1OTU	Membrane Protein	date	Mar 23, 2003
title	Structure Of The Escherichia Coli Clc Chloride Channel E148q And Fab Complex
authors	R.Dutzler, E.B.Campbell, R.Mackinnon
compound		source
Molecule: Voltage-Gated Clc-Type Chloride Channel Eric Chain: A, B Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Eric Or B0155 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21de3 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet28b+
Molecule: Fab Fragment (Heavy Chain) Chain: C, E		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Cell_line: Hybridoma Cell Line
Molecule: Fab Fragment (Light Chain) Chain: D, F		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Cell_line: Hybridoma Cell Line
symmetry	Space Group: C 1 2 1	R_factor 0.294 R_Free 0.325
crystal cell	length a length b length c angle alpha angle beta angle gamma 232.113 96.090 170.284 90.00 131.39 90.00
method	X-Ray Diffraction	resolution	3.30 Å
ligand	CL	enzyme
Gene Ontology	Chain Function Process Component A, B F, D
Primary reference	Gating the selectivity filter in ClC chloride channels., Dutzler R, Campbell EB, MacKinnon R, Science 2003 Apr 4;300(5616):108-12. PMID:12649487

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (268 Kb) [Save to disk] Biological Unit Coordinates (1otu.pdb1.gz) 263 Kb LPC: Ligand-Protein Contacts for 1OTU CSU: Contacts of Structural Units for 1OTU Likely Quarternary Molecular Structure file(s) for 1OTU Structure Factors (359 Kb) Retrieve 1OTU in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1OTU from S2C, [Save to disk] Re-refined 1otu structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1OTU 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 1OTU

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 1OTU, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1otua_, region A [Jmol] [rasmolscript] [script source]     - Domain d1otub_, region B [Jmol] [rasmolscript] [script source]     - Domain d1otuc2, region C:122-222 [Jmol] [rasmolscript] [script source]     - Domain d1otuc1, region C:2-121 [Jmol] [rasmolscript] [script source]     - Domain d1otud1, region D:1-106 [Jmol] [rasmolscript] [script source]     - Domain d1otud2, region D:107-211 [Jmol] [rasmolscript] [script source]     - Domain d1otue2, region E:122-222 [Jmol] [rasmolscript] [script source]     - Domain d1otue1, region E:2-121 [Jmol] [rasmolscript] [script source]     - Domain d1otuf1, region F:1-106 [Jmol] [rasmolscript] [script source]     - Domain d1otuf2, region F:107-211 [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: [1otu_B] [1otu_D] [1otu_E] [1otu_A] [1otu_F] [1otu] [1otu_C] SWISS-PROT database: [P37019] [P01808] Belongs to the chloride carrier/channel (clc) family according to TCDB. Domain organization of [CLCA_ECOLI] [HVM38_MOUSE] by SWISSPFAM Domains found in 1OTU: [IG_like] [IGv ] by SMART

Other resources with information on 1OTU

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

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