2i0q

X-ray diffraction
1.91Å resolution

Crystal structure of a telomere single-strand DNA-protein complex from O. nova with full-length alpha and beta telomere proteins

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-115378 (preferred)
Entry contents:
2 distinct polypeptide molecules
1 distinct DNA molecule
Macromolecules (3 distinct):
Telomere-binding protein subunit alpha Chain: A
Molecule details ›
Chain: A
Length: 495 amino acids
Theoretical weight: 56.17 KDa
Source organism: Sterkiella nova
Expression system: Escherichia coli
UniProt:
  • Canonical: P29549 (Residues: 1-495; Coverage: 100%)
Gene names: MAC-56A, MAC-56K, MAC-56S
Sequence domains: Telomeric single stranded DNA binding POT1/CDC13
Structure domains: Nucleic acid-binding proteins
Telomere-binding protein subunit beta Chain: B
Molecule details ›
Chain: B
Length: 385 amino acids
Theoretical weight: 41.53 KDa
Source organism: Sterkiella nova
Expression system: Escherichia coli
UniProt:
  • Canonical: P16458 (Residues: 1-385; Coverage: 100%)
Gene names: MAC-41A, MAC-41S
Sequence domains: Telomere-binding protein beta subunit (TEBP beta)
Structure domains: Telomere-binding Protein Beta Subunit; Chain
5'-D(*GP*GP*GP*TP*TP*TP*TP*GP*GP*GP*G)-3' Chain: D
Molecule details ›
Chain: D
Length: 11 nucleotides
Theoretical weight: 3.48 KDa

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 12.3.1
Spacegroup: P6122
Unit cell:
a: 93.331Å b: 93.331Å c: 423.779Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.245 0.243 0.264
Expression system: Escherichia coli