1S5H	Membrane Protein	date	Jan 20, 2004
title	Potassium Channel Kcsa-Fab Complex T75c Mutant In K+
authors	R.Mackinnon, M.Zhou
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 Engineered: Yes Mutation: Yes		Organism_scientific: Streptomyces Coelicolor, Streptomyces Organism_common: , Organism_taxid: 1902,1916 Strain: , Gene: Kcsa, Skc1, Sco7660, Sc10f4.33 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Xl1 Blue Expression_system_vector_type: Plasmid Expression_system_plasmid: Pqe60
symmetry	Space Group: I 4	R_factor 0.222 R_Free 0.240
crystal cell	length a length b length c angle alpha angle beta angle gamma 154.705 154.705 75.927 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand	DGA, F09, K	enzyme
related structures	by homologous chain: 1K4C, 1K4D, 1UWX, 2CGR
Gene Ontology	Chain Function Process Component C
Primary reference	A mutant KcsA K(+) channel with altered conduction properties and selectivity filter ion distribution., Zhou M, MacKinnon R, J Mol Biol 2004 May 7;338(4):839-46. PMID:15099749

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (91 Kb) [Save to disk] Biological Unit Coordinates (1s5h.pdb1.gz) 332 Kb LPC: Ligand-Protein Contacts for 1S5H CSU: Contacts of Structural Units for 1S5H Likely Quarternary Molecular Structure file(s) for 1S5H Structure Factors (387 Kb) Retrieve 1S5H in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1S5H from S2C, [Save to disk] Re-refined 1s5h structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1S5H 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 1S5H

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 1S5H, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1s5ha1, region A:1-107 [Jmol] [rasmolscript] [script source]     - Domain d1s5ha2, region A:108-211 [Jmol] [rasmolscript] [script source]     - Domain d1s5hb1, region B:1-118 [Jmol] [rasmolscript] [script source]     - Domain d1s5hb2, region B:119-219 [Jmol] [rasmolscript] [script source]     - Domain d1s5hc_, 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: [1s5h_C] [1s5h_A] [1s5h] [1s5h_B] SWISS-PROT database: [P01837] [P0A333] Domain organization of [IGKC_MOUSE] [KCSA_STRCO] by SWISSPFAM Domains found in 1S5H: [IG_like] [IGv ] by SMART

Other resources with information on 1S5H

Community annotation for 1S5H at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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