Biological Assembly 1  

 3D View: Structure

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 10.14 kDa 
• Atom Count: 710 
• Modelled Residue Count: 88 
• Deposited Residue Count: 88 
• Unique protein chains: 1

2MA3

NMR solution structure of the C-terminus of the minichromosome maintenance protein MCM from Methanothermobacter thermautotrophicus

• DOI: 10.2210/pdb2MA3/pdb
• BMRB: 19187

• Classification: REPLICATION
• Organism(s): Methanothermobacter thermautotrophicus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-06-26 Released: 2014-12-31 
• Deposition Author(s): Wiedemann, C., Ohlenschlager, O., Medagli, B., Onesti, S., Gorlach, M.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

Structure and regulatory role of the C-terminal winged helix domain of the archaeal minichromosome maintenance complex.

Wiedemann, C., Szambowska, A., Hafner, S., Ohlenschlager, O., Guhrs, K.H., Gorlach, M.

(2015) Nucleic Acids Res 43: 2958-2967

• PubMed: 25712103 
• DOI: 10.1093/nar/gkv120
• Primary Citation of Related Structures:  
  2M45, 2MA3


• PubMed Abstract: 
  

The minichromosome maintenance complex (MCM) represents the replicative DNA helicase both in eukaryotes and archaea. Here, we describe the solution structure of the C-terminal domains of the archaeal MCMs of Sulfolobus solfataricus (Sso) and Methanothermobacter thermautotrophicus (Mth). Those domains consist of a structurally conserved truncated winged helix (WH) domain lacking the two typical 'wings' of canonical WH domains. A less conserved N-terminal extension links this WH module to the MCM AAA+ domain forming the ATPase center. In the Sso MCM this linker contains a short α-helical element. Using Sso MCM mutants, including chimeric constructs containing Mth C-terminal domain elements, we show that the ATPase and helicase activity of the Sso MCM is significantly modulated by the short α-helical linker element and by N-terminal residues of the first α-helix of the truncated WH module. Finally, based on our structural and functional data, we present a docking-derived model of the Sso MCM, which implies an allosteric control of the ATPase center by the C-terminal domain.

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Organizational Affiliation: 

Research Group Biomolecular NMR Spectroscopy, Leibniz Institute for Age Research-Fritz Lipmann Institute (FLI), Beutenbergstr. 11, D-07745 Jena, Germany [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA replication initiator (Cdc21/Cdc54)	A	88	Methanothermobacter thermautotrophicus	Mutation(s): 0  Gene Names: MTH_1770 EC: 3.6.4.12
Find proteins for O27798 (Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H)) Explore O27798  Go to UniProtKB:  O27798

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 
• OLDERADO: 2MA3 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-06-26 
• Released Date: 2014-12-31 
Deposition Author(s): Wiedemann, C., Ohlenschlager, O., Medagli, B., Onesti, S., Gorlach, M.

Revision History  

• Version 1.0: 2014-12-31
  Type: Initial release
  
• Version 1.1: 2015-05-20
  Changes: Database references