6IGJ

Crystal structure of FT condition 4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.198 

wwPDB Validation   3D Report Full Report


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Literature

High-Resolution Crystal Structure of Arabidopsis FLOWERING LOCUS T Illuminates Its Phospholipid-Binding Site in Flowering.

Nakamura, Y.Lin, Y.C.Watanabe, S.Liu, Y.C.Katsuyama, K.Kanehara, K.Inaba, K.

(2019) iScience 21: 577-586

  • DOI: 10.1016/j.isci.2019.10.045
  • Primary Citation of Related Structures:  
    6IGG, 6IGH, 6IGI, 6IGJ

  • PubMed Abstract: 
  • Arabidopsis FLOWERING LOCUS T (FT) is a pivotal component of florigen, a long-range mobile flowering signal. Here, we determined the 1.0 Å-resolution crystal structure of FT, a significantly higher-resolution crystal structure of FT than previously reported one (2 ...

    Arabidopsis FLOWERING LOCUS T (FT) is a pivotal component of florigen, a long-range mobile flowering signal. Here, we determined the 1.0 Å-resolution crystal structure of FT, a significantly higher-resolution crystal structure of FT than previously reported one (2.6 Å). The present crystallographic studies revealed 4 alternative configurations with the precise location of the surrounding water molecules. Using this structural data, computational docking simulation predicted the putative binding sites for phosphatidylcholine (PC), an endogenous ligand that interacts with FT to modulate flowering time. In vitro reconstitution of the lipid-protein interaction showed that mutations at two of the predicted sites significantly compromised the lipid binding ability of FT. In planta, one of the mutant FT proteins significantly affected FT function in flowering, emphasizing the involvement of PC binding in modulating FT function. Our structural, biochemical, and transgenic analyses reveal the molecular mechanism of PC binding in FT-mediated flowering time control.


    Organizational Affiliation

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan; CREST, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan. Electronic address: kenji.inaba.a1@tohoku.ac.jp.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein FLOWERING LOCUS TA171Arabidopsis thalianaMutation(s): 2 
Gene Names: FTAt1g65480F5I14.3
UniProt
Find proteins for Q9SXZ2 (Arabidopsis thaliana)
Explore Q9SXZ2 
Go to UniProtKB:  Q9SXZ2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9SXZ2
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download Ideal Coordinates CCD File 
B [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.198 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.503α = 90
b = 53.503β = 90
c = 103.975γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-12-25
    Type: Initial release