2NBA | pdb_00002nba

Solution NMR structure of the minor DNA-uptake pilin ComP from Neisseri subflava

• PDB DOI: https://doi.org/10.2210/pdb2NBA/pdb
• BMRB: 25969

• Classification: DNA BINDING PROTEIN
• Organism(s): Neisseria subflava NJ9703
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2016-02-02 Released: 2016-05-18 
• Deposition Author(s): Berry, J.L., Xu, Y.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

A Comparative Structure/Function Analysis of Two Type IV Pilin DNA Receptors Defines a Novel Mode of DNA Binding.

Berry, J.L., Xu, Y., Ward, P.N., Lea, S.M., Matthews, S.J., Pelicic, V.

(2016) Structure 24: 926-934

• PubMed: 27161979 
• DOI: https://doi.org/10.1016/j.str.2016.04.001
• Primary Citation Related Structures: 
  2NBA, 5HZ7


• PubMed Abstract: 
  

  DNA transformation is a widespread process allowing bacteria to capture free DNA by using filamentous nano-machines composed of type IV pilins. These proteins can act as DNA receptors as demonstrated by the finding that Neisseria meningitidis ComP minor pilin has intrinsic DNA-binding ability. ComP binds DNA better when it contains the DNA-uptake sequence (DUS) motif abundant in this species genome, playing a role in its trademark ability to selectively take up its own DNA. Here, we report high-resolution structures for meningococcal ComP and Neisseria subflava ComPsub, which recognize different DUS motifs. We show that they are structurally identical type IV pilins that pack readily into filament models and display a unique DD region delimited by two disulfide bonds. Functional analysis of ComPsub defines a new mode of DNA binding involving the DD region, adapted for exported DNA receptors.

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Organizational Affiliation: 
• MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, UK.
Centre for Structural Biology, Imperial College London, London SW7 2AZ, UK.
Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK.
Centre for Structural Biology, Imperial College London, London SW7 2AZ, UK. Electronic address: [e-mail].
MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, UK. Electronic address: [e-mail].

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 13.07 kDa 
• Atom Count: 914 
• Modeled Residue Count: 119 
• Deposited Residue Count: 119 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Prepilin-type cleavage/methylation N-terminal domain protein	A	119	Neisseria subflava NJ9703	Mutation(s): 0  Gene Names: NEISUBOT_04550

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-05-18 
Deposition Author(s): Berry, J.L., Xu, Y.

Revision History  

• Version 1.0: 2016-05-18
  Type: Initial release
  
• Version 1.1: 2016-06-01
  Changes: Database references
• Version 1.2: 2016-06-29
  Changes: Database references
• Version 1.3: 2024-11-20
  Changes: Data collection, Database references, Structure summary