PDBe 6qtu

X-ray diffraction
1.3Å resolution

Crystal structure of Arabidopsis WD40 domain in complex with a BBX transcription factor

Source organism: Arabidopsis thaliana
Entry authors: Hothorn M, Lau K

Function and Biology Details

Reaction catalysed:
S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L-cysteine + N(6)-ubiquitinyl-[acceptor protein]-L-lysine
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
E3 ubiquitin-protein ligase COP1 Chain: A
Molecule details ›
Chain: A
Length: 330 amino acids
Theoretical weight: 37.2 KDa
Source organism: Arabidopsis thaliana
Expression system: Spodoptera frugiperda
  • Canonical: P43254 (Residues: 349-675; Coverage: 48%)
Gene names: At2g32950, COP1, T21L14.11
Sequence domains: WD domain, G-beta repeat
B-box zinc finger protein 24 Chain: B
Molecule details ›
Chain: B
Length: 10 amino acids
Theoretical weight: 1.16 KDa
Source organism: Arabidopsis thaliana
Expression system: Not provided
  • Canonical: Q96288 (Residues: 240-248; Coverage: 4%)
Gene names: At1g06040, BBX24, STO, T21E18.8, T21E18.9

Ligands and Environments

2 bound ligands:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X06DA
Spacegroup: P212121
Unit cell:
a: 48.679Å b: 54.992Å c: 102.664Å
α: 90° β: 90° γ: 90°
R R work R free
0.143 0.141 0.176
Expression systems:
  • Spodoptera frugiperda
  • Not provided