Chip-based speciation and phenotypic characterization of microorganisms
First Claim
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1. A method for assigning an organism to a group or species by detecting at least one polymorphism at a position of interrogation in a target nucleic acid sequence, comprising:
- (a) providing a plurality of different probes complementary to one or more reference nucleic acid sequences, said probes immobilized in an array on a solid surface, wherein said probes differ from each other at the position of interrogation;
(b) hybridizing the target nucleic acid sequence to said probes in the array;
(c) hybridizing the reference nucleic acid sequence to said probes in a separate, identical array;
(d) comparing the hybridization pattern of step (b) to the hybridization pattern of step (c); and
(e) detecting at least one polymorphism at the position of interrogation, wherein said detecting allows assignment of an organism to a group or species.
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Abstract
This invention provides oligonucleotide based arrays and methods for speciating and phenotyping organisms, for example, using oligonucleotide sequences based on the Mycobacterium tuberculosis rpoB gene. The groups or species to which an organism belongs may be determined by comparing hybridization patterns of target nucleic acid from the organism to hybridization patterns in a database.
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Citations
67 Claims
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1. A method for assigning an organism to a group or species by detecting at least one polymorphism at a position of interrogation in a target nucleic acid sequence, comprising:
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(a) providing a plurality of different probes complementary to one or more reference nucleic acid sequences, said probes immobilized in an array on a solid surface, wherein said probes differ from each other at the position of interrogation; (b) hybridizing the target nucleic acid sequence to said probes in the array; (c) hybridizing the reference nucleic acid sequence to said probes in a separate, identical array; (d) comparing the hybridization pattern of step (b) to the hybridization pattern of step (c); and (e) detecting at least one polymorphism at the position of interrogation, wherein said detecting allows assignment of an organism to a group or species. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for assigning an organism to a group or species by detecting at least one polymorphism at a position of interrogation in a target nucleic acid sequence, comprising:
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(a) providing a plurality of different probes complementary to one or more reference nucleic acid sequences, said probes immobilized in an array on a solid surface;
wherein said probes differ from each other at the position of interrogation;(b) labeling the target nucleic acid sequence fluorescently with one color; and
labeling the reference nucleic acid sequence fluorescently with another color;(c) hybridizing the labeled reference and target nucleic acid sequences simultaneously to said probes in the array; (d) analyzing the hybridization pattern of step (c) to identify said at least one polymorphism. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
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Specification