3E35

Actinobacteria-specific protein of unknown function, SCO1997

• PDB DOI: https://doi.org/10.2210/pdb3E35/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Streptomyces coelicolor A3(2)
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-08-06 Released: 2009-06-23 
• Deposition Author(s): Gao, B., Gupta, R.S., Sugiman-Marangos, S., Junop, M.S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.234 
• R-Value Work: 0.175 
• R-Value Observed: 0.177 

Literature

Structural and phylogenetic analysis of a conserved actinobacteria-specific protein (ASP1; SCO1997) from Streptomyces coelicolor.

Gao, B., Sugiman-Marangos, S., Junop, M.S., Gupta, R.S.

(2009) BMC Struct Biol 9: 40-40

• PubMed: 19515238 
• DOI: https://doi.org/10.1186/1472-6807-9-40
• Primary Citation of Related Structures:  
  3E35


• PubMed Abstract: 
  

  The Actinobacteria phylum represents one of the largest and most diverse groups of bacteria, encompassing many important and well-characterized organisms including Streptomyces, Bifidobacterium, Corynebacterium and Mycobacterium. Members of this phylum are remarkably diverse in terms of life cycle, morphology, physiology and ecology. Recent comparative genomic analysis of 19 actinobacterial species determined that only 5 genes of unknown function uniquely define this large phylum 1. The cellular functions of these actinobacteria-specific proteins (ASP) are not known.

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Organizational Affiliation: 

Department of Biochemistry and Biomedical Science, McMaster University, Hamilton L8N3Z5, Canada. [e-mail]

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 36.07 kDa 
• Atom Count: 2,318 
• Modelled Residue Count: 269 
• Deposited Residue Count: 325 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Uncharacterized protein SCO1997	A	325	Streptomyces coelicolor A3(2)	Mutation(s): 0  Gene Names: SCO1997
UniProt
Find proteins for Q9S2K6 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)) Explore Q9S2K6  Go to UniProtKB:  Q9S2K6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MG	B [auth A], C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

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: 2.20 Å
• R-Value Free: 0.234 
• R-Value Work: 0.175 
• R-Value Observed: 0.177 
• Space Group: I 2 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 135.083	α = 90
b = 135.083	β = 90
c = 135.083	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-06-23 
Deposition Author(s): Gao, B., Gupta, R.S., Sugiman-Marangos, S., Junop, M.S.

Revision History  

• Version 1.0: 2009-06-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Source and taxonomy, Version format compliance