Met CRISPR-Cas kan je gericht stukjes DNA openknippen en veranderen. Promovendus @ThomasSwartjes bedacht een manier om evolutie in te zetten voor de verbetering van de eiwitten die het DNA openknippen. https://t.co/jXEYk5mk9m #CRISPRCas#WUR
Big thanks to the other authors: @peng_shang , Dennis van den Berg, Tim Kรผnne, @Niels_Geijsen , @StanBrouns , John van der Oost, Raymond Staals and Richard Notebaart!
Can DNA oligos be used to prevent DNA cleavage by Cas9?
The short answer is 'yes'. But of course there's more to it, otherwise we wouldn't have published this article about our findings: https://t.co/DU6ANp0mdW
@CRISPRjournal
short thread of our main findings...
In the end, we conclude that guide-complementary DNA oligos can prevent DNA cleavage by Cas9, even without chemical modifications. Both the length of the complementarity and the presence of a PAM in the oligo contribute to strong and robust repression.
I am super excited to share the inaugural paper of the Swarts lab published today @CellCellPress: Short prokaryotic Argonaute systems trigger cell death upon detection of invading DNA.
In this paper, we finally resolve the function and mechanism of short pAgos!๐งต1/11
Other authors:
@peng_shang , Dennis van den Berg , Tim Kรผnne , @Niels_Geijsen , @StanBrouns , John van der Oost, Raymond Staals , and Richard Notebaart.
Happy to share a new preprint about CRISPR-Cas!
We showed that guide-complementary DNA oligos can inhibit Cas9 activity. To see how and why, read the preprint now on @biorxivpreprint :
https://t.co/tKG9Y4hkdr
We have a computational PhD position available (3.5 years) with @BEDutilh on Investigating prokaryotic defence and bacteriophage anti-defence systems. Start on February 2022. DM for more details. I would appreciate it if you could RT through your network.
Today Editas and @idtdna announced publication in @NatureComms of research supporting use of optimized AsCas12a nuclease variant in researching potential of gene-edited cell medicines. Read more: https://t.co/pGlpbSEDgE #geneediting#cellmedicines