4AC4

CRYSTAL STRUCTURE OF TRANSTHYRETIN IN COMPLEX WITH LIGAND C-18


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.222 

wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Crystallographic Study of Novel Transthyretin Ligands Exhibiting Negative-Cooperativity between Two Thyroxine Binding Sites.

Tomar, D.Khan, T.Singh, R.R.Mishra, S.Gupta, S.Surolia, A.Salunke, D.M.

(2012) PLoS One 7: 43522

  • DOI: 10.1371/journal.pone.0043522
  • Primary Citation of Related Structures:  
    4ANK, 4ABQ, 4AC2, 4AC4, 4ABU, 4ABV, 4ABW

  • PubMed Abstract: 
  • Transthyretin (TTR) is a homotetrameric serum and cerebrospinal fluid protein that transports thyroxine (T4) and retinol by binding to retinol binding protein. Rate-limiting tetramer dissociation and rapid monomer misfolding and disassembly of TTR le ...

    Transthyretin (TTR) is a homotetrameric serum and cerebrospinal fluid protein that transports thyroxine (T4) and retinol by binding to retinol binding protein. Rate-limiting tetramer dissociation and rapid monomer misfolding and disassembly of TTR lead to amyloid fibril formation in different tissues causing various amyloid diseases. Based on the current understanding of the pathogenesis of TTR amyloidosis, it is considered that the inhibition of amyloid fibril formation by stabilization of TTR in native tetrameric form is a viable approach for the treatment of TTR amyloidosis.


    Organizational Affiliation

    Structural Biology Unit, National Institute of Immunology, New Delhi, India.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TRANSTHYRETINAB127Homo sapiensMutation(s): 0 
Gene Names: TTRPALB
Find proteins for P02766 (Homo sapiens)
Explore P02766 
Go to UniProtKB:  P02766
NIH Common Fund Data Resources
PHAROS  P02766
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HKA
Query on HKA

Download CCD File 
A, B
3-METHOXY-4-PHENOXYBENZOIC ACID
C14 H12 O4
BHLHNTNYVDUKFV-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
HKAIC50:  41000   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.222 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.33α = 90
b = 42.86β = 90
c = 64.28γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-12-26
    Type: Initial release
  • Version 1.1: 2014-10-29
    Changes: Database references
  • Version 1.2: 2015-04-01
    Changes: Database references
  • Version 1.3: 2019-01-30
    Changes: Data collection, Derived calculations, Experimental preparation, Other
  • Version 1.4: 2019-02-06
    Changes: Data collection, Experimental preparation
  • Version 1.5: 2019-07-17
    Changes: Data collection, Derived calculations