2NLJ	Membrane Protein	date	Oct 20, 2006
title	Potassium Channel Kcsa(M96v)-Fab Complex In Kcl
authors	S.W.Lockless, M.Zhou, R.Mackinnon
compound		source
Molecule: Antibody Fab Fragment Light Chain Chain: A		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090
Molecule: Antibody Fab Fragment Heavy Chain Chain: B		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090
Molecule: Voltage-Gated Potassium Channel Chain: C Fragment: Residues 1-124 Engineered: Yes Mutation: Yes		Organism_scientific: Streptomyces Lividans Organism_taxid: 1916 Gene: Kcsa, Skc1 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl-21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pqe-60
symmetry	Space Group: I 4	R_factor 0.235 R_Free 0.255
crystal cell	length a length b length c angle alpha angle beta angle gamma 155.383 155.383 75.718 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.52 Å
ligand	DGA, K	enzyme
Gene Ontology	Chain Function Process Component C
Primary reference	Structural and thermodynamic properties of selective ion binding in a K+ channel., Lockless SW, Zhou M, MacKinnon R, PLoS Biol. 2007 May;5(5):e121. PMID:17472437

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (89 Kb) [Save to disk] Biological Unit Coordinates (2nlj.pdb1.gz) 320 Kb LPC: Ligand-Protein Contacts for 2NLJ CSU: Contacts of Structural Units for 2NLJ Likely Quarternary Molecular Structure file(s) for 2NLJ Structure Factors (253 Kb) Retrieve 2NLJ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2NLJ from S2C, [Save to disk] Re-refined 2nlj structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2NLJ 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 2NLJ

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 2NLJ, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2nlj_A] [2nlj_C] [2nlj] [2nlj_B] SWISS-PROT database: [P0A334] Belongs to the voltage-gated ion channel (vic) superfamily according to TCDB. Domain organization of [KCSA_STRLI] by SWISSPFAM Domains found in 2NLJ: [IG_like] [IGv ] by SMART

Other resources with information on 2NLJ

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

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