3MT5 Membrane Protein, Transport Protein date Apr 30, 2010
title Crystal Structure Of The Human Bk Gating Apparatus
authors P.Yuan, R.Mackinnon
compound source
Molecule: Potassium Large Conductance Calcium-Activated Cha Subfamily M, Alpha Member 1;
Chain: A
Fragment: Cytoplasmic Domain (Unp Residued 356-1071)
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Kcnma1, Rp11-443a13.1-004
Expression_system: Spodoptera Frugiperda
Expression_system_common: Fall Armyworm
Expression_system_taxid: 7108
Expression_system_strain: Sf9
Expression_system_vector_type: Bacmid
Expression_system_plasmid: Pfastbac
symmetry Space Group: P 63 2 2
R_factor 0.246 R_Free 0.278
length a length b length c angle alpha angle beta angle gamma
144.518 144.518 182.195 90.00 90.00 120.00
method X-Ray Diffractionresolution 3.00 Å
ligand CA, SO4 enzyme

Primary referenceStructure of the Human BK Channel Ca2+-Activation Apparatus at 3.0 A Resolution., Yuan P, Leonetti MD, Pico AR, Hsiung Y, Mackinnon R, Science. 2010 May 27. PMID:20508092
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (100 Kb) [Save to disk]
  • Biological Unit Coordinates (3mt5.pdb1.gz) 95 Kb
  • Biological Unit Coordinates (3mt5.pdb2.gz) 555 Kb
  • LPC: Ligand-Protein Contacts for 3MT5
  • CSU: Contacts of Structural Units for 3MT5
  • Structure Factors (867 Kb)
  • Retrieve 3MT5 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3MT5 from S2C, [Save to disk]
  • Re-refined 3mt5 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3MT5 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 3MT5
  • 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 3MT5, from MSDmotif at EBI
  • Fold representative 3mt5 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3mt5] [3mt5_A]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 3MT5
  • Community annotation for 3MT5 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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