IP Library › Granted Patent US 12,195,732
Granted Patent B2
US 12,195,732 · App. 16/563,274 · Granted Jan 14, 2025

Direct cloning

Inventors: Youming Zhang (Heidelberg, DE); Jun Fu (Dresden, DE); Adrian Francis Stewart (Dresden, DE)
Assignee: Gene Bridges GMBH
C12N15/1096C12N9/22C12N15/10C12N15/1093C12N15/902C12Y301/16
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Quick Facts
Patent No.
US 12,195,732
App. No.
16/563,274
Granted
Jan 14, 2025
Kind
B2
Abstract

A method for performing homologous recombination between at least a first nucleic acid molecule and a second nucleic acid molecule which share at least one region of sequence homology. A method for improving the efficiency of homologous recombination.

Claims (11)

1. A host cell comprising one or more nucleic acids encoding a 5′ to 3′ exonuclease and means for its expression, one or more nucleic acids encoding RecT and means for its expression, and one or more nucleic acids encoding Red gamma and means for its expression,

wherein the 5′ to 3′ exonuclease is an N-terminally extended RecE expressed from heterologous DNA that comprises or consists of amino acids 1-866 of SEQ ID NO:1, or a variant of this sequence having at least 95% sequence identity to SEQ ID NO:1 over the entire length of the 866 amino acid sequence,

said host cell further comprising one or more nucleic acids encoding Red alpha and Red beta and means for their expression,

wherein the expression of RecE, RecT, Red alpha, and/or Red beta is controlled by different inducible promoters that may be independently temporally expressed.

2. The host cell according to claim 1 , further comprising a nucleic acid sequence encoding RecA.

3. The host cell according to claim 1 , wherein expression of the 5′ to 3′ exonuclease is driven by an arabinose inducible promoter or a rhamnose inducible promoter.

4. A kit comprising the host cell according to claim 1 and one or more linearized cloning vectors.

5. The kit according to claim 4 , wherein the kit additionally comprises at least one single stranded oligonucleotide.

6. The kit according to claim 5 , wherein the at least one single stranded oligonucleotide comprises or consists of DNA.

7. The kit according to claim 5 , wherein the at least one single stranded oligonucleotide is 10-100 nucleotides in length.

8. The kit according to claim 7 , wherein the at least one single stranded oligonucleotide is about 40 nucleotides in length.

Priority Claims (1)
GB 1009732 · Jun 10, 2010 · national
Continuity (2)
Continuation 13806086
Related Publication 20200283759A1 · Sep 10, 2020
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