› 7agc

X-ray diffraction
1.35Å resolution

Protease Sapp1p from Candida parapsilosis in complex with KB74

Released:
DOI: 10.2210/pdb7agc/pdb
PDB entry 7agc coloured by chain, front view.
PDB entry 7agc coloured by chain, side view.
PDB entry 7agc coloured by chain, top view.
Source organisms:
Primary publication:
Structural determinants for subnanomolar inhibition of the secreted aspartic protease Sapp1p from Candida parapsilosis.
Dostál J, Brynda J, Vaňková L, Zia SR, Pichová I, Heidingsfeld O, Lepšík M
OpenAccess logo J Enzyme Inhib Med Chem 36 914-921 (2021)
PMID: 33843395

Function and Biology Details

Reaction catalysed: 
Preferential cleavage at the carboxyl of hydrophobic amino acids, but fails to cleave 15-Leu-|-Tyr-16, 16-Tyr-|-Leu-17 and 24-Phe-|-Phe-25 of insulin B chain. Activates trypsinogen, and degrades keratin.
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-152523 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Candidapepsin-1 Chains: A, B, D, F
Molecule details ›
Chains: A, B, D, F
Length: 339 amino acids
Theoretical weight: 35.87 KDa
Source organism: Candida parapsilosis
Expression system: Candida parapsilosis
UniProt:
  • Canonical: P32951 (Residues: 63-402; Coverage: 90%)
Gene names: ACPR, SAPP1
Sequence domains: Eukaryotic aspartyl protease
KB74 Chains: C, E, G, I
Molecule details ›
Chains: C, E, G, I
Length: 6 amino acids
Theoretical weight: 841 Da
Source organism: Streptomyces albus
Expression system: Not provided

Ligands and Environments

4 bound ligands:
Ligand MES 1 x MES
Ligand PEG 2 x PEG
Ligand FOR 4 x FOR
Ligand PGE 1 x PGE
1 modified residue:
Ligand ZQN 4 x ZQN

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.1
Spacegroup: P212121
Unit cell:
a: 87.253Å b: 87.359Å c: 157.683Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.164 0.163 0.186
Expression systems:
  • Candida parapsilosis
  • Not provided

Quick links

Citations

1 review citation

Secreted Aspartic Proteinases: Key Factors in Candida Infections and Host-Pathogen Interactions.
Bras et al. (2024)

1 mention without citation

Structural determinants for subnanomolar inhibition of the secreted aspartic protease Sapp1p from Candida parapsilosis.
Dostál et al. (2021)