1sws

X-ray diffraction
2Å resolution

CORE-STREPTAVIDIN MUTANT D128A AT PH 4.5

Released:

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Streptavidin Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 127 amino acids
Theoretical weight: 13.24 KDa
Source organism: Streptomyces avidinii
Expression system: Escherichia coli
UniProt:
  • Canonical: P22629 (Residues: 37-163; Coverage: 80%)
Sequence domains: Avidin family
Structure domains: Avidin-like

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: P21
Unit cell:
a: 48Å b: 66.3Å c: 82.3Å
α: 90° β: 97.3° γ: 90°
R-values:
R R work R free
0.191 not available 0.272
Expression system: Escherichia coli