Method for gene identification signature (GIS) analysis
First Claim
Patent Images
1. A method for preparing at least one ditag comprising the steps of:
- (i) producing at least one full-length cDNA transcript, said transcript having a 5′
terminus including the starting point of the full-length cDNA transcript and a 3′
terminus including the ending point of the full-length cDNA transcript;
(ii) cleaving the full-length cDNA transcript at its 5′
terminus to extract a 5′
tag 8-20 base pairs (bp) in length, said 5′
tag having a 5′
end and a 3′
end and including the starting point of the full-length cDNA transcript, and cleaving the full-length cDNA transcript at its 3′
terminus to extract a 3′
tag 8-20 bp in length, said 3′
tag having a 5′
end and a 3′
end and including the ending point of the full-length cDNA transcript; and
(iii) generating at least one ditag by ligating the 3′
end of the 5′
tag to the 5′
end of the 3′
tag.
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Abstract
An isolated oligonucleotide comprising at least one ditag, wherein the ditag comprises two joined first and second sequence tags, wherein the first tag comprises the 5′-terminus sequence and the second tag comprises the 3′-terminus sequence of a nucleic acid molecule or a fragment thereof. The ditag analysis is useful for gene discovery and genome mapping.
15 Citations
22 Claims
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1. A method for preparing at least one ditag comprising the steps of:
-
(i) producing at least one full-length cDNA transcript, said transcript having a 5′
terminus including the starting point of the full-length cDNA transcript and a 3′
terminus including the ending point of the full-length cDNA transcript;(ii) cleaving the full-length cDNA transcript at its 5′
terminus to extract a 5′
tag 8-20 base pairs (bp) in length, said 5′
tag having a 5′
end and a 3′
end and including the starting point of the full-length cDNA transcript, and cleaving the full-length cDNA transcript at its 3′
terminus to extract a 3′
tag 8-20 bp in length, said 3′
tag having a 5′
end and a 3′
end and including the ending point of the full-length cDNA transcript; and(iii) generating at least one ditag by ligating the 3′
end of the 5′
tag to the 5′
end of the 3′
tag. - View Dependent Claims (2, 3, 4)
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5. A method for preparing at least one ditag comprising the steps of:
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(i) providing at least one full-length cDNA transcript having a 5′
terminus including the starting point of the full-length cDNA transcript and a 3′
terminus including the ending point of the full-length cDNA transcript, and flanked by two adapters;(ii) cleaving the full-length cDNA transcript at its 5′
terminus to extract a 5′
tag 8-20 base pairs (bp) in length, said 5′
tag having a 5′
end and a 3′
end and including the starting point of the full length cDNA transcript and an adapter, and cleaving the full-length cDNA transcript at its 3′
terminus to extract a 3′
tag 8-20 by in length, said 3′
tag having a 5′
end and a 3′
end and including the ending point of the full length cDNA transcript and an adapter; and(iii) generating at least one ditag flanked by two adapters by ligating the 3′
end of the 5′
tag to the 5′
end of the 3′
tag. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification