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 
  • R-Value Observed: 0.189 

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
  • Primary Citation of Related Structures:  
    3ODV

  • 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 diffracted to atomic-resolution (0 ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Potassium channel toxin alpha-KTx 3.1A, B38Androctonus mauritanicus mauritanicusMutation(s): 0 
UniProt
Find proteins for P24662 (Androctonus mauritanicus mauritanicus)
Explore P24662 
Go to UniProtKB:  P24662
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CIT
Query on CIT

Download Ideal Coordinates CCD File 
E [auth B], F [auth B]CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N
 Ligand Interaction
TFA
Query on TFA

Download Ideal Coordinates CCD File 
C [auth A], D [auth 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 
  • R-Value Observed: 0.189 
  • Space Group: P -1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 25.15α = 109.39
b = 30.511β = 97.39
c = 41.097γ = 97.09
Software Package:
Software NamePurpose
SHELXDphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

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