b9328bcc8d11dacf366183711dd8a481da74664b
max
  Tue Jun 7 01:42:07 2022 -0700
tiny changes to constraint super track docs page after email exchange with Lou, refs #29043

diff --git src/hg/makeDb/trackDb/human/constraintSuper.html src/hg/makeDb/trackDb/human/constraintSuper.html
index bfdb885..50d2270 100644
--- src/hg/makeDb/trackDb/human/constraintSuper.html
+++ src/hg/makeDb/trackDb/human/constraintSuper.html
@@ -1,38 +1,42 @@
 <h2>Description</h2>
 
 <p>
 The "Constraint scores" container track includes several subtracks showing the results of
 constraint prediction algorithms. These try to find regions of negative
 selection, where variations likely have functional impact. The algorithms do
 not use multi-species alignments to derive evolutionary constraint, but use
 primarily human variation, usually from variants collected by gnomAD (see the
 gnomAD V2 or V3 tracks on hg19 and hg38) or TOPMED (contained in our dbSNP
-tracks and available as a filter). Another constraint score, gnomAD
+tracks and available as a filter). 
+</p>
+
+<p>Note that another important constraint score, gnomAD
 constraint, is not part of this container but can be found in the hg38 gnomAD
 track.
+</p>
 
-The algorithms covered here are:
+The algorithms included in this track are:
 <ol>
     <li><b><a href="https://github.com/astrazeneca-cgr-publications/jarvis" target="_blank">
     JARVIS - "Junk" Annotation genome-wide Residual Variation Intolerance Score</a></b>: 
-    First scan the entire genome with a
+    This algorithm first scans the entire genome with a
     sliding-window approach (using a 1-nucleotide step), recording the number of
     all TOPMED variants and common variants, irrespective of their predicted effect,
     within each window, to eventually calculate a single-nucleotide resolution
-    genome-wide residual variation intolerance score (gwRVIS). Then combine
-    gwRVIS, primary genomic sequence context, and additional genomic
+    genome-wide residual variation intolerance score (gwRVIS). In a second step, it combines
+    this gwRVIS score, primary genomic sequence context, and additional genomic
     annotations with a multi-module deep learning framework to infer
     pathogenicity of noncoding regions that still remains naive to existing
     phylogenetic conservation metrics. The higher the score, the more deleterious
     is the prediction.
 
     <li><b><a href="https://www.cardiodb.org/hmc/" target="_blank">
     HMC - Homologous Missense Constraint</a></b>:
     Homologous Missense Constraint (HMC) is a amino acid level measure
     of genetic intolerance of missense variants within human populations.
     For all assessable amino-acid positions in Pfam domains, the number of
     missense substitutions directly observed in gnomAD (Observed) was counted
     and compared to the expected value under a neutral evolution
     model (Expected). The upper limit of a 95% confidence interval for the
     Observed/Expected ratio is defined as the HMC score. Missense variants
     disrupting the amino-acid positions with HMC&lt;0.8 are predicted to be
@@ -40,56 +44,58 @@
    
     <li><b><a href="http://biosig.unimelb.edu.au/mtr-viewer/" target="_blank">
     MTR - Missense Tolerance Ratio</a> (hg19 only)</b>:
     Missense Tolerance Ratio (MTR) scores aim to quantify the amount of purifying 
     selection acting specifically on missense variants in a given window of 
     protein-coding sequence. It is estimated across sliding windows of 31 codons 
     (default) and uses observed standing variation data from the WES component of 
     gnomAD / the Exome Aggregation Consortium Database (ExAC), version 2.0. Scores
     were computed using Ensembl v95 release 
 </ol>
 
 <h2>Display Conventions and Configuration</h2>
 
 <h3>JARVIS</h3>
 <p>
-JARVIS scores are the scores as a signal ("wiggle") track, with one score per genome position.
+JARVIS scores are shown as a signal ("wiggle") track, with one score per genome position.
 Mousing over the bars displays the exact values. The scores were downloaded and converted to a single bigWig file.
 See <a href="https://github.com/ucscGenomeBrowser/kent/blob/master/src/hg/makeDb/doc/hg19.txt" target=_blank>hg19 makeDoc</a> and
 <a href="https://github.com/ucscGenomeBrowser/kent/blob/master/src/hg/makeDb/doc/hg38/jarvis.txt" target=_blank>hg38 makeDoc</a>.</p>
 
 <h3>HMC</h3>
 <p>
 HMC scores are displayed as a signal ("wiggle") track, with one score per genome position.
 Mousing over the bars displays the exact values. The highly-constrained cutoff
 of 0.8 is indicated with a line.</p>
 <p>
 The HMC scores were downloaded and converted to .bedGraph files with a
 custom Python script. The bedGraph files were then converted to bigWig files,
 as documented in our <a
 href="https://github.com/ucscGenomeBrowser/kent/blob/master/src/hg/makeDb/doc/hg19.txt"
 target=_blank>makeDoc</a> hg19 build log.</p>
 
 <h3>MTR</h3>
 <p>
 MTR data can be found on two tracks, <b>MTR All data</b> and <b>MTR Scores</b>. In the
 <b>MTR Scores</b> track the data has been converted into 4 separate signal tracks
-representing each base pair mutation, with the lowest possible score represented when
-multiple transcripts overlap. A horizontal line is drawn on the 0.8 score line
+representing each base pair mutation, with the lowest possible score shown when
+multiple transcripts overlap at a position. Overlaps can happen since this score
+is derived from transcripts and multiple transcripts can overlap. 
+A horizontal line is drawn on the 0.8 score line
 to roughly represent the 25th percentile, meaning the items below may be of particular
 interest. It is recommended that the data be explored using
-this version of the track, as it condenses the information substatially while
+this version of the track, as it condenses the information substantially while
 retaining the magnitude of the data.</p>
 
 <p>Any specific point mutations of interest can then be researched in the <b>
 MTR All data</b> track. This track contains all of the information from
 <a href="http://biosig.unimelb.edu.au/mtr-viewer/downloads" target="_blank">
 MTRV2</a> including more than 3 possible scores per base when transcripts overlap.
 A mouse-over on this track shows the ref and alt allele, as well as the MTR score
 and the MTR score percentile. Filters are available for MTR score, False Discovery Rate
 (FDR), MTR percentile, and variant consequence. By default, only items in the bottom
 25 percentile are shown. Items in the track are colored according
 to their MTR percentile:</p>
 <ul>
 <li><b><font color=green>Green items</font></b> MTR percentiles over 75
 <li><b><font color=black>Black items</font></b> MTR percentiles between 25 and 75
 <li><b><font color=red>Red items</font></b> MTR percentiles below 25
@@ -123,32 +129,33 @@
 target=_blank>hg38 makeDoc</a></p>
 <h3>MTR</h3> 
 <p>
 <a href="http://biosig.unimelb.edu.au/mtr-viewer/downloads" target="_blank">V2
 file</a> was downloaded and columns were reshuffled as well as itemRgb added for the
 <b>MTR All data</b> track. For the <b>MTR Scores</b> track the file was parsed with a python
 script to pull out the highest possible MTR score for each of the 3 possible mutations
 at each base pair and 4 tracks built out of these values representing each mutation.</p>
 <p>
 See the <a href="https://github.com/ucscGenomeBrowser/kent/blob/master/src/hg
 /makeDb/doc/hg19.txt" target=_blank>hg19 makeDoc</a> entry on MTR for more info.</p>
 
 <h2>Credits</h2>
 
 <p>
-Thanks to Jean-Madeleine Desainteagathe (APHP Paris, France) for suggesting the Jarvis, MTR, HMC tracks. Thanks to Xialei Zhang for providing the HMC data file and to Dimitrios Vitsios for helping clean up the hg38 Jarvis files. 
-</p>
+Thanks to Jean-Madeleine Desainteagathe (APHP Paris, France) for suggesting the
+Jarvis, MTR, HMC tracks. Thanks to Xialei Zhang for providing the HMC data file
+and to Dimitrios Vitsios for helping clean up the hg38 Jarvis files.  </p>
 
 <h2>References</h2>
 
 <p>
 Vitsios D, Dhindsa RS, Middleton L, Gussow AB, Petrovski S.
 <a href="https://www.ncbi.nlm.nih.gov/pubmed/33686085" target="_blank">
     Prioritizing non-coding regions based on human genomic constraint and sequence context with deep
     learning</a>.
 <em>Nat Commun</em>. 2021 Mar 8;12(1):1504.
 PMID: <a href="https://www.ncbi.nlm.nih.gov/pubmed/33686085" target="_blank">33686085</a>; PMC: <a
     href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7940646/" target="_blank">PMC7940646</a>
 </p>
 
 <p>
 Xiaolei Zhang, Pantazis I. Theotokis, Nicholas Li, the SHaRe Investigators, Caroline F. Wright, Kaitlin E. Samocha, Nicola Whiffin, James S. Ware