PTBP1-IRES Complex: Integrative Structural Ensemble and Biophysical Data

35 spin-label pairs provide primary DEER-EPR distance distribution data for the RNA-binding protein PTBP1 in complex with the encephalomyocarditis virus (EMCV) internal ribosome entry site (IRES). The dataset includes multiple structural ensembles generated under different restraint conditions, along with small-angle neutron and X-ray scattering curves. These files support the integrative structure determination of a protein-RNA complex in solution.

Use Cases

• Validating ensemble structure models against primary DEER-EPR distance distributions.
• Benchmarking integrative modeling software (e.g., CYANA, MMMx) using provided restraint files.
• Analyzing protein-RNA conformational dynamics using the multiple provided structural ensembles.
• Comparing structural models against experimental scattering data (SANS and SAXS curves).

Strengths

• Includes primary experimental data for 35 distinct spin-label pairs, enabling detailed distance constraints.
• Provides multiple structural ensembles (main, validation, NNLLSQ-fitted) for comparative analysis.
• Combines data from multiple biophysical techniques (DEER-EPR, SANS, SAXS) for integrative modeling.

Limitations

• Key metadata such as row count, file size, and specific column names are not provided on any platform.
• The exact date of the dataset's last update is unknown, limiting assessment of freshness.
• Structural models are specific to the PTBP1-EMCV IRES complex, limiting generalizability.

Provenance

Source

Georg Dorn, ETH Zurich

Collection Method

Integrative structure determination combining DEER-EPR, SANS, and SAXS data with computational modeling.