6YPQ

Crystal structure of native Phycocyanin from T. elongatus in spacegroup R32 at 1.29 Angstroms


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.29 Å
  • R-Value Free: 0.170 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.153 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

C-phycocyanin as a highly attractive model system in protein crystallography: unique crystallization properties and packing-diversity screening.

Sarrou, I.Feiler, C.G.Falke, S.Peard, N.Yefanov, O.Chapman, H.

(2021) Acta Crystallogr D Struct Biol 77: 224-236

  • DOI: 10.1107/S2059798320016071
  • Primary Citation of Related Structures:  
    6YQG, 6YQ8, 6YPQ, 6YYJ

  • PubMed Abstract: 
  • The unique crystallization properties of the antenna protein C-phycocyanin (C-PC) from the thermophilic cyanobacterium Thermosynechococcus elongatus are reported and discussed. C-PC crystallizes in hundreds of significantly different conditions within a ...

    The unique crystallization properties of the antenna protein C-phycocyanin (C-PC) from the thermophilic cyanobacterium Thermosynechococcus elongatus are reported and discussed. C-PC crystallizes in hundreds of significantly different conditions within a broad pH range and in the presence of a wide variety of precipitants and additives. Remarkably, the crystal dimensions vary from a few micrometres, as used in serial crystallography, to several hundred micrometres, with a very diverse crystal morphology. More than 100 unique single-crystal X-ray diffraction data sets were collected from randomly selected crystals and analysed. The addition of small-molecule additives revealed three new crystal packings of C-PC, which are discussed in detail. The high propensity of this protein to crystallize, combined with its natural blue colour and its fluorescence characteristics, make it an excellent candidate as a superior and highly adaptable model system in crystallography. C-PC can be used in technical and methods development approaches for X-ray and neutron diffraction techniques, and as a system for comprehending the fundamental principles of protein crystallography.


    Organizational Affiliation

    Centre for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
C-phycocyanin alpha chain A162Thermosynechococcus elongatus BP-1Mutation(s): 0 
Gene Names: cpcAtlr1958
Find proteins for P50032 (Thermosynechococcus elongatus (strain BP-1))
Explore P50032 
Go to UniProtKB:  P50032
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
C-phycocyanin beta chain B172Thermosynechococcus elongatus BP-1Mutation(s): 0 
Gene Names: cpcBtlr1957
Find proteins for P50033 (Thermosynechococcus elongatus (strain BP-1))
Explore P50033 
Go to UniProtKB:  P50033
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MEN
Query on MEN
BL-PEPTIDE LINKINGC5 H10 N2 O3ASN
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.29 Å
  • R-Value Free: 0.170 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.153 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 187.169α = 90
b = 187.169β = 90
c = 59.927γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2021-01-20
    Type: Initial release
  • Version 1.1: 2021-02-17
    Changes: Database references