NARF: exact selected product and same-gene reference

Selected J3KS48 has 217 residues; reference Q9UHQ1 has 456 residues.

Biopython PairwiseAligner global BLOSUM62, gap open -10, extension -0.5.

Reference interval Selected interval Identical residues
1–128 1–128 128
174–258 129–213 85
383–385 214–216 2
456–456 217–217 1

Reference feature mapping (sequence coverage does not establish retained function):

Reference feature Interval Mapped / length Identical

A shared segment does not establish that a truncated product folds, is expressed, localizes, or catalyzes the full-length reaction.

Inputs are the sibling frozen ProtNLM source and same-gene reference JSON files. Reproduce with UV_NO_SYNC=1 uv run python compare_sequences.py from this directory.