79073841f4c544426db6c1f805af94844cabef23
markd
  Thu Sep 24 20:46:08 2026 -0700
Say why the ProCapNet contribution scores are hg38 only. refs #35528

The page gave the reason as "that is the assembly they were computed against",
which restates the fact rather than explaining it. The scores are computed at
MANE Select transcription start sites and MANE is not defined for T2T-CHM13.

diff --git src/hg/makeDb/trackDb/human/proCapNet.html src/hg/makeDb/trackDb/human/proCapNet.html
index b61f4e2cb59..d6a142ad6e7 100644
--- src/hg/makeDb/trackDb/human/proCapNet.html
+++ src/hg/makeDb/trackDb/human/proCapNet.html
@@ -17,32 +17,32 @@
 <li><b>Predicted PRO-cap</b>: what the model expects the PRO-cap signal to be,
 at every base of the genome, on both strands. The sequence rules that govern
 where initiation happens are largely shared between cell types, so any one model
 highlights sequence capable of driving initiation, including at regions where no
 PRO-cap experiment has been done.</li>
 <li><b>Sequence contribution scores</b>: how much each individual base pushed
 the model's prediction up or down. Bases inside a functional element such as a
 TATA box or an initiator carry high scores, and the pattern of high-scoring
 bases often spells out the recognition sequence of a promoter-associated
 transcription factor. These are computed only around MANE Select transcription
 start sites.</li>
 </ul>
 
 <p>
 The predictions are available on GRCh38/hg38 and T2T-CHM13/hs1. The contribution
-scores are available on GRCh38/hg38 only, since that is the assembly they were
-computed against.
+scores are available on GRCh38/hg38 only, because they are computed at MANE
+Select transcription start sites and MANE is not defined for T2T-CHM13.
 </p>
 
 <p>
 Predictions are not measurements: they say what the sequence looks capable of,
 not what a given cell is doing. The matching experimental data is in the PRO-cap
 track, available on GRCh38/hg38.
 </p>
 
 <h2>Display Conventions and Configuration</h2>
 
 <p>
 Cell lines are listed in the table on this page, one row each, with a checkbox
 per data type. Use the <b>Sample class</b> facet to narrow the list, and the
 <b>Group tracks by</b> buttons to order the browser by sample or by data type.
 </p>