Biological Assembly 1  

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Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content

• Total Structure Weight: 23974.01 
• Atom Count: 1493 
• Residue Count: 209 
• Unique protein chains: 1

1E20

The FMN binding protein AtHal3

• DOI: 10.2210/pdb1E20/pdb

• Classification: FLAVOPROTEIN
• Organism(s): Arabidopsis thaliana
• Expression System: Escherichia coli


• Deposited: 2000-05-12 Released: 2000-09-11 
• Deposition Author(s): Albert, A., Martinez-Ripoll, M., Espinosa-Ruiz, A., Yenush, L., Culianez-Macia, F.A., Serrano, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.02 Å
• R-Value Free: 0.260 
• R-Value Work: 0.210 

Literature

The X-Ray Structure of the Fmn-Binding Protein Athal3 Provides the Structural Basis for the Activity of a Regulatory Subunit Involved in Signal Transduction

Albert, A., Martinez-Ripoll, M., Espinosa-Ruiz, A., Yenush, L., Culianez-Macia, F.A., Serrano, R.

(2000) Structure 8: 961

• PubMed: 10986463 


• PubMed Abstract: 
  

The Arabidopsis thaliana HAL3 gene product encodes for an FMN-binding protein (AtHal3) that is related to plant growth and salt and osmotic tolerance. AtHal3 shows sequence homology to ScHal3, a regulatory subunit of the Saccharomyces cerevisae serine/threonine phosphatase PPz1. It has been proposed that AtHal3 and ScHal3 have similar roles in cellular physiology, as Arabidopsis transgenic plants that overexpress AtHal3 and yeast cells that overexpress ScHal3 display similar phenotypes of improved salt tolerance. The enzymatic activity of AtHal3 has not been investigated. However, the AtHal3 sequence is homologous to that of EpiD, a flavoprotein from Staphylococcus epidermidis that recognizes a peptidic substrate and subsequently catalyzes the alpha, beta-dehydrogenation of its C-terminal cysteine residue.

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Organizational Affiliation: 

Grupo de Cristalografía Macromolecular y Biología Estructural, Instituto de Química Física 'Rocasolano', Consejo Superior de Investigaciones Científicas, Serrano 119, E-28006, Madrid, Spain. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
HALOTOLERANCE PROTEIN HAL3	A	209	Arabidopsis thaliana	Mutation(s): 0  Gene Names: HAL3A (COAC1) EC: 4.1.1.36
Find proteins for Q9SWE5 (Arabidopsis thaliana) Go to UniProtKB:  Q9SWE5

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
FMN	A	FLAVIN MONONUCLEOTIDE RIBOFLAVIN MONOPHOSPHATE C17 H21 N4 O9 P FVTCRASFADXXNN-SCRDCRAPSA-N
BME	A	BETA-MERCAPTOETHANOL C2 H6 O S DGVVWUTYPXICAM-UHFFFAOYSA-N
NI	A	NICKEL (II) ION Ni VEQPNABPJHWNSG-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.02 Å
• R-Value Free: 0.260 
• R-Value Work: 0.210 
• Space Group: P 6₃

Unit Cell:

Length (Å)	Angle (°)
a = 112.309	α = 90.00
b = 112.309	β = 90.00
c = 33.182	γ = 120.00

Software Package:

Software Name	Purpose
SCALA	data scaling
SHARP	phasing
REFMAC	refinement
MOSFLM	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-05-12 
• Released Date: 2000-09-11 
• Deposition Author(s): Albert, A., Martinez-Ripoll, M., Espinosa-Ruiz, A., Yenush, L., Culianez-Macia, F.A., Serrano, R.

Revision History 

• Version 1.0: 2000-09-11
  Type: Initial release
• Version 1.1: 2011-05-08
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2017-07-12
  Type: Advisory, Derived calculations
• Version 1.4: 2018-05-30
  Type: Data collection
• Version 1.5: 2018-10-24
  Type: Advisory, Data collection, Derived calculations