fcdc06a5a7ad71e42226eff44a00d772c7338d21
kate
  Wed Jun 15 11:48:35 2016 -0700
Additional description of GTEx schema score fields and how they are used in display.  Prompted by inquiry of Jeff Streuwing (NIH program director for GTEx).

diff --git src/hg/lib/gtexGeneBed.as src/hg/lib/gtexGeneBed.as
index 5c1bfcd..4439fce 100644
--- src/hg/lib/gtexGeneBed.as
+++ src/hg/lib/gtexGeneBed.as
@@ -1,14 +1,14 @@
 table gtexGeneBed
 "BED6+ with additional fields for gene and transcript IDs, and expression experiment scores
     (
     string chrom;       "Reference sequence chromosome or scaffold"
     uint   chromStart;  "Start position in chromosome"
     uint   chromEnd;    "End position in chromosome"
     string name;        "Gene symbol"
-    uint   score;      "Score from 0-1000"
+    uint   score;       "Score from 0-1000; derived from total median expression level across all tissues (log-transformed and scaled)"
     char[1] strand;     "+ or - for strand"
     string geneId;      "Ensembl gene ID, referenced in GTEx data tables"
     string geneType;    "GENCODE gene biotype"
-    uint expCount;      "Number of experiment values"
-    float[expCount] expScores; "Comma separated list of experiment scores"
+    uint expCount;      "Number of tissues"
+    float[expCount] expScores; "Comma separated list of per-tissue median expression levels (RPKM)"
     )