1cq4

X-ray diffraction
1.8Å resolution

CI2 MUTANT WITH TETRAGLUTAMINE (MGQQQQGM) REPLACING MET59

Released:
Source organism: Hordeum vulgare

Function and Biology Details

Structure analysis Details

Assemblies composition:
hetero tetramer (preferred)
hetero dodecamer
hetero 24-mer
PDBe Complex ID:
PDB-CPX-133917 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Subtilisin-chymotrypsin inhibitor-2A Chain: A
Molecule details ›
Chain: A
Length: 47 amino acids
Theoretical weight: 5.21 KDa
Source organism: Hordeum vulgare
Expression system: Escherichia coli
UniProt:
  • Canonical: P01053 (Residues: 21-60; Coverage: 48%)
Sequence domains: Potato inhibitor I family
Subtilisin-chymotrypsin inhibitor-2A Chain: B
Molecule details ›
Chain: B
Length: 24 amino acids
Theoretical weight: 2.88 KDa
Source organism: Hordeum vulgare
Expression system: Escherichia coli
UniProt:
  • Canonical: P01053 (Residues: 61-84; Coverage: 29%)
Sequence domains: Potato inhibitor I family

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE X11
Spacegroup: P622
Unit cell:
a: 68.267Å b: 68.267Å c: 60.833Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.24 0.24 0.3
Expression system: Escherichia coli