HYBRIDISATION COLUMN FOR NUCLEIC ACID ENRICHMENT
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Abstract
The invention relates to the rapid enrichment of nucleic acid molecules of interest from complex mixtures of nucleic acids for the purpose of sequencing genes and variants, e.g. for clinical uses as well as other applications. A hybridisation column comprising an inner channel, wherein a portion of said channel is filled completely with a porous solid support comprising (a) a plurality of interconnected, micron-sized voids that permit a fluid to flow between them and the remainder of the channel, and (b) a plurality of hybridisation probes, which are bound to the surfaces of the solid support forming the voids is disclosed.
6 Citations
82 Claims
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1-56. -56. (canceled)
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57. A hybridisation column comprising an inner channel, wherein a portion of said channel is filled with a porous solid support comprising:
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(i) a plurality of interconnected, micron-sized voids that permit a fluid to flow between them and the remainder of the channel, and (ii) a plurality of hybridisation probes, which are bound to the surfaces of the solid support forming the voids, wherein the pore structure of the solid support is homogeneous in all dimensions, wherein the solid support fills the entire cross-section of the channel. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 80, 81, 82)
wherein the pore structure of the solid support is homogeneous in all dimensions, wherein the solid support fills the entire cross-section of the channel.
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80. A method of preparing the hybridisation column of claim 57, wherein the method comprises:
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(i) providing a column comprising an inner channel, and (ii) filling the entire cross-section of the channel with a plurality of microbeads having about the same diameter and having linked to their surfaces a plurality of hybridisation probes, wherein the microbeads form a porous solid support.
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81. The method of claim 80, wherein the diameter is 0.5 to 500 μ
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82. A kit for preparing the hybridisation columns of claim 57, wherein the kit comprises (i) one or more column(s) comprising a inner channel and (i) a container comprising a plurality of microbeads having about the same diameter and having linked to their surfaces a plurality of hybridisation probes.
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72. A method for enriching nucleic acid molecules from a complex mixture of nucleic acids, wherein said method comprises:
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(i) providing a porous solid support comprising (a) a plurality of interconnected, micron-sized voids that permit a fluid to flow between them, and (b) a plurality of hybridisation probes, which are bound to the surfaces of the solid support forming the voids, (ii) driving the mixture of nucleic acids through the solid support thereby allowing nucleic acid molecules comprising nucleic acid sequences complementary to the nucleic acid sequences of the hybridisation probes to hybridise to the probes, wherein hybridisation is allowed to proceed for less than 10 hours, (iii) washing the solid support to remove any nucleic acids that are not hybridised to the probes, and (iv) eluting the nucleic acid molecules bound to the hybridisation probes from the solid support. - View Dependent Claims (73, 74, 75, 76, 77, 78)
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79. The method of 72, wherein the mixture is prepared by obtaining a larger nucleic acid molecule, fragmenting it into nucleic acid fragments, and joining the fragments to adaptor molecules.
Specification