3AG7 | pdb_00003ag7

An auxilin-like J-domain containing protein, JAC1 J-domain

• PDB DOI: https://doi.org/10.2210/pdb3AG7/pdb

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


• Deposited: 2010-03-24 Released: 2010-10-13 
• Deposition Author(s): Takano, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.231 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.172 (Depositor), 0.173 (DCC) 
• R-Value Observed: 
  0.175 (Depositor) 

Starting Model: experimental

Literature

Crystallographic and functional analyses of J-domain of JAC1 essential for chloroplast photorelocation movement in Arabidopsis thaliana

Takano, A., Suetsugu, N., Wada, M., Kohda, D.

(2010) Plant Cell Physiol 51: 1372-1376

• PubMed: 20562448 
• DOI: https://doi.org/10.1093/pcp/pcq089
• Primary Citation Related Structures: 
  3AG7


• PubMed Abstract: 
  

  An auxilin-like J-domain-containing protein, JAC1, is necessary for chloroplast movement in Arabidopsis thaliana, to capture photosynthetic light efficiently under weak light conditions. Here, we performed crystallographic and functional analyses of the J-domain of JAC1. The crystal structure of the J-domain is quite similar to that of bovine auxilin, and possesses a similar positively charged surface, which probably forms the interface with the Hsp70 chaperone. The mutation of the highly conserved HPD motif of the JAC1 J-domain abrogated the chloroplast photorelocation response. These results suggest that the requirement of JAC1 in chloroplast photorelocation movement is attributable to the J-domain's cochaperone activity.

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Organizational Affiliation: 
• Division of Structural Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content 

• Total Structure Weight: 11.94 kDa 
• Atom Count: 942 
• Modeled Residue Count: 105 
• Deposited Residue Count: 106 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative uncharacterized protein F9E10.5	A	106	Arabidopsis thaliana	Mutation(s): 0  Gene Names: At1g75100, F9E10.5, JAC1
UniProt
Find proteins for Q9C9Q4 (Arabidopsis thaliana) Explore Q9C9Q4  Go to UniProtKB:  Q9C9Q4

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.231 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.172 (Depositor), 0.173 (DCC) 
• R-Value Observed: 0.175 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 32.432	α = 90
b = 39.477	β = 90
c = 68.954	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-10-13 
Deposition Author(s): Takano, A.

Revision History  

• Version 1.0: 2010-10-13
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-11-01
  Changes: Data collection, Database references, Refinement description