1ALL

ALLOPHYCOCYANIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Isolation, crystallization, crystal structure analysis and refinement of allophycocyanin from the cyanobacterium Spirulina platensis at 2.3 A resolution.

Brejc, K.Ficner, R.Huber, R.Steinbacher, S.

(1995) J.Mol.Biol. 249: 424-440

  • DOI: 10.1006/jmbi.1995.0307

  • PubMed Abstract: 
  • The phycobiliprotein allophycocyanin from the cyanobacterium Spirulina platensis has been isolated and crystallized. The crystals belong to space group P6(3)22 with cell constants a = b = 101.9 A, c = 130.6 A, alpha = beta = 90 degrees, gamma = 120 d ...

    The phycobiliprotein allophycocyanin from the cyanobacterium Spirulina platensis has been isolated and crystallized. The crystals belong to space group P6(3)22 with cell constants a = b = 101.9 A, c = 130.6 A, alpha = beta = 90 degrees, gamma = 120 degrees, with one (alpha beta) monomer in the asymmetric unit. The three-dimensional structure of the (alpha beta) monomer was solved by multiple isomorphous replacement. The crystal structure has been refined in a cyclic manner by energy-restrained crystallographic refinement and model building. The conventional crystallographic R-factor of the final model is 19.6% with data from 8.0 to 2.3 A. The molecular structure of the subunits resembles other solved phycobiliprotein structures. In comparison to C-phycocyanin and b-phycoerythrin the major differences arise from deletions and insertions of segments involved in the protein-chromophore interactions. The stereochemistry of the alpha 84 and beta 84 chiral atoms are C(2)-R, C(3)-R and C(31)-R. The configuration (C(4)-Z, C(10)-Z and C(15)-Z) and the conformation (C(5)-anti, C(9)-syn and C(14)-anti) are equal for both chromophores.


    Organizational Affiliation

    Max-Planck-Institut für Biochemie, Martinsried, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ALLOPHYCOCYANIN
A
160Arthrospira platensisMutation(s): 0 
Gene Names: apcA
Find proteins for P72504 (Arthrospira platensis)
Go to UniProtKB:  P72504
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
ALLOPHYCOCYANIN
B
161Arthrospira platensisMutation(s): 0 
Gene Names: apcB
Find proteins for P72505 (Arthrospira platensis)
Go to UniProtKB:  P72505
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CYC
Query on CYC

Download SDF File 
Download CCD File 
A, B
PHYCOCYANOBILIN
C33 H40 N4 O6
VXTXPYZGDQPMHK-GMXXPEQVSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MEN
Query on MEN
B
L-PEPTIDE LINKINGC5 H10 N2 O3ASN
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.196 
  • Space Group: P 63 2 2
Unit Cell:
Length (Å)Angle (°)
a = 101.900α = 90.00
b = 101.900β = 90.00
c = 130.600γ = 120.00
Software Package:
Software NamePurpose
CCP4data scaling
X-PLORrefinement
X-PLORmodel building
MOSFLMdata reduction
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-07-11
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance