› 4tr4

X-ray diffraction
1.93Å resolution

Mouse iodothyronine deiodinase 3 catalytic core, active site mutant SeCys->Cys

Released:
DOI: 10.2210/pdb4tr4/pdb
PDB entry 4tr4 coloured by chain, front view.
PDB entry 4tr4 coloured by chain, side view.
PDB entry 4tr4 coloured by chain, top view.
Source organism: Mus musculus
Primary publication:
Crystal structure of mammalian selenocysteine-dependent iodothyronine deiodinase suggests a peroxiredoxin-like catalytic mechanism.
Schweizer U, Schlicker C, Braun D, Köhrle J, Steegborn C
Proc Natl Acad Sci U S A 111 10526-31 (2014)
PMID: 25002520

Function and Biology Details

Reaction catalysed: 
3,3',5'-triiodo-L-thyronine + iodide + acceptor + H(+) = L-thyroxine + reduced acceptor
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-187622 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Thyroxine 5-deiodinase Chain: A
Molecule details ›
Chain: A
Length: 191 amino acids
Theoretical weight: 21.51 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: Q91ZI8 (Residues: 120-304; Coverage: 61%)
Gene name: Dio3
Sequence domains: Iodothyronine deiodinase
Structure domains: Glutaredoxin

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X10SA
Spacegroup: P212121
Unit cell:
a: 48.807Å b: 54.188Å c: 66.493Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.193 0.191 0.234
Expression system: Escherichia coli

Quick links

Citations

20 review citations

Enzymatic Halogenation and Dehalogenation Reactions: Pervasive and Mechanistically Diverse.
Agarwal et al. (2017)
19 more

4 mentions without citation

A Halogen Bonding Perspective on Iodothyronine Deiodinase Activity.
Marsan et al. (2020)
3 more