4WFE	Metal Transport	date	Sep 15, 2014
title	Human Traak K+ Channel In A K+ Bound Conductive Conformation
authors	S.G.Brohawn, R.Mackinnon
compound		source
Molecule: Potassium Channel Subfamily K Member 4 Chain: A, B Synonym: Twik-Related Arachidonic Acid-Stimulated Potassium Protein,Traak,Two Pore Potassium Channel Kt4.1,Two Pore K(+ Kt4.1; Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Kcnk4, Traak Expression_system: Komagataella Pastoris Expression_system_taxid: 4922 Expression_system_plasmid: Ppicz-B
Molecule: Anti-Traak Antibody 13e9 Fab Fragment Light Chain Chain: D, F Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: Mouse Organism_taxid: 10090 Expression_system: Mus Musculus Expression_system_taxid: 10090
Molecule: Anti-Traak Antibody 13e9 Fab Fragment Heavy Chain Chain: E, G Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: Mouse Organism_taxid: 10090 Expression_system: Mus Musculus Expression_system_taxid: 10090
symmetry	Space Group: P 1 21 1	R_factor 0.199 R_Free 0.234
crystal cell	length a length b length c angle alpha angle beta angle gamma 80.795 138.522 96.843 90.00 95.08 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	CA, K	enzyme
Gene Ontology	Chain Function Process Component A, B
Primary reference	Physical mechanism for gating and mechanosensitivity of the human TRAAK K+ channel., Brohawn SG, Campbell EB, MacKinnon R, Nature. 2014 Dec 4;516(7529):126-30. doi: 10.1038/nature14013. PMID:25471887

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (461 Kb) [Save to disk] Biological Unit Coordinates (4wfe.pdb1.gz) 450 Kb LPC: Ligand-Protein Contacts for 4WFE CSU: Contacts of Structural Units for 4WFE Structure Factors (2110 Kb) Retrieve 4WFE in mmCIF format [Save to disk] Re-refined 4wfe structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 4WFE 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 4WFE

Cartoon representation from PDB Cartoon 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 Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 4WFE, from MSDmotif at EBI Fold representative 4wfe from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [4wfe_B] [4wfe_G] [4wfe_A] [4wfe_E] [4wfe] [4wfe_D] [4wfe_F] SWISS-PROT database: Domain organization of by SWISSPFAM Domains found in 4WFE: [IG_like] [IGv ] by SMART

Other resources with information on 4WFE

Community annotation for 4WFE at PDBWiki (http://pdbwiki.org)

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2014 Bioinformatics Unit Weizmann Institute of Science

---