Circularly permuted and PAM-modified Cas9 variants broaden the targeting scope of base editors

May 22, 2019Nature biotechnology

Modified Cas9 proteins expand the targeting range of base editors

AI simplified

Abstract

Six optimized adenine base editors (ABEmax variants) have been engineered to target non-NGG protospacer adjacent motifs.

  • The new base editors use SpCas9 variants that are compatible with a broader range of target sequences.
  • Circularly permuted Cas9 variants were utilized to create four cytosine and four adenine base editors.
  • The editing window of these base editors has been expanded from approximately 4-5 nucleotides to about 8-9 nucleotides.
  • These advancements may lead to reduced byproduct formation during the editing process.
  • The set of engineered base editors is associated with an improved targeting scope for cytosine and adenine base editing.

AI simplified

Full Text

We can’t show the full text here under this license. Use the link below to read it at the source.

what lands in your inbox each week:

  • 📚7 fresh studies
  • 📝plain-language summaries
  • direct links to original studies
  • 🏅top journal indicators
  • 📅weekly delivery
  • 🧘‍♂️always free