1M33

Crystal Structure of BioH at 1.7 A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.145 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Integrating structure, bioinformatics, and enzymology to discover function: BioH, a new carboxylesterase from Escherichia coli.

Sanishvili, R.Yakunin, A.F.Laskowski, R.A.Skarina, T.Evdokimova, E.Doherty-Kirby, A.Lajoie, G.A.Thornton, J.M.Arrowsmith, C.H.Savchenko, A.Joachimiak, A.Edwards, A.M.

(2003) J.Biol.Chem. 278: 26039-26045

  • DOI: 10.1074/jbc.M303867200

  • PubMed Abstract: 
  • Structural proteomics projects are generating three-dimensional structures of novel, uncharacterized proteins at an increasing rate. However, structure alone is often insufficient to deduce the specific biochemical function of a protein. Here we dete ...

    Structural proteomics projects are generating three-dimensional structures of novel, uncharacterized proteins at an increasing rate. However, structure alone is often insufficient to deduce the specific biochemical function of a protein. Here we determined the function for a protein using a strategy that integrates structural and bioinformatics data with parallel experimental screening for enzymatic activity. BioH is involved in biotin biosynthesis in Escherichia coli and had no previously known biochemical function. The crystal structure of BioH was determined at 1.7 A resolution. An automated procedure was used to compare the structure of BioH with structural templates from a variety of different enzyme active sites. This screen identified a catalytic triad (Ser82, His235, and Asp207) with a configuration similar to that of the catalytic triad of hydrolases. Analysis of BioH with a panel of hydrolase assays revealed a carboxylesterase activity with a preference for short acyl chain substrates. The combined use of structural bioinformatics with experimental screens for detecting enzyme activity could greatly enhance the rate at which function is determined from structure.


    Organizational Affiliation

    Biosciences Division, Argonne National Laboratory, Argonne, Illinois, 60439, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BioH protein
A
258Escherichia coli (strain K12)Gene Names: bioH (bioB)
EC: 3.1.1.85
Find proteins for P13001 (Escherichia coli (strain K12))
Go to UniProtKB:  P13001
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
3OH
Query on 3OH

Download SDF File 
Download CCD File 
A
3-HYDROXY-PROPANOIC ACID
C3 H6 O3
ALRHLSYJTWAHJZ-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.145 
  • Space Group: P 43
Unit Cell:
Length (Å)Angle (°)
a = 75.210α = 90.00
b = 75.210β = 90.00
c = 49.256γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
DTDISPLAYdata reduction
CNSrefinement
dtDisplaydata collection
REFMACrefinement
d*TREKdata scaling
d*TREKdata reduction
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-01-21
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.3: 2017-10-11
    Type: Advisory, Refinement description