1h2u

X-ray diffraction
2.4Å resolution

Structure of the human nuclear cap-binding-complex (CBC) in complex with a cap analogue m7GpppG

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-156542 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Nuclear cap-binding protein subunit 1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 723 amino acids
Theoretical weight: 83.84 KDa
Source organism: Homo sapiens
Expression system: Trichoplusia ni
UniProt:
  • Canonical: Q09161 (Residues: 20-790; Coverage: 92%)
Gene names: CBP80, NCBP, NCBP1
Sequence domains:
Structure domains: Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Nuclear cap-binding protein subunit 2 Chains: X, Y
Molecule details ›
Chains: X, Y
Length: 156 amino acids
Theoretical weight: 18.03 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P52298 (Residues: 1-156; Coverage: 100%)
Gene names: CBP20, NCBP2, PIG55
Sequence domains: RNA recognition motif
Structure domains: Alpha-Beta Plaits

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: P212121
Unit cell:
a: 111.838Å b: 125.72Å c: 188.756Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.194 0.194 0.245
Expression systems:
  • Trichoplusia ni
  • Escherichia coli BL21