7qxs

Electron Microscopy
3.9Å resolution

Cryo-EM structure of human telomerase-DNA-TPP1-POT1 complex (with POT1 side chains)

Released:
Source organism: Homo sapiens
Primary publication:
Structural basis of human telomerase recruitment by TPP1-POT1.
Science 375 1173-1176 (2022)
PMID: 35201900
Related structures: EMD-14197

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero heptamer (preferred)
PDBe Complex ID:
PDB-CPX-249559 (preferred)
Entry contents:
5 distinct polypeptide molecules
1 distinct DNA molecule
1 distinct RNA molecule
Macromolecules (7 distinct):
Telomerase reverse transcriptase Chain: A
Molecule details ›
Chain: A
Length: 1132 amino acids
Theoretical weight: 127.2 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: O14746 (Residues: 1-1132; Coverage: 100%)
Gene names: EST2, TCS1, TERT, TRT
Sequence domains:
Histone H2A Chain: L
Molecule details ›
Chain: L
Length: 130 amino acids
Theoretical weight: 14.14 KDa
Source organism: Homo sapiens
UniProt:
  • Canonical: B2R5B3 (Residues: 1-130; Coverage: 100%)
Sequence domains:
Histone H2B Chain: M
Molecule details ›
Chain: M
Length: 166 amino acids
Theoretical weight: 18.07 KDa
Source organism: Homo sapiens
UniProt:
  • Canonical: B4DR52 (Residues: 1-166; Coverage: 100%)
Sequence domains: Core histone H2A/H2B/H3/H4
Adrenocortical dysplasia protein homolog Chain: O
Molecule details ›
Chain: O
Length: 458 amino acids
Theoretical weight: 49.01 KDa
Source organism: Homo sapiens
Expression system: Spodoptera
UniProt:
  • Canonical: Q96AP0 (Residues: 1-458; Coverage: 100%)
Gene names: ACD, PIP1, PTOP, TINT1, TPP1
Sequence domains: Shelterin complex subunit, TPP1/ACD
Protection of telomeres protein 1 Chain: P
Molecule details ›
Chain: P
Length: 634 amino acids
Theoretical weight: 71.52 KDa
Source organism: Homo sapiens
Expression system: Spodoptera
UniProt:
  • Canonical: Q9NUX5 (Residues: 1-634; Coverage: 100%)
Gene name: POT1
Sequence domains:
Telomeric DNA Chain: N
Molecule details ›
Chain: N
Length: 30 nucleotides
Theoretical weight: 9.5 KDa
RNA (256-MER) Chain: B
Molecule details ›
Chain: B
Length: 451 nucleotides
Theoretical weight: 145.48 KDa
Sequence domains: Vertebrate telomerase RNA

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.9Å
Relevant EMDB volumes: EMD-14197
Expression systems:
  • Homo sapiens
  • Spodoptera