5UJV

Crystal structure of FePYR1 in complex with abscisic acid


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure determination and activity manipulation of the turfgrass ABA receptor FePYR1.

Ren, Z.Wang, Z.Zhou, X.E.Shi, H.Hong, Y.Cao, M.Chan, Z.Liu, X.Xu, H.E.Zhu, J.K.

(2017) Sci Rep 7: 14022-14022

  • DOI: 10.1038/s41598-017-14101-9
  • Primary Citation of Related Structures:  
    5UJV

  • PubMed Abstract: 
  • Turfgrass are widely cultivated ornamental plants that have important ecological, societal and economical values. However, many turfgrass species are susceptible to drought and demand frequent irrigation thus consuming large amounts of water. With th ...

    Turfgrass are widely cultivated ornamental plants that have important ecological, societal and economical values. However, many turfgrass species are susceptible to drought and demand frequent irrigation thus consuming large amounts of water. With the ultimate goal of improving drought resistance in turfgrass, we identified several ABA receptors in turfgrass that are important to mediate ABA signaling and drought stress response. The ABA receptor FePYR1 from turfgrass Festuca elata was demonstrated to bind ABA as a monomer. Crystal structure analysis revealed that FePYR1 recognizes and binds ABA by the common gate-latch-lock mechanism resembling the Arabidopsis ABA receptors, but the ABA binding pocket in FePYR1 shows discrepant residues resulting in different binding affinity to ABA. Structure-guided alterations of amino acid residues in FePYR1 generated ABA receptor variants with significantly increased ABA binding affinity. Expression of FePYR1 in Arabidopsis conferred enhanced drought resistance in the transgenic plants. These findings provided detailed information about FePYR1 and demonstrated that structure-assisted engineering could create superior ABA receptors for improving plant drought resistance. The detailed structural information of FePYR1 would also assist future rational design of small molecules targeting specific ABA receptors in economically important plant species.


    Organizational Affiliation

    Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, 47907, USA. jkzhu@sibs.ac.cn.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PYR1ABC212Festuca elataMutation(s): 0 
Find proteins for A0A2D1UXN2 (Festuca elata)
Explore A0A2D1UXN2 
Go to UniProtKB:  A0A2D1UXN2
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
A8S
Query on A8S

Download CCD File 
A, B, C
(2Z,4E)-5-[(1S)-1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl]-3-methylpenta-2,4-dienoic acid
C15 H20 O4
JLIDBLDQVAYHNE-YKALOCIXSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 
  • Space Group: P 42 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 110.62α = 90
b = 110.62β = 90
c = 124.2γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-11-08
    Type: Initial release
  • Version 1.1: 2018-11-28
    Changes: Data collection, Database references, Source and taxonomy, Structure summary