2KND

Psb27 structure from Synechocystis


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure of Psb27 in solution: implications for transient binding to photosystem II during biogenesis and repair

Cormann, K.U.Bangert, J.-A.Ikeuchi, M.Roegner, M.Stoll, R.Nowaczyk, M.M.

(2009) Biochemistry 48: 8768-8770

  • DOI: 10.1021/bi9012726
  • Primary Citation of Related Structures:  
    2KND

  • PubMed Abstract: 
  • Psb27 is a membrane-extrinsic subunit of photosystem II (PSII) where it is involved in the assembly and maintenance of this large membrane protein complex that catalyzes one of the key reactions in the biosphere, the light-induced oxidation of water. Here, we report for the first time the structure of Psb27 that was not observed in the previous crystal structures of PSII due to its transient binding mode ...

    Psb27 is a membrane-extrinsic subunit of photosystem II (PSII) where it is involved in the assembly and maintenance of this large membrane protein complex that catalyzes one of the key reactions in the biosphere, the light-induced oxidation of water. Here, we report for the first time the structure of Psb27 that was not observed in the previous crystal structures of PSII due to its transient binding mode. The Psb27 structure shows that the core of the protein is a right-handed four-helix bundle with an up-down-up-down topology. The electrostatic potential of the surface generated by the amphipathic helices shows a dipolar distribution which fits perfectly to the major PsbO binding site on the PSII complex. Moreover, the presented docking model could explain the function of Psb27, which prevents the binding of PsbO to facilitate the assembly of the Mn(4)Ca cluster.


    Organizational Affiliation

    Department of Plant Biochemistry and Biomolecular NMR, Ruhr-University Bochum, D-44780 Bochum, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II 11 kDa protein A110Synechocystis sp. PCC 6803Mutation(s): 0 
Gene Names: slr1645
Find proteins for P74367 (Synechocystis sp. (strain PCC 6803 / Kazusa))
Explore P74367 
Go to UniProtKB:  P74367
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 
  • OLDERADO: 2KND Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-09-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Source and taxonomy, Version format compliance