2GUF

In meso crystal structure of the cobalamin transporter, BtuB


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.225
  • R-Value Work: 0.189

Literature

Macromolecules
Sequence Display for 2GUF

Classification: TRANSPORT PROTEIN

Total Structure Weight: 70827.64

Macromolecule Entities
Molecule Chains Length Organism Details
Vitamin B12 transporter btuB A 594 Escherichia coli Gene Name(s): btuB bfe cer dcrC b3966 JW3938
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 3 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
MPG
Query on MPG

A [(Z)-octadec-9-enyl] (2R)-2,3-bis(oxidanyl)propanoate
C21 H40 O4
JPJYKWFFJCWMPK-GDCKJWNLSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
MPD
Query on MPD

A (4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
FMT
Query on FMT

A FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.225
  • R-Value Work: 0.189
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 72.61 α = 90.00
b = 80.88 β = 90.00
c = 118.68 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2006-04-29
  • Released Date: 2006-12-05
  • Deposition author(s): Caffrey, M., Cherezov, V., Yamashita, E., Cramer, W.A.

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