1QKK

Crystal structure of the receiver domain and linker region of DctD from Sinorhizobium meliloti

• PDB DOI: https://doi.org/10.2210/pdb1QKK/pdb

• Classification: TRANSCRIPTIONAL REGULATORY PROTEIN
• Organism(s): Sinorhizobium meliloti
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 1999-07-23 Released: 2000-07-30 
• Deposition Author(s): Meyer, M.G., Park, S., Zeringue, L., Staley, M., Mckinstry, M., Kaufman, R.I., Zhang, H., Yan, D., Yennawar, N., Farber, G.K., Nixon, B.T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.241 
• R-Value Work: 0.218 
• R-Value Observed: 0.218 

Literature

A dimeric two-component receiver domain inhibits the sigma54-dependent ATPase in DctD.

Meyer, M.G., Park, S., Zeringue, L., Staley, M., McKinstry, M., Kaufman, R.I., Zhang, H., Yan, D., Yennawar, N., Yennawar, H., Farber, G.K., Nixon, B.T.

(2001) FASEB J 15: 1326-1328

• PubMed: 11344129 
• DOI: https://doi.org/10.1096/fj.00-0516fje
• Primary Citation of Related Structures:  
  1QKK

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Organizational Affiliation: 

Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 16.82 kDa 
• Atom Count: 1,269 
• Modelled Residue Count: 140 
• Deposited Residue Count: 155 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
C4-DICARBOXYLATE TRANSPORT TRANSCRIPTIONAL REGULATORY PROTEIN	A	155	Sinorhizobium meliloti	Mutation(s): 3
UniProt
Find proteins for P13632 (Rhizobium meliloti (strain 1021)) Explore P13632  Go to UniProtKB:  P13632

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.241 
• R-Value Work: 0.218 
• R-Value Observed: 0.218 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.651	α = 90
b = 58.769	β = 90
c = 167.888	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-07-30 
Deposition Author(s): Meyer, M.G., Park, S., Zeringue, L., Staley, M., Mckinstry, M., Kaufman, R.I., Zhang, H., Yan, D., Yennawar, N., Farber, G.K., Nixon, B.T.

Revision History  

• Version 1.0: 2000-07-30
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-10-09
  Changes: Data collection, Database references
• Version 1.4: 2024-05-08
  Changes: Data collection, Database references