1N4D

The Ligand-Free Structure of E coli BtuF, the Periplasmic Binding Protein for Vitamin B12


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.0 Å
  • R-Value Free: 0.298
  • R-Value Work: 0.242

Literature

Macromolecules
Sequence Display for 1N4D

Classification: TRANSPORT PROTEIN

Total Structure Weight: 56281.36

Macromolecule Entities
Molecule Chains Length Organism Details
Vitamin B12 transport protein btuF A, B 252 Escherichia coli Mutation: M47M, M83M
Gene Name(s): btuF yadT b0158 JW0154
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Modified Residues 1 Unique
ID Chains Type Formula 2D Diagram Parent
MSE
Query on MSE
A, B L-PEPTIDE LINKING C5 H11 N O2 Se MET

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.0 Å
  • R-Value Free: 0.298
  • R-Value Work: 0.242
  • Space Group: C 2 2 21

Unit Cell:

Length (Å) Angle (°)
a = 56.25 α = 90.00
b = 84.08 β = 90.00
c = 209.30 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2002-10-30
  • Released Date: 2003-03-11
  • Deposition author(s): Karpowich, N., Smith, P.C., Hunt, J.F.

Revision History

  • Version 1_0: 2003-03-11

    Type: Initial release

  • Version 1_1: 2008-04-28

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Version format compliance