Jump to content

  • Log in with Facebook Log in with Twitter Log in with Windows Live Log In with Google      Sign In   
  • Create Account

Submit your paper to J Biol Methods today!
- - - - -

Manipulation of target DNA fragments

  • Please log in to reply
1 reply to this topic

#1 Heinz89



  • Members
  • Pip
  • 1 posts

Posted 13 November 2013 - 08:51 AM

Hello, I have an experiment were I am capturing a target (single stranded DNA) and need to adapt/remove it's 3' overhang, so that the targets 3' now will match the 5' region of the probe (See picture). Additionally, the target might also contain a mismatch of interest (See picture), which should be conserved, so I believe DNA polymerases with 3'->5' proof reading is not an option in this experiment.  


I have been considering the Mung bean nuclease which is capable of removing single stranded DNA from the 3' and 5' ends and then afterwards add DNA polymerase (without proof reading) to fill in the strand. However, I am uncertain whether the digested product from the Mung bean digestion can be elongated by a DNA polymerase afterwards so that the targets 3' area matches the probes 5'.



I hope you can answer my question or alternatively suggest other enzymes or approaches to achieve my goal


Best Regards


Attached Thumbnails

  • Inquiry.png

Edited by Heinz89, 13 November 2013 - 08:54 AM.

#2 Trof


    Brain on a stick

  • Global Moderators
  • PipPipPipPipPipPipPipPipPipPip
  • 1,359 posts

Posted 16 November 2013 - 02:51 AM

AFAIK for the elongation of the 3' end, you need only the OH group intact. MBN nuclease generates ligable fragments, that would mean intack OH group on 3' end and phospho group on 5'.

Our country has a serious deficiency in lighthouses. I assume the main reason is that we have no sea.

I never trust anything that can't be doubted.

'Normal' is a dryer setting. - Elizabeth Moon

Home - About - Terms of Service - Privacy - Contact Us

©1999-2013 Protocol Online, All rights reserved.