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diff --git a/tags/reverse_transcription.mdwn b/tags/reverse_transcription.mdwn
index 14fe42d74381cb539da110d74b0ff685f660fa5e..2f7c1952fa3d007e59584d7e700ca453c7dfd0dd 100644 (file)
--- a/tags/reverse_transcription.mdwn
+++ b/tags/reverse_transcription.mdwn
@@ -22,7 +22,10 @@ _(redaction in progress)_
 ### Terminal desoxynucleotidyl transferase (TdT) activity
 
  - [[Chen & Patton, 2001|biblio/11252793]] reported a TdT activity for MMLV and
-   AMV, with a preference for adding As.
+   AMV, with a preference for adding As.  For MMLV, activity reduced abruptly
+   between 45 and 50 °C.  For AMV, it decreased constantly from 25 to 50 °C.
+   Activity increased with concentration for MMLV.  (High-concentration AMV was
+   not available.)
 
 ### Reverse-transcriptases tolerate terminal mismatches