7ufg

Electron Microscopy
3.28Å resolution

Cryo-EM structure of PAPP-A in complex with IGFBP5

Released:
Source organism: Homo sapiens
Entry authors: Judge RA, Jain R, Hao Q, Ouch C, Sridar J, Smith CL, Wang JCK, Eaton D
Related structures: EMD-26475

Function and Biology Details

Reaction catalysed:
Cleavage of the 135-Met-|-Lys-136 bond in insulin-like growth factor binding protein (IGFBP)-4, and the 143-Ser-|-Lys-144 bond in IGFBP-5.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-150255 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Pappalysin-1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 1581 amino acids
Theoretical weight: 176.34 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: Q13219 (Residues: 81-1627; Coverage: 96%)
Gene name: PAPPA
Sequence domains:
Insulin-like growth factor-binding protein 5 Chains: C, D
Molecule details ›
Chains: C, D
Length: 272 amino acids
Theoretical weight: 30.88 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: P24593 (Residues: 21-272; Coverage: 100%)
Gene names: IBP5, IGFBP5
Sequence domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.28Å
Relevant EMDB volumes: EMD-26475
Expression system: Homo sapiens