1H34

Crystal structure of lima bean trypsin inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.04 Å
  • R-Value Free: 0.275 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

In-House Phase Determination of the Lima Bean Trypsin Inhibitor: A Low-Resolution Sulfur-Sad Case

Debreczeni, J.E.Bunkoczi, G.Girmann, B.Sheldrick, G.M.

(2003) Acta Crystallogr.,Sect.D 59: 393


  • PubMed Abstract: 
  • SAD (single-wavelength anomalous diffraction) has enormous potential for phasing proteins using only the anomalous signal of the almost ubiquitous native sulfur, but requires extremely precise data. The previously unknown structure of the lima bean t ...

    SAD (single-wavelength anomalous diffraction) has enormous potential for phasing proteins using only the anomalous signal of the almost ubiquitous native sulfur, but requires extremely precise data. The previously unknown structure of the lima bean trypsin inhibitor (LBTI) was solved using highly redundant data collected to 3 A using a CCD detector with a rotating-anode generator and three-circle goniometer. The seven 'super-S' atoms (disulfide bridges) were located by dual-space recycling with SHELXD and the high solvent content enabled the density-modification program SHELXE to generate high-quality maps despite the modest resolution. Subsequently, a 2.05 A synchrotron data set was collected and used for further phase extension and structure refinement.


    Organizational Affiliation

    Lehrstuhl für Strukturchemie, Georg-August Universität, Göttingen, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BOWMAN-BIRK TYPE PROTEINASE INHIBITOR
A
83Phaseolus lunatusN/A
Find proteins for P01056 (Phaseolus lunatus)
Go to UniProtKB:  P01056
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.04 Å
  • R-Value Free: 0.275 
  • Space Group: I 21 3
Unit Cell:
Length (Å)Angle (°)
a = 109.157α = 90.00
b = 109.157β = 90.00
c = 109.157γ = 90.00
Software Package:
Software NamePurpose
SHELXEphasing
SCALEPACKdata scaling
DENZOdata reduction
SHELXDphasing
SHELXL-97refinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-02-06
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance