5OR2

Crystal structures of PYR1/HAB1 in complex with synthetic analogues of Abscisic Acid

• PDB DOI: https://doi.org/10.2210/pdb5OR2/pdb

• Classification: PROTEIN BINDING
• Organism(s): Arabidopsis thaliana
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2017-08-15 Released: 2018-06-27 
• Deposition Author(s): Freigang, J.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.296 
• R-Value Work: 0.225 
• R-Value Observed: 0.229 

Literature

Insights into the in Vitro and in Vivo SAR of Abscisic Acid - Exploring Unprecedented Variations of the Side Chain via Cross-Coupling-Mediated Syntheses

Frackenpohl, J., Grill, E., Bojack, G., Baltz, R., Busch, M., Dittgen, J., Franke, J., Freigang, J., Gonzalez, S., Heinemann, I., Helmke, H., Hills, M., Hohmann, S., von Koskull-Doering, P., Kleemann, J., Lange, G., Lehr, S., Mueller, T., Peschel, E., Poree, F., Schmutzler, D., Schulz, A., Willms, L., Wunschel, C.

(2018) European J Org Chem 

• DOI: https://doi.org/10.1002/ejoc.201701687

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 59.51 kDa 
• Atom Count: 4,163 
• Modelled Residue Count: 474 
• Deposited Residue Count: 530 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Abscisic acid receptor PYR1	A	193	Arabidopsis thaliana	Mutation(s): 0  Gene Names: PYR1, ABIP6, RCAR11, At4g17870, T6K21.50
UniProt
Find proteins for O49686 (Arabidopsis thaliana) Explore O49686  Go to UniProtKB:  O49686

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein phosphatase 2C 16	B	337	Arabidopsis thaliana	Mutation(s): 0  Gene Names: HAB1, P2C-HA, At1g72770, F28P22.4 EC: 3.1.3.16
UniProt
Find proteins for Q9CAJ0 (Arabidopsis thaliana) Explore Q9CAJ0  Go to UniProtKB:  Q9CAJ0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A4H (Subject of Investigation/LOI)	C [auth A]	(2~{Z},4~{E})-3-cyclopropyl-5-[(1~{S})-2,6,6-trimethyl-1-oxidanyl-4-oxidanylidene-cyclohex-2-en-1-yl]penta-2,4-dienoic acid C17 H22 O4 HKEUSUYMMUPOQP-PZUGTFMISA-N
MN	D [auth B], E [auth B], F [auth B]	MANGANESE (II) ION Mn WAEMQWOKJMHJLA-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.296 
• R-Value Work: 0.225 
• R-Value Observed: 0.229 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 45.54	α = 90
b = 66.077	β = 90
c = 172.569	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2018-06-27 
Deposition Author(s): Freigang, J.

Revision History  

• Version 1.0: 2018-06-27
  Type: Initial release
  
• Version 1.1: 2024-01-17
  Changes: Data collection, Database references, Derived calculations, Refinement description