US 12,275,951 B2
Engineered guide RNA and uses thereof
Yizhou Dong, Dublin, OH (US); and Bin Li, Columbus, OH (US)
Assigned to Ohio State Innovation Foundation, Columbus, OH (US)
Filed by Ohio State Innovation Foundation, Columbus, OH (US)
Filed on Feb. 6, 2019, as Appl. No. 16/269,021.
Claims priority of provisional application 62/626,827, filed on Feb. 6, 2018.
Prior Publication US 2019/0241911 A1, Aug. 8, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. C12N 15/90 (2006.01); A61K 31/7105 (2006.01); A61K 31/712 (2006.01); A61K 31/7125 (2006.01); C12N 9/22 (2006.01); C12N 15/85 (2006.01)
CPC C12N 15/907 (2013.01) [A61K 31/7105 (2013.01); A61K 31/712 (2013.01); A61K 31/7125 (2013.01); C12N 9/22 (2013.01); C12N 15/85 (2013.01); C12N 2310/122 (2013.01); C12N 2310/20 (2017.05); C12N 2310/315 (2013.01); C12N 2310/3235 (2013.01); C12N 2310/333 (2013.01); C12N 2310/3341 (2013.01); C12N 2310/335 (2013.01)] 4 Claims
 
1. A genome editing system comprising:
a) a guide RNA comprising a guide segment that hybridizes with a target sequence of a DNA molecule in a eukaryotic cell to form an RNA/DNA hybrid, and wherein the guide RNA forms a stem loop 5′ of the RNA/DNA hybrid, and
b) an mRNA encoding a Cpf1 protein;
wherein the guide RNA comprises from 15 to 50 additional nucleotides 5′ of the stem loop, wherein the 15 to 50 additional nucleotides 5′ of the stem loop comprises SEQ ID NO: 47, SEQ ID NO: 49, SEQ ID NO: 50, SEQ ID NO: 52, SEQ ID NO: 53, SEQ ID NO: 55, SEQ ID NO: 56, SEQ ID NO: 57, SEQ ID NO: 58, SEQ ID NO: 59, SEQ ID NO: 60, or SEQ ID NO: 61, wherein the guide RNA comprises at least three chemically modified nucleotides 5′ of the stem loop, wherein the at least three chemically modified nucleotides 5′ of the stem loop are a chemically modified ribose, and wherein the additional nucleotides 5′ of the stem loop form a heterologous sequence;
wherein the guide RNA comprises five chemically modified nucleotides at the 3′ end of the guide segment, and wherein the five chemically modified nucleotides at the 3′ end of the guide segment are a chemically modified ribose;
wherein the guide RNA comprises a sequence selected from SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO: 4, SEQ ID NO:6, SEQ ID NO:8, SEQ ID NO:9, SEQ ID NO:11, SEQ ID NO: 12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, SEQ ID NO:16, SEQ ID NO:34, SEQ ID NO: 35, SEQ ID NO:36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO: 40, SEQ ID NO: 41, SEQ ID NO: 42, SEQ ID NO: 43, SEQ ID NO: 44, and SEQ ID NO: 45; and
wherein the chemically modified ribose comprises 2′-Fluoro (2′F).