Base moiety-labeled detectable nucleatide
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United States of America Patent
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Aug 31, 1993
Issued Date -
N/A
app pub date -
Jun 4, 1990
filing date -
Jun 23, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides nucleotides and polynucleotides which are chemically modified or labeled so as to be capable of ready detection when attached to and/or incorporated in nucleic acid material. More particularly, this invention provides a nucleotide having the formula PM-SM-BASE-Sig wherein PM is a phosphate moiety, SM is a sugar moiety and BASE is a pyrimidine, purine or 7-deazapurine moiety. PM is attached at the 3' or the 5' position of SM when the nucleotide is a deoxyribonucleotide and at the 2', 3' or 5' position when the nucleotide is a ribonucleotide. BASE is attached to the 1' position of SM from the N.sup.1 position when BASE is a pyrimidine or the N.sup.9 position when BASE is a purine or a 7-deazapurine. Sig is a detectable moiety that is covalently attached to BASE at a position other than the C.sup.5 position when BASE is a pyrimidine, at a position other than the C.sup.8 position when BASE is a purine and at a position other than the C.sup.7 position when BASE is a 7-deazapurine.
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