3FCN | pdb_00003fcn

Crystal structure of an alpha-helical protein of unknown function (rru_a3208) from rhodospirillum rubrum atcc 11170 at 1.45 A resolution

• PDB DOI: https://doi.org/10.2210/pdb3FCN/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Rhodospirillum rubrum ATCC 11170
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-11-21 Released: 2008-12-09 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 
  0.184 (Depositor), 0.197 (DCC) 
• R-Value Work: 
  0.161 (Depositor), 0.171 (DCC) 
• R-Value Observed: 
  0.162 (Depositor) 

Literature

Crystal structure of an alpha-helical protein of unknown function (Pfam01724) (YP_428290.1) from RHODOSPIRILLUM RUBRUM ATCC 11170 at 1.45 A resolution

Joint Center for Structural Genomics (JCSG)

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: 18.73 kDa 
• Atom Count: 1,752 
• Modeled Residue Count: 158 
• Deposited Residue Count: 164 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
an alpha-helical protein of unknown function (Pfam01724)	A	164	Rhodospirillum rubrum ATCC 11170	Mutation(s): 0  Gene Names: Rru_A3208, YP_428290.1
UniProt
Find proteins for Q2RPE2 (Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIMB 8255 / S1)) Explore Q2RPE2  Go to UniProtKB:  Q2RPE2

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free:  0.184 (Depositor), 0.197 (DCC) 
• R-Value Work:  0.161 (Depositor), 0.171 (DCC) 
• R-Value Observed: 0.162 (Depositor) 

Diffraction Data: https://doi.org/10.18430/M33FCN

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.707	α = 90
b = 54.561	β = 90
c = 57.25	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
SHELXD	phasing
autoSHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-12-09 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2008-12-09
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Refinement description, Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description
• Version 1.3: 2019-07-24
  Changes: Data collection, Derived calculations, Refinement description
• Version 1.4: 2023-02-01
  Changes: Database references
• Version 1.5: 2024-11-20
  Changes: Data collection, Structure summary