5A11

The crystal structure of Ta-TFP, a thiocyanate-forming protein involved in glucosinolate breakdown (space group P21)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.47 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.262 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

The Crystal Structure of the Thiocyanate-Forming Protein from Thlaspi Arvense, a Kelch Protein Involved in Glucosinolate Breakdown.

Gumz, F.Krausze, J.Eisenschmidt, D.Backenkohler, A.Barleben, L.Brandt, W.Wittstock, U.

(2015) Plant Mol Biol 89: 67

  • DOI: 10.1007/s11103-015-0351-9
  • Primary Citation of Related Structures:  
    5A10, 5A11

  • PubMed Abstract: 
  • Kelch repeat-containing proteins are involved in diverse cellular processes, but only a small subset of plant kelch proteins has been functionally characterized. Thiocyanate-forming protein (TFP) from field-penny cress, Thlaspi arvense (Brassicaceae) ...

    Kelch repeat-containing proteins are involved in diverse cellular processes, but only a small subset of plant kelch proteins has been functionally characterized. Thiocyanate-forming protein (TFP) from field-penny cress, Thlaspi arvense (Brassicaceae), is a representative of specifier proteins, a group of kelch proteins involved in plant specialized metabolism. As components of the glucosinolate-myrosinase system of the Brassicaceae, specifier proteins determine the profile of bioactive products formed when plant tissue is disrupted and glucosinolates are hydrolyzed by myrosinases. Here, we describe the crystal structure of TaTFP at a resolution of 1.4 Å. TaTFP crystallized as homodimer. Each monomer forms a six-blade β-propeller with a wide "top" and a narrower "bottom" opening with distinct strand-connecting loops protruding far beyond the lower propeller surface. Molecular modeling and mutational analysis identified residues for glucosinolate aglucone and Fe(2+) cofactor binding within these loops. As the first experimentally determined structure of a plant kelch protein, the crystal structure of TaTFP not only enables more detailed mechanistic studies on glucosinolate breakdown product formation, but also provides a new basis for research on the diverse roles and mechanisms of other kelch proteins in plants.


    Organizational Affiliation

    Institute of Pharmaceutical Biology, Technische Universität Braunschweig, Mendelssohnstr. 1, 38106, Braunschweig, Germany. u.wittstock@tu-bs.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
THIOCYANATE FORMING PROTEINAB356Thlaspi arvenseMutation(s): 0 
Find proteins for G1FNI6 (Thlaspi arvense)
Explore G1FNI6 
Go to UniProtKB:  G1FNI6
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IOD
Query on IOD

Download CCD File 
A, B
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.47 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.262 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.367α = 90
b = 89.613β = 101.08
c = 83.842γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-08-26
    Type: Initial release
  • Version 1.1: 2015-09-30
    Changes: Database references