2GSK

Structure of the BtuB:TonB Complex

Structural Biology Knowledgebase: 2GSK SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.251
  • R-Value Work: 0.196

Literature

Macromolecules
Sequence Display for 2GSK

Classification: SIGNALING PROTEIN / MEMBRANE PROTEIN

Total Structure Weight: 78071.51

Macromolecule Entities
Molecule Chains Length Organism Details
Vitamin B12 transporter btuB A 590 Escherichia coli Gene Name(s): btuB bfe cer dcrC b3966 JW3938
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG
protein TONB B 81 Escherichia coli Fragment: C-TERMINAL DOMAIN
Gene Name(s): tonB exbA b1252 JW5195
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Membrane Protein

Source: mpstruc | Group: BETA-BARREL

Subgroup Name: Beta-Barrel Membrane Proteins: Monomeric/Dimeric

Protein Name: apo BtuB cobalamin transporter


Small Molecules
Ligands 5 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
CNC
Query on CNC

A CO-CYANOCOBALAMIN
C63 H88 Co N14 O14 P
OEEKSCBDGPRZJZ-BYLSPCLQSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
LDA
Query on LDA

A LAURYL DIMETHYLAMINE-N-OXIDE
C14 H31 N O
SYELZBGXAIXKHU-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
OCT
Query on OCT

A N-OCTANE
C8 H18
TVMXDCGIABBOFY-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
HEX
Query on HEX

A HEXANE
C6 H14
VLKZOEOYAKHREP-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CA
Query on CA

A CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.251
  • R-Value Work: 0.196
  • Space Group: P 21 21 21
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 74.34 α = 90.00
b = 82.44 β = 90.00
c = 122.63 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2006-04-26
  • Released Date: 2006-06-13
  • Deposition author(s): Shultis, D.D., Purdy, M.P., Banchs, C.N., Wiener, M.C.

Revision History

  • 2011-07-13
    Type: Flag residual B-value | Details: Tagged residual B temperature factor
  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4