Base Editors

Base editors chemically convert individual DNA nucleotides without creating double-strand breaks or requiring template DNA. They function by coupling a catalytically impaired nuclease to a deaminase enzyme that modifies specific bases within a narrow editing window. Cytosine base editors create C-to-T changes while adenine base editors produce A-to-G conversions.

NameTypeConversionWindow
ABE C-term Adenine Base Editor A-to-G Positions 4-7
ABE N-term Adenine Base Editor A-to-G Positions 4-7
ABE7.10 Adenine Base Editor A-to-G Positions 4-7
ABE8e Adenine Base Editor A-to-G Positions 4-9 (wider)
AncBE4max Cytosine Base Editor C-to-T Positions 5-6 (narrower)
BE3 Cytosine Base Editor C-to-T Positions 4-8
BE3.9max C-term Cytosine Base Editor C-to-T Positions 4-8
BE3.9max N-term Cytosine Base Editor C-to-T Positions 4-8
BE4max Cytosine Base Editor C-to-T Positions 4-8
CBE C-term Cytosine Base Editor C-to-T Positions 4-8
CBE N-term Cytosine Base Editor C-to-T Positions 4-8
CGBE C-to-G Base Editor C-to-G Positions 4-8
CjABE8e Adenine Base Editor A-to-G 3-11
Nme2ABE8e Adenine Base Editor A-to-G 4-10
SaABE8e Adenine Base Editor A-to-G 4-9
SaABE8e-V106W Adenine Base Editor A-to-G 4-9
SaBE3.9max C-term Cytosine Base Editor C-to-T Positions 4-8
SaBE3.9max-KKH C-term Cytosine Base Editor C-to-T Positions 4-8
SaBE3.9max N-term Cytosine Base Editor C-to-T Positions 4-8
SaCBE C-term Cytosine Base Editor C-to-T Positions 4-8
SaCBE-KKH C-term Cytosine Base Editor C-to-T Positions 4-8
SaCBE N-term Cytosine Base Editor C-to-T Positions 4-8
SaKKH-ABE8e Adenine Base Editor A-to-G 4-9
SauriABE8e Adenine Base Editor A-to-G 4-9
Target-AID Adenine Base Editor A-to-G (via C-to-T intermediate) Positions 2-4 (narrower)