4bl0

X-ray diffraction
1.95Å resolution

Crystal structure of yeast Bub3-Bub1 bound to phospho-Spc105

Released:

Function and Biology Details

Reaction catalysed:
ATP + a protein = ADP + a phosphoprotein
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-150754 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Cell cycle arrest protein BUB3 Chains: A, D
Molecule details ›
Chains: A, D
Length: 341 amino acids
Theoretical weight: 38.48 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P26449 (Residues: 1-341; Coverage: 100%)
Gene names: BUB3, OR26.16, YOR026W
Sequence domains: WD domain, G-beta repeat
Structure domains: YVTN repeat-like/Quinoprotein amine dehydrogenase
Checkpoint serine/threonine-protein kinase BUB1 Chains: B, E
Molecule details ›
Chains: B, E
Length: 75 amino acids
Theoretical weight: 8.78 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P41695 (Residues: 289-359; Coverage: 7%)
Gene names: BUB1, G7542, YGR188C
Sequence domains: Mad3/BUB1 homology region 2
Structure domains: Arc Repressor Mutant, subunit A
Spindle pole body component SPC105 Chains: C, F
Molecule details ›
Chains: C, F
Length: 19 amino acids
Theoretical weight: 2.35 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Not provided
UniProt:
  • Canonical: P53148 (Residues: 165-183; Coverage: 2%)
Gene names: SPC105, YGL093W

Ligands and Environments

1 bound ligand:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X10SA
Spacegroup: C2
Unit cell:
a: 138.74Å b: 57.9Å c: 118.67Å
α: 90° β: 102.53° γ: 90°
R-values:
R R work R free
0.18 0.179 0.192
Expression systems:
  • Escherichia coli BL21
  • Not provided