US 12,134,797 B2
Hybridization capture methods and compositions
Alexandra Hui Wang, Mountain View, CA (US); Katharine Dilger, Foster City, CA (US); and Rachael Cunningham, Los Altos, CA (US)
Assigned to INTEGRATED DNA TECHNOLOGIES, INC., Coralville, IA (US)
Filed by INTEGRATED DNA TECHNOLOGIES, INC., Coralville, IA (US)
Filed on Mar. 25, 2021, as Appl. No. 17/212,247.
Claims priority of provisional application 63/000,140, filed on Mar. 26, 2020.
Prior Publication US 2022/0090177 A1, Mar. 24, 2022
Int. Cl. C12Q 1/6832 (2018.01)
CPC C12Q 1/6832 (2013.01) 21 Claims
 
1. A method for enriching a population of nucleic acid target sequences in a sample comprising:
(a) providing a sample of nucleic acid molecules comprising a plurality of target nucleic acid sequences and a plurality of off-target nucleic acid sequences;
(b) hybridizing the sample to a panel of nucleic acid probes that are complementary to the plurality of target nucleic acid sequences under hybridization conditions to generate a probe/target complex;
(c) selectively immobilizing the probe/target complex to form an immobilized probe/target complex and adding a melt buffer;
(d) heating the immobilized probe/target complex and the melt buffer to a temperature at or below the aggregate Tm of the probe/target complex for a period of time sufficient to disassociate the off-target nucleic acid sequences; and
(e) washing the immobilized probe/target complex to remove non-hybridized nucleic acid sequences and off-target nucleic acid sequences from the hybridized plurality of target nucleic acid sequences, thereby enriching for the plurality of target nucleic acid sequences in the sample;
wherein step (d) is performed prior to step (e).