Seq: large plasmids

From: Gabriel Archdeacon (gabriel@elimbiopharm.com)
Date: Fri Sep 29 2000 - 19:44:15 EDT


hello all,
     i am hoping some of you might be able to help me. i am trying to run
sequencing reactions on a double stranded plasmid template. the problem is
that the plasmid is 56 kb. i have a protocol that has been successful for
plasmids up to twenty or twenty-five kb, but nothing for a plasmid this
large.

     i ran some reactions today as follows:

template 2ug
primer 16pmol

     i used a reaction volume of 40ul. the cycle sequencing conditions were
as follows:

          95 for 5 minutes
 

          forty cycles of

          95 30 seconds
          50 20 seconds
          60 4 minutes

followed by a 4 degree hold.

these conditions gave no results.

If anyone thinks they can help, or has any suggestions please let me know.
I thank you all in advance,

-- 
gabriel archdeacon
elim biopharmaceuticals

gabriel@elimbiopharm.com (650)-827-1984 fax (650)-827-1986



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