Enhanced in vitro recombinational cloning of using ribosomal proteins
First Claim
1. A method for cloning or subcloning one or more desired nucleic acid molecules comprising(a) forming a mixture by combining in vitro (i) one or more first nucleic acid molecules comprising one or more desired nucleic acid segments flanked by at least two recombination sites, wherein said recombination sites do not recombine with each other;
- (ii) one or more second nucleic acid molecules each comprising at least two recombination sites, wherein said recombination sites do not recombine with each other;
(iii) at least one recombination protein; and
(iv) at least one ribosomal protein that is present in an amount sufficient to enhance recombinational cloning; and
(b) incubating said mixture under conditions sufficient to transfer one or more of said desired segments into one or more of said second nucleic acid molecules, thereby producing one or more desired third nucleic acid molecules.
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Accused Products
Abstract
The present invention relates generally to compositions and methods for enhancing recombinational cloning of nucleic acid molecules. In particular, the invention relates to compositions comprising one or more ribosomal proteins and one or more additional protein components required for recombinational cloning. More particularly, the invention relates to such compositions wherein the ribosomal proteins are one or more E. coli ribosomal proteins, still more particularly wherein the ribosomal proteins are selected from the group of E. coli ribosomal proteins consisting of S10, S14, S15, S16, S17, S18, S19, S20, S21, L20, L21, and L23 through L34, and most particularly S20, L27, and S15. The invention also relates to the use of these compositions in methods for recombinational cloning of nucleic acids, in vitro and in vivo, to provide chimeric DNA molecules that have particular characteristics and/or DNA segments. The invention also relates to isolated nucleic acid molecules produced by the methods of the invention, to vectors comprising such nucleic acid molecules, and to host cells comprising such nucleic acid molecules and vectors.
117 Citations
74 Claims
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1. A method for cloning or subcloning one or more desired nucleic acid molecules comprising
(a) forming a mixture by combining in vitro (i) one or more first nucleic acid molecules comprising one or more desired nucleic acid segments flanked by at least two recombination sites, wherein said recombination sites do not recombine with each other; -
(ii) one or more second nucleic acid molecules each comprising at least two recombination sites, wherein said recombination sites do not recombine with each other;
(iii) at least one recombination protein; and
(iv) at least one ribosomal protein that is present in an amount sufficient to enhance recombinational cloning; and
(b) incubating said mixture under conditions sufficient to transfer one or more of said desired segments into one or more of said second nucleic acid molecules, thereby producing one or more desired third nucleic acid molecules. - View Dependent Claims (2, 3, 4, 5, 8, 9, 10, 11, 12, 13, 14, 16, 17, 51, 55, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
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6. A method for cloning or subcloning desired nucleic acid molecules comprising:
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(a) forming a mixture by combining in vitro (i) one or more first nucleic acid molecules comprising one or more nucleic acid segments flanked by two or more recombination sites, wherein said recombination sites do not recombine with each other;
(ii) two or more different second nucleic acid molecules each comprising two or more recombination sites, wherein said recombination sites do not recombine with each other;
(iii) at least one recombination protein; and
(iv) at least one ribosomal protein that is present in an amount sufficient to enhance recombinational cloning; and
(b) incubating said mixture under conditions sufficient to transfer one or more of said desired segments into said different second nucleic acid molecules, thereby producing two or more different third nucleic acid molecules. - View Dependent Claims (7, 15, 52, 56)
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18. A method for enhancement of recombinational cloning of one or more desired nucleic acid molecules comprising:
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(a) forming a mixture by mixing in vitro one or more desired first nucleic acid molecules with one or more second nucleic acid molecules and with at least one ribosomal protein that is present in an amount sufficient to enhance recombinational cloning and an effective amount of at least one recombination protein; and
(b) incubating said mixture under conditions sufficient to transfer said one or more desired first nucleic acid molecules into one or more of said second nucleic acid molecules. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 53, 57)
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- 27. A method for enhancement of recombinational cloning, comprising contacting at least a first nucleic acid molecule and at least a second nucleic acid molecule, each comprising at least one recombination site, in vitro with one or more ribosomal proteins that are present in an amount sufficient to enhance recombinational cloning and with one or more recombination proteins to form a mixture, and incubating said mixture under conditions favoring the production of at least one product nucleic acid molecule.
Specification