2MXA

Solution structure of the NDH-1 complex subunit CupS from Thermosynechococcus elongatus


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

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This is version 1.1 of the entry. See complete history


Literature

Solution structure of the NDH-1 complex subunit CupS from Thermosynechococcus elongatus.

Korste, A.Wulfhorst, H.Ikegami, T.Nowaczyk, M.M.Stoll, R.

(2015) Biochim Biophys Acta 1847: 1212-1219

  • DOI: 10.1016/j.bbabio.2015.05.003
  • Primary Citation of Related Structures:  
    2MXA

  • PubMed Abstract: 
  • The cyanobacterial multi-subunit membrane protein complex NDH-1 is both structurally and functionally related to Complex I of eubacteria and mitochondria. In addition to functions in respiration and cyclic electron transfer around photosystem I (PSI), the cyanobacterial NDH-1 complex is involved in a unique mechanism for inorganic carbon concentration ...

    The cyanobacterial multi-subunit membrane protein complex NDH-1 is both structurally and functionally related to Complex I of eubacteria and mitochondria. In addition to functions in respiration and cyclic electron transfer around photosystem I (PSI), the cyanobacterial NDH-1 complex is involved in a unique mechanism for inorganic carbon concentration. Although the crystal structures of the similar respiratory Complex I from Thermus thermophilus and Escherichia coli are known, atomic structural information is not available for the cyanobacterial NDH-1 complex yet. In particular, the structures of those subunits that are not homologous to Complex I will help to understand their distinct functions. The 15.7kDa protein CupS is a small soluble subunit of the complex variant NDH-1MS, which is thought to play a role in CO2 conversion. Here, we present the NMR structure of CupS from Thermosynechococcus elongatus, which is the very first structure of a specific cyanobacterial NDH-1 complex subunit. CupS shares a structural similarity with members of the Fasciclin protein superfamily. The structural comparison to Fasciclin type proteins based on known NMR structures and protein sequences of human TGFBIp, MPB70 from Mycobacterium bovis, and Fdp from Rhodobacter sphaeroides, together with a virtual docking model of CupS and NdhF3, provide first insight into the specific binding of CupS to the NDH-1MS complex at atomic resolution.


    Organizational Affiliation

    Biomolecular Spectroscopy, Faculty of Chemistry and Biochemistry, Ruhr University of Bochum, Bochum, Germany. Electronic address: raphael.stoll@ruhr-uni-bochum.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NDH-1 complex sensory subunit CupSA159Thermosynechococcus elongatusMutation(s): 0 
Gene Names: CupS
Find proteins for Q8DMA1 (Thermosynechococcus elongatus (strain BP-1))
Explore Q8DMA1 
Go to UniProtKB:  Q8DMA1
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2MXA Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-06-10
    Type: Initial release
  • Version 1.1: 2015-08-26
    Changes: Database references