› 1q88

X-ray diffraction
2.42Å resolution

Crystal structure of the C-domain of the T.vaginalis Inr binding protein, IBP39 (monoclinic form)

Released:
DOI: 10.2210/pdb1q88/pdb
PDB entry 1q88 coloured by chain, front view.
PDB entry 1q88 coloured by chain, side view.
PDB entry 1q88 coloured by chain, top view.
Source organism: Trichomonas vaginalis
Primary publication:
Structural basis of core promoter recognition in a primitive eukaryote.
Schumacher MA, Lau AO, Johnson PJ
Cell 115 413-24 (2003)
PMID: 14622596

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-188271 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
39 kDa initiator binding protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 221 amino acids
Theoretical weight: 25.73 KDa
Source organism: Trichomonas vaginalis
Expression system: Escherichia coli
UniProt:
  • Canonical: Q95VR4 (Residues: 127-341; Coverage: 63%)
Gene name: IBP39
Sequence domains: Initiator binding protein 39 kDa

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU300
Spacegroup: C2
Unit cell:
a: 99.6Å b: 76.4Å c: 80.3Å
α: 90° β: 93° γ: 90°
R-values:
R R work R free
0.21 0.19 0.232
Expression system: Escherichia coli

Quick links

Citations

5 review citations

The many faces of the helix-turn-helix domain: transcription regulation and beyond.
Aravind et al. (2005)
4 more