3ODV

X-ray structure of kaliotoxin by racemic protein crystallography


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.95 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Total chemical synthesis and X-ray structure of kaliotoxin by racemic protein crystallography.

Pentelute, B.L.Mandal, K.Gates, Z.P.Sawaya, M.R.Yeates, T.O.Kent, S.B.

(2010) Chem.Commun.(Camb.) 46: 8174-8176

  • DOI: 10.1039/c0cc03148h

  • PubMed Abstract: 
  • Here we report the total synthesis of kaliotoxin by 'one pot' native chemical ligation of three synthetic peptides. A racemic mixture of D- and L-kaliotoxin synthetic protein molecules gave crystals in the centrosymmetric space group P1 that diffract ...

    Here we report the total synthesis of kaliotoxin by 'one pot' native chemical ligation of three synthetic peptides. A racemic mixture of D- and L-kaliotoxin synthetic protein molecules gave crystals in the centrosymmetric space group P1 that diffracted to atomic-resolution (0.95 Å), enabling the X-ray structure of kaliotoxin to be determined by direct methods.


    Organizational Affiliation

    Department of Chemistry, Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Potassium channel toxin alpha-KTx 3.1
A, B
38Androctonus mauritanicus mauritanicusN/A
Find proteins for P24662 (Androctonus mauritanicus mauritanicus)
Go to UniProtKB:  P24662
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CIT
Query on CIT

Download SDF File 
Download CCD File 
B
CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N
 Ligand Interaction
TFA
Query on TFA

Download SDF File 
Download CCD File 
A, B
trifluoroacetic acid
C2 H F3 O2
DTQVDTLACAAQTR-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.95 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.188 
  • Space Group: P -1
Unit Cell:
Length (Å)Angle (°)
a = 25.150α = 109.39
b = 30.511β = 97.39
c = 41.097γ = 97.09
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
SHELXDphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2012-03-28
    Type: Other