3HEB | pdb_00003heb

Crystal Structure of Response regulator receiver domain from Rhodospirillum rubrum

• PDB DOI: https://doi.org/10.2210/pdb3HEB/pdb

• Classification: transcription regulator
• Organism(s): Rhodospirillum rubrum ATCC 11170
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2009-05-08 Released: 2009-05-19 
• Deposition Author(s): Syed Ibrahim, B., Burley, S.K., Swaminathan, S., New York SGX Research Center for Structural Genomics (NYSGXRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 
  0.255 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.203 (Depositor), 0.210 (DCC) 
• R-Value Observed: 
  0.203 (Depositor) 

Literature

Crystal Structure of Response regulator receiver domain from Rhodospirillum rubrum

Syed Ibrahim, B., Burley, S.K., Swaminathan, S.

To be published.

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 PISA (software)

Macromolecule Content 

• Total Structure Weight: 34.79 kDa 
• Atom Count: 2,358 
• Modeled Residue Count: 284 
• Deposited Residue Count: 304 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Response regulator receiver domain protein (CheY)	A, B	152	Rhodospirillum rubrum ATCC 11170	Mutation(s): 0  Gene Names: Rru_A0665
UniProt
Find proteins for Q2RWM6 (Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIMB 8255 / S1)) Explore Q2RWM6  Go to UniProtKB:  Q2RWM6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4	C [auth A], D [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free:  0.255 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.203 (Depositor), 0.210 (DCC) 
• R-Value Observed: 0.203 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.121	α = 90
b = 75.071	β = 96.41
c = 48.571	γ = 90

Software Package:

Software Name	Purpose
CBASS	data collection
SHARP	phasing
SHELX	model building
ARP/wARP	model building
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SHELX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-05-19 
Deposition Author(s): Syed Ibrahim, B., Burley, S.K., Swaminathan, S., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2009-05-19
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.2: 2021-02-10
  Changes: Database references, Derived calculations, Structure summary
• Version 1.3: 2024-11-20
  Changes: Data collection, Database references, Structure summary