1OO2

Crystal structure of transthyretin from Sparus aurata


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.56 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Distinctive binding and structural properties of piscine transthyretin.

Folli, C.Pasquato, N.Ramazzina, I.Battistutta, R.Zanotti, G.Berni, R.

(2003) Febs Lett. 555: 279-284


  • PubMed Abstract: 
  • The thyroid hormone binding protein transthyretin (TTR) forms a macromolecular complex with the retinol-specific carrier retinol binding protein (RBP) in the blood of higher vertebrates. Piscine TTR is shown here to exhibit high binding affinity for ...

    The thyroid hormone binding protein transthyretin (TTR) forms a macromolecular complex with the retinol-specific carrier retinol binding protein (RBP) in the blood of higher vertebrates. Piscine TTR is shown here to exhibit high binding affinity for L-thyroxine and negligible affinity for RBP. The 1.56 A resolution X-ray structure of sea bream TTR, compared with that of human TTR, reveals a high degree of conservation of the thyroid hormone binding sites. In contrast, some amino acid differences in discrete regions of sea bream TTR appear to be responsible for the lack of protein-protein recognition, providing evidence for the crucial role played by a limited number of residues in the interaction between RBP and TTR. Overall, this study makes it possible to draw conclusions on evolutionary relationships for RBPs and TTRs of phylogenetically distant vertebrates.


    Related Citations: 
    • Structure of a complex of two plasma proteins: transthyretin and retinol-binding protein
      Monaco, H.L.,Rizzi, M.,Coda, A.
      (1995) Science 268: 1039
    • The structure of human retinol-binding protein (RBP) with its carrier protein transthyretin reveals an interaction with the carboxy terminus of RBP
      Naylor, H.,Newcomer, M.E.
      (1999) Biochemistry 38: 2647
    • A comparative analysis of 23 structures of the amyloidogenic protein transthyretin
      Hornberg, A.,Eneqvist,T.,Olofsson, A.,Lundgren, E.,Sauer-Eriksson, A.E.
      (2000) J.Mol.Biol. 302: 649


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University of Parma, Parco Area delle Scienze 23/A, 43100 Parma, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
transthyretin
A, B, C, D
119Sparus aurataN/A
Find proteins for Q9PTT3 (Sparus aurata)
Go to UniProtKB:  Q9PTT3
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CD
Query on CD

Download SDF File 
Download CCD File 
C
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.56 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.197 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 96.452α = 90.00
b = 65.622β = 97.40
c = 70.834γ = 90.00
Software Package:
Software NamePurpose
SHELXL-97refinement
CCP4data scaling
AMoREphasing
MOSFLMdata reduction
SHELXmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-01-20
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance