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A structured model and likelihood approach to estimate yeast prion propagon replication rates and their asymmetric transmission

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Prion Aggregate (Propagon) Replication Rates & Asymmetric Transmission

Code for estimation of replication rate and asymmetric distribution using experimental aggregate count publication: PLOS Computational Biology Article

Prion aggregates, cell division dynamics, and transmission of aggregates.
Prion Aggregate Replication Dynamics.

Included:

  • propagon_data_raw: Folder containing experimental aggregate count datasets for six prion variants.
  • propagon_data_filtered_iqr: Folder containing aggregate counts data filtered for outliers.
  • propagon_data_down_sampled: Folder containing aggregate counts data downsampled in time.
  • Example_Simulate_Data.m: The script shows how to generate simulated data using the functions in the /code/ folder.
  • Example_Parameter_Estimation.m: The script shows how to apply the adaptive Metropolis algorithm to simulated and experimental data.

Mathematical Modeling and Replication Rate Estimation

  1. Prion aggregate count experiments.
    Prion Aggregate Count Experiments.
  2. Structured model, aggregate distribution, and cell division.
    Diagram of Structured Model of Prion Aggregate Distribution.
  3. Prion aggregate counts for six prion variants.
    Prion Aggregate Count for Six Prion Variants.
  4. Adaptive Metropolis estimates of prion aggregate replication rates.
    Prion replication rates estimation
  5. Adaptive Metropolis estimates of prion aggretate transmission bias.
    Prion replication rates estimation

  6. Note: The appearance of increasing variance over time is a visual artifact from viewing iterations on a logarithmic scale.