8XIB | pdb_00008xib

Crystal structure of AtHPPD-2HPA complex

PDB DOI: https://doi.org/10.2210/pdb8XIB/pdb

Classification: OXIDOREDUCTASE
Organism(s): Arabidopsis thaliana
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2023-12-19 Released: 2024-12-25
Deposition Author(s): Dong, J., Lin, H.-Y., Yang, G.-F.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.10 Å
R-Value Free:
0.214 (Depositor), 0.214 (DCC)
R-Value Work:
0.183 (Depositor), 0.183 (DCC)
R-Value Observed:
0.184 (Depositor)

Starting Model: experimental
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Ligand Structure Quality Assessment

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Literature

Deciphering the Role of the 4-Hydroxyl Group in 4-Hydroxyphenylpyruvate Dioxygenase Catalysis through Structural Analysis

Ying, R.N., Zhang, X.J., Dong, J., Kandegama, W., Lin, H.Y., Dong, J., Yang, G.F.

(2025) Acs Agric Sci Technol 5: 2545-2553

DOI: https://doi.org/10.1021/acsagscitech.5c00707

Macromolecule Content

Total Structure Weight: 46.16 kDa
Atom Count: 3,030
Modeled Residue Count: 381
Deposited Residue Count: 417
Unique protein chains: 1

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
4-hydroxyphenylpyruvate dioxygenase	A	417	Arabidopsis thaliana	Mutation(s): 0 Gene Names: HPD, PDS1, At1g06570, F12K11.9 EC: 1.13.11.27
UniProt
Find proteins for P93836 (Arabidopsis thaliana) Explore P93836 Go to UniProtKB: P93836
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P93836
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
OHP Query on OHP Download:Ideal Coordinates CCD File SDF format, chain C [auth A] MOL2 format, chain C [auth A] mmCIF format, chain C [auth A]	C [auth A]	(2-HYDROXYPHENYL)ACETIC ACID C₈ H₈ O₃ CCVYRRGZDBSHFU-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Interactions & Density Focus chain C [auth A]
CO Query on CO Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	COBALT (II) ION Co XLJKHNWPARRRJB-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.10 Å
R-Value Free: 0.214 (Depositor), 0.214 (DCC)
R-Value Work: 0.183 (Depositor), 0.183 (DCC)
R-Value Observed: 0.184 (Depositor)

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 76.784	α = 90
b = 84.08	β = 100.18
c = 61.716	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2024-12-25

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History (Full details and data files)

Version 1.0: 2024-12-25
Type: Initial release
Version 1.1: 2026-04-22
Changes: Database references

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.