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| Species/Variant of Cas9 | PAM Sequence |
|---|---|
| Streptococcus pyogenes (SP); SpCas9 | NGG |
| SpCas9 D1135E variant | NGG (reduced NAG binding) |
| SpCas9 VRER variant | NGCG |
| SpCas9 EQR variant | NGAG |
| SpCas9 VQR variant | NGAN or NGNG |
| Staphylococcus aureus (SA); SaCas9 | NNGRRT or NNGRR(N) |
| Neisseria meningitidis (NM) | NNNNGATT |
| Streptococcus thermophilus (ST) | NNAGAAW |
| Treponema denticola (TD) | NAAAAC |
| Additional Cas9s from various species | PAM sequence may not be characterized |