structure Factors (194 Kb) Retrieve 1ORQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1ORQ from S2C, [Save to disk] Re-refined 1orq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1ORQ in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 1ORQ

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 1ORQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1orqa1, region A:1-108 [Jmol] [rasmolscript] [script source]     - Domain d1orqa2, region A:109-215 [Jmol] [rasmolscript] [script source]     - Domain d1orqb1, region B:1-118 [Jmol] [rasmolscript] [script source]     - Domain d1orqb2, region B:119-219 [Jmol] [rasmolscript] [script source]     - Domain d1orqc_, region C [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1orq_C] [1orq] [1orq_A] [1orq_B] SWISS-PROT database: [P01865] [P01837] [Q9YDF8] Belongs to the voltage-gated ion channel (vic) superfamily according to TCDB. Domain organization of [GCAM_MOUSE] [IGKC_MOUSE] [KVAP_AERPE] by SWISSPFAM Domains found in 1ORQ: [IG_like] [IGv ] by SMART

Other resources with information on 1ORQ

Community annotation for 1ORQ at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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