1WX4

Crystal structure of the oxy-form of the copper-bound Streptomyces castaneoglobisporus tyrosinase complexed with a caddie protein prepared by the addition of dithiothreitol


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystallographic Evidence That the Dinuclear Copper Center of Tyrosinase Is Flexible during Catalysis

Matoba, Y.Kumagai, T.Yamamoto, A.Yoshitsu, H.Sugiyama, M.

(2006) J.Biol.Chem. 281: 8981-8990

  • DOI: 10.1074/jbc.M509785200
  • Primary Citation of Related Structures:  
  • Also Cited By: 3AX0, 3AWZ, 3AWY, 3AWX, 3AWW, 3AWV, 3AWU, 3AWT, 3AWS, 2ZWG, 2ZWF, 2ZWE, 2ZWD, 2ZMZ, 2ZMY

  • PubMed Abstract: 
  • At high resolution, we determined the crystal structures of copper-bound and metal-free tyrosinase in a complex with ORF378 designated as a "caddie" protein because it assists with transportation of two CuII ions into the tyrosinase catalytic center. ...

    At high resolution, we determined the crystal structures of copper-bound and metal-free tyrosinase in a complex with ORF378 designated as a "caddie" protein because it assists with transportation of two CuII ions into the tyrosinase catalytic center. These structures suggest that the caddie protein covers the hydrophobic molecular surface of tyrosinase and interferes with the binding of a substrate tyrosine to the catalytic site of tyrosinase. The caddie protein, which consists of one six-strandedbeta-sheet and one alpha-helix, has no similarity with all proteins deposited into the Protein Data Bank. Although tyrosinase and catechol oxidase are classified into the type 3 copper protein family, the latter enzyme lacks monooxygenase activity. The difference in catalytic activity is based on the structural observations that a large vacant space is present just above the active center of tyrosinase and that one of the six His ligands for the two copper ions is highly flexible. These structural characteristics of tyrosinase suggest that, in the reaction that catalyzes the ortho-hydroxylation of monophenol, one of the two Cu(II) ions is coordinated by the peroxide-originated oxygen bound to the substrate. Our crystallographic study shows evidence that the tyrosinase active center formed by dinuclear coppers is flexible during catalysis.


    Organizational Affiliation

    Department of Molecular Microbiology and Biotechnology, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
tyrosinase
A
281Streptomyces castaneoglobisporusMutation(s): 0 
Find proteins for Q83WS2 (Streptomyces castaneoglobisporus)
Go to UniProtKB:  Q83WS2
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
MelC
B
134Streptomyces castaneoglobisporusMutation(s): 0 
Find proteins for Q83WS1 (Streptomyces castaneoglobisporus)
Go to UniProtKB:  Q83WS1
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PER
Query on PER

Download SDF File 
Download CCD File 
A
PEROXIDE ION
O2
ANAIPYUSIMHBEL-UHFFFAOYSA-N
 Ligand Interaction
CU
Query on CU

Download SDF File 
Download CCD File 
A, B
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
NO3
Query on NO3

Download SDF File 
Download CCD File 
A, B
NITRATE ION
N O3
NHNBFGGVMKEFGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.188 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 65.360α = 90.00
b = 98.230β = 90.00
c = 55.170γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
CCP4data scaling
X-PLORrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-01-31
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-11-16
    Type: Atomic model