4sgb

X-ray diffraction
2.1Å resolution

STRUCTURE OF THE COMPLEX OF STREPTOMYCES GRISEUS PROTEINASE B AND POLYPEPTIDE CHYMOTRYPSIN INHIBITOR-1 FROM RUSSET BURBANK POTATO TUBERS AT 2.1 ANGSTROMS RESOLUTION

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-133488 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Streptogrisin-B Chain: E
Molecule details ›
Chain: E
Length: 185 amino acids
Theoretical weight: 18.67 KDa
Source organism: Streptomyces griseus
Expression system: Not provided
UniProt:
  • Canonical: P00777 (Residues: 115-299; Coverage: 71%)
Gene name: sprB
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases
Proteinase inhibitor PCI-1 Chain: I
Molecule details ›
Chain: I
Length: 51 amino acids
Theoretical weight: 5.51 KDa
Source organism: Solanum tuberosum
Expression system: Not provided
UniProt:
  • Canonical: P01080 (Residues: 55-105; Coverage: 40%)
Gene name: PIN2K
Sequence domains: Potato type II proteinase inhibitor family
Structure domains: Wheat Germ Agglutinin (Isolectin 2); domain 1

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: P21
Unit cell:
a: 50.92Å b: 46.2Å c: 52.53Å
α: 90° β: 117.08° γ: 90°
R-values:
R R work R free
0.142 not available not available
Expression system: Not provided