Method of nucleic acid cassette assembly
First Claim
1. A method for assembling a nucleic acid construct comprising:
- (a) generating a plurality of double-stranded nucleic acid cassettes from chemically synthesized oligonucleotides or copies thereof,wherein the cassettes comprise adjacent regions of a nucleic acid construct to be assembled and wherein each of the cassettes overlap with one or more other cassette(s) by at least 50 nucleotides and is between about 4 kb and 7 kb in length, not including the overlaps; and
(b) simultaneously assembling the plurality of nucleic acid cassettes in vitro in a chew back and repair step utilizing;
an enzyme having 3′
or 5′
exonuclease activity,a DNA polymerase,polyethylene glycol (PEG) or a single-stranded binding protein, anda ligasethereby assembling the nucleic acid construct.
11 Assignments
0 Petitions
Accused Products
Abstract
Methods are provided for constructing a synthetic genome, comprising generating and assembling nucleic acid cassettes comprising portions of the genome, wherein at least one of the nucleic acid cassettes is constructed from nucleic acid components that have been chemically synthesized, or from copies of the chemically synthesized nucleic acid components. In one embodiment, the entire synthetic genome is constructed from nucleic acid components that have been chemically synthesized, or from copies of the chemically synthesized nucleic acid components. Rational methods may be used to design the synthetic genome (e.g., to establish a minimal genome and/or to optimize the function of genes within a genome, such as by mutating or rearranging the order of the genes). Synthetic genomes of the invention may be introduced into vesicles (e.g., bacterial cells from which part or all of the resident genome has been removed, or synthetic vesicles) to generate synthetic cells. Synthetic genomes or synthetic cells may be used for a variety of purposes, including the generation of synthetic fuels, such as hydrogen or ethanol.
17 Citations
21 Claims
-
1. A method for assembling a nucleic acid construct comprising:
-
(a) generating a plurality of double-stranded nucleic acid cassettes from chemically synthesized oligonucleotides or copies thereof, wherein the cassettes comprise adjacent regions of a nucleic acid construct to be assembled and wherein each of the cassettes overlap with one or more other cassette(s) by at least 50 nucleotides and is between about 4 kb and 7 kb in length, not including the overlaps; and (b) simultaneously assembling the plurality of nucleic acid cassettes in vitro in a chew back and repair step utilizing; an enzyme having 3′
or 5′
exonuclease activity,a DNA polymerase, polyethylene glycol (PEG) or a single-stranded binding protein, and a ligase thereby assembling the nucleic acid construct. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification