5d23

X-ray diffraction
1.95Å resolution

The crystal structure of STPR from Bombyx mori in complex with 13-bp DNA derived from the +290 site of fibroin gene

Released:
Source organisms:
Primary publication:
Structures of an all-α protein running along the DNA major groove.
OpenAccess logo Nucleic Acids Res 44 3936-45 (2016)
PMID: 26939889

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-118523 (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct DNA molecule
Macromolecules (2 distinct):
STPR domain-containing protein Chain: A
Molecule details ›
Chain: A
Length: 102 amino acids
Theoretical weight: 12.05 KDa
Source organism: Bombyx mori
Expression system: Escherichia coli
UniProt:
  • Canonical: Q5FBS0 (Residues: 99-193; Coverage: 44%)
Gene names: 692516, fmbp-1
Sequence domains: STPRs (score and three amino acid peptide repeats)
DNA (26-MER) Chain: B
Molecule details ›
Chain: B
Length: 26 nucleotides
Theoretical weight: 7.98 KDa
Source organism: synthetic construct
Expression system: Not provided

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: R32
Unit cell:
a: 123.18Å b: 123.18Å c: 73.574Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.206 0.205 0.232
Expression systems:
  • Escherichia coli
  • Not provided