Constructs and uses thereof for efficient and specific genome editing
Embodiments disclosed herein include novel nucleic acid-guided nucleases, novel guide nucleic acids, and novel targetable nuclease systems, and methods of use. In some embodiments, engineered non-naturally occurring nucleic acid-guided nucleases, can be used with known guide nucleic acids in a targetable nuclease system. In certain embodiments, targetable nuclease systems can be used to edit targeted genomes of humans and other species. In some embodiments, methods include, but are not limited to, recursive genetic engineering and trackable genetic engineering methods.
1 . A composition comprising
(i) an engineered nucleic acid-guided nuclease comprising an engineered nuclease polypeptide comprising an amino acid sequence having at least 90% sequence identity to any one of SEQ ID NO: 144, 153, and 229, or a polynucleotide encoding an amino acid sequence having at least 90% sequence identity to any one of SEQ ID NO: 144, 153, and 229; and
(ii) a compatible guide nucleic acid, wherein the guide nucleic acid is capable of forming a functional complex with the nucleic acid-guided nuclease, thereby directing the nuclease to a target sequence in a human cell.
2 . The composition of claim 1 wherein the sequence identity is at least 95%.
3 . The composition of claim 1 wherein the sequence identity is 100%.
4 . The composition of claim 1 wherein the guide nucleic acid is a split guide nucleic acid.
5 . The composition of claim 1 wherein the guide nucleic acid comprises any one of SEQ ID NO: 291-325, or a portion thereof.
6 . The composition of claim 1 , wherein the nucleic acid-guided nuclease complex comprises an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 144.
7 . The composition of claim 1 , wherein the nucleic acid-guided nuclease complex comprises an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 153.
8 . The composition of claim 1 , wherein the guide nucleic acid comprises one or more chemical modifications.
9 . A method of creating a strand break at or near a target sequence in a target polynucleotide comprising contacting the target polynucleotide with a targetable nucleic acid-guided nuclease complex, said complex comprising:
(i) an engineered nucleic acid-guided nuclease comprising an engineered nuclease polypeptide comprising an amino acid sequence having at least 90% sequence identity to any one of SEQ ID NO: 144, 153, and 229; and
(ii) a compatible guide nucleic acid, wherein the nucleic acid-guided nuclease is complexed with the guide nucleic acid to form a nucleic acid-guided nuclease complex, wherein the compatible guide nucleic acid of the complex targets the target sequence, and allowing the targetable nucleic acid-guided nuclease complex to create the strand break.
10 . The method of claim 9 wherein the nucleic acid-guided nuclease complex comprises an engineered nuclease polypeptide comprising an amino acid sequence having at least 90% sequence identity to any one of SEQ ID NO: 144 and 153.
11 . The method of claim 9 wherein the nucleic acid-guided nuclease complex comprises an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 153.
12 . The method of claim 9 wherein the sequence identity is at least 95%.
13 . The method of claim 9 wherein the sequence identity is 100%.
14 . The method of claim 9 wherein the guide nucleic acid is a split guide nucleic acid.
15 . The method of claim 9 wherein the guide nucleic acid comprises any one of SEQ ID NO: 291-325, or a portion thereof.
16 . The method of claim 9 wherein the target polynucleotide is in a cellular genome.
17 . The method of claim 16 wherein the editing template comprises a transgene.
18 . The method of claim 9 further comprising providing an editing template to be inserted in the target sequence.
19 . The method of claim 9 wherein the target polynucleotide is a safe harbor site.
20 . A method of modifying expression of a target polynucleotide comprising contacting the target polynucleotide with a targetable nucleic acid-guided nuclease complex, said complex comprising:
(i) an engineered nucleic acid-guided nuclease comprising an engineered nuclease polypeptide comprising an amino acid sequence having at least 90% sequence identity to any one of SEQ ID NO: 144, 153, and 229; and
(ii) a compatible guide nucleic acid, wherein the nucleic acid-guided nuclease is complexed with the guide nucleic acid to form a nucleic acid-guided nuclease complex, wherein the compatible guide nucleic acid of the complex targets the target sequence, and allowing the targetable nucleic acid-guided nuclease complex to bind to a target sequence within the target polynucleotide such that the binding can lead to increased or decreased expression of the target polynucleotide.