Improved LbCas12a variants with altered PAM specificities further broaden the genome targeting range of Cas12a nucleases
Key findings
Generated LbCas12a-RVRR variant with TNTN PAM consensus (including TACV, TTCV, CTCV, CCCV). The D156R mutation in impLbCas12a further increased activity in PAM-dependent manner. Expanded targeting range to ~95% of genome.