Junior B. 066e0096d7 Fix screen: compute target MSA once, reuse it, tolerate failures
The full 300-drug screen hammered the public ColabFold MSA server (one
redundant query per drug for the same HDAC2 sequence) -> timeouts, and
the default return_exceptions=False risked aborting the whole run on a
single failure.

Corrected:
- cache_msa(): compute the target MSA ONCE via the server, cache the a3m
  on the Volume; doubles as the weight/CCD warmup.
- build_boltz_yaml(msa_path): protein reuses the cached a3m.
- cofold(msa_path): when given, skip --use_msa_server (no server query).
- screen(): cache MSA once, then cofold.starmap(..., return_exceptions=True)
  so a bad drug is skipped, not fatal.

Turns a fragile ~2.5 hr run into a fast, robust one. Validation pilot
(6 drugs) running; full 300 to run tomorrow.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-25 00:41:51 +02:00

Reverso MVP — Sickle Cell Repurposing Pipeline

A minimum viable drug repurposing pipeline for sickle cell disease: build a disease signature from public transcriptomic data, build drug profiles for ~300 small molecules, and rank them by CMap-style connectivity scoring. Validated by a recovery test — do the two known sickle cell drugs (hydroxyurea, L-glutamine) rank near the top?

See PLAN.md for the full specification, locked decisions, and week-by-week build plan.

Quickstart

# Requires Python >=3.11,<3.13 (see note below)
pip install -e .            # or: pip install -e ".[dev]" for test/lint tooling
pytest                      # run unit tests

Python version note: use Python 3.113.13 (python3.13 -m venv .venv). Python 3.14 is not yet supported by all pipeline dependencies (pydeseq2, cmapPy).

Project layout

data/         raw (downloaded, never edited) / processed / results — gitignored
notebooks/    01..05, run end-to-end in order
src/          identifiers, disease, drugs, scoring, provenance
tests/        scoring unit tests
docs/         recovery_test_report.md, data_sources.md, known_limitations.md

The deliverable

When complete, the artifact to share is three files:

  1. docs/recovery_test_report.md — the 2-page write-up
  2. data/results/ranked_candidates_v1.csv — the ranked drug list
  3. The signature + drug profile files with provenance

Pipeline

Notebook Stage Output
01_setup_identifiers.ipynb Pin disease/gene IDs data/processed/identifiers.json
02_disease_signature.ipynb GEO + differential expression sickle_cell_signature_v1.json
03_drug_profiles.ipynb ChEMBL + LINCS drug_profiles_v1.parquet
04_connectivity_scoring.ipynb CMap scoring ranked_candidates_v1.csv
05_recovery_test.ipynb Validation docs/recovery_test_report.md

Every persisted artifact carries a confidence tier (A/B/C) and provenance. See PLAN.md §3.

Description
Drug Repurposing Tool
Readme 377 KiB
Languages
Python 93.8%
Jupyter Notebook 6.2%