2B4M Transport Protein date Sep 26, 2005
title Crystal Structure Of The Binding Protein Opuac In Complex Wi Betaine
authors C.Horn, L.Sohn-Boesser, J.Breed, W.Welte, L.Schmitt, E.Bremer
compound source
Molecule: Glycine Betaine-Binding Protein
Chain: A, B
Engineered: Yes
Organism_scientific: Bacillus Subtilis
Organism_taxid: 1423
Gene: Opuac
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_vector: Pbkb76
symmetry Space Group: P 1 21 1
R_factor 0.231 R_Free 0.283
length a length b length c angle alpha angle beta angle gamma
88.562 28.318 102.826 90.00 93.87 90.00
method X-Ray Diffractionresolution 2.80 Å
ligand PBE enzyme
A, B

Primary referenceMolecular determinants for substrate specificity of the ligand-binding protein OpuAC from Bacillus subtilis for the compatible solutes glycine betaine and proline betaine., Horn C, Sohn-Bosser L, Breed J, Welte W, Schmitt L, Bremer E, J Mol Biol. 2006 Mar 24;357(2):592-606. Epub 2006 Jan 13. PMID:16445940
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (86 Kb) [Save to disk]
  • Biological Unit Coordinates (2b4m.pdb1.gz) 41 Kb
  • Biological Unit Coordinates (2b4m.pdb2.gz) 42 Kb
  • LPC: Ligand-Protein Contacts for 2B4M
  • CSU: Contacts of Structural Units for 2B4M
  • Likely Quarternary Molecular Structure file(s) for 2B4M
  • Structure Factors (93 Kb)
  • Retrieve 2B4M in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2B4M from S2C, [Save to disk]
  • Re-refined 2b4m structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2B4M 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 2B4M
  • 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 2B4M, from MSDmotif at EBI
  • Fold representative 2b4m from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2b4m] [2b4m_B] [2b4m_A]
  • SWISS-PROT database: [P46922]
  • Belongs to the atp-binding cassette (abc) superfamily according to TCDB.
  • Domain organization of [OPUAC_BACSU] by SWISSPFAM
  • Other resources with information on 2B4M
  • Community annotation for 2B4M 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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