3p8f

X-ray diffraction
2Å resolution

Crystal Structure of MT-SP1 in complex with SFTI-1

Released:

Function and Biology Details

Reaction catalysed:
Cleaves various synthetic substrates with Arg or Lys at the P1 position and prefers small side-chain amino acids, such as Ala and Gly, at the P2 position
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-175543 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Suppressor of tumorigenicity 14 protein Chain: A
Molecule details ›
Chain: A
Length: 241 amino acids
Theoretical weight: 26.48 KDa
Source organism: Homo sapiens
Expression system: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q9Y5Y6 (Residues: 615-855; Coverage: 28%)
Gene names: PRSS14, SNC19, ST14, TADG15
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases
Trypsin inhibitor 1 Chain: I
Molecule details ›
Chain: I
Length: 14 amino acids
Theoretical weight: 1.54 KDa
Source organism: Helianthus annuus
Expression system: Not provided
UniProt:
  • Canonical: Q4GWU5 (Residues: 40-53; Coverage: 45%)
Gene name: sfti1

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P41212
Unit cell:
a: 75.862Å b: 75.862Å c: 94.094Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.194 0.192 0.245
Expression systems:
  • Saccharomyces cerevisiae
  • Not provided