c672b62b59fdc40f5774c1210b74d670514e3130
dschmelt
  Wed Jul 3 15:45:30 2019 -0700
Adding cutting info and changing name for the crisprAll track #23514

diff --git src/hg/makeDb/trackDb/crisprAll.html src/hg/makeDb/trackDb/crisprAll.html
index e95bd6f..9bf9b49 100644
--- src/hg/makeDb/trackDb/crisprAll.html
+++ src/hg/makeDb/trackDb/crisprAll.html
@@ -1,25 +1,26 @@
 <h2>Description</h2>
 
 <p>
 This track shows the DNA sequences targetable by CRISPR RNA guides using
 the Cas9 enzyme from <em>S. pyogenes</em> (PAM: NGG) over the entire
 $organism ($db) genome.  CRISPR target sites were annotated with
 predicted specificity (off-target effects) and predicted efficiency
 (on-target cleavage) by various
 algorithms through the tool <a href="http://crispor.tefor.net/"
-target="_blank">CRISPOR</a>.
+target="_blank">CRISPOR</a>. Sp-Cas9 usually cuts double-stranded DNA three or 
+four basepairs 5' of the PAM site.
 </p>
 
 <h2>Display Conventions and Configuration</h2>
 
 <p>
 The track &quot;CRISPR Targets&quot; shows all potential -NGG target sites across the genome.
 The target sequence of the guide is shown with a thick (exon) bar. The PAM
 motif match (NGG) is shown with a thinner bar. Guides
 are colored to reflect both predicted specificity and efficiency. Specificity
 reflects the &quot;uniqueness&quot; of a 20mer sequence in the genome; the less unique a
 sequence is, the more likely it is to cleave other locations of the genome
 (off-target effects). Efficiency is the frequency of cleavage at the target
 site (on-target efficiency).</p>
 
 <p>Shades of gray stand for sites that are hard to target specifically, as the