Photocleavable agents and conjugates for the detection and isolation of biomolecules
First Claim
1. A method, comprising the steps of:
- a) conjugating a bioreactive agent to one or more oligonucleotide primers with a covalent bond that is selectively cleavable with electromagnetic radiation, wherein the conjugated bioreactive agent has a chemical structure selected from the group consisting of;
##STR7## wherein SUB comprises the oligonucleotide primer;
R1 and R2 are selected from the group consisting of hydrogen, alkyls, substituted alkyls, aryls, substituted aryls, --CF3, --NO2, and --COOH, and may be the same or different;
A is a divalent functional group selected from the group consisting of --O--, --S-- and --N--;
Y comprises one or more polyatomic groups which may be the same or different;
V comprises one or more monoatomic groups which may be the same or different;
Q comprises a spacer moiety;
m1 and m2 are integers between 1-5 which can be the same or different; and
D comprises a selectively detectable moiety which is distinct from R1 and R2, wherein D is not --NO2 ;
b) amplifying a nucleic acid sequence with said conjugated oligonucleotide primers; and
c) treating said amplified sequences with electromagnetic radiation.
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Abstract
This invention relates to agents and conjugates that can be used to detect and isolate target components from complex mixtures such as nucleic acids from biological samples, cells from bodily fluids, and nascent proteins from translation reactions. Agents comprise a detectable moiety bound to a photoreactive moiety. Conjugates comprise agents coupled to substrates by covalent bounds which can be selectively cleaved with the administration of electromagnetic radiation. Targets substances labeled with detectable molecules can be easily identified and separated from a heterologous mixture of substances. Exposure of the conjugate to radiation releases the target in a functional form and completely unaltered. Using photocleavable molecular precursors as the conjugates, label can be incorporated into macromolecules, the nascent macromolecules isolated and the label completely removed. The invention also relates to targets isolated with these conjugates which may be useful as pharmaceutical agents or compositions that can be administered to humans and other mammals. Useful compositions include biological agents such as nucleic acids, proteins, lipids and cytokines. Conjugates can also be used to monitor the pathway and half-life of pharmaceutical composition in vivo and for diagnostic, therapeutic and prophylactic purposes. The invention also relates to kits comprised of agents and conjugates that can be used for the detection of diseases, disorders and nearly any individual substance in a complex background of substances.
77 Citations
64 Claims
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1. A method, comprising the steps of:
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a) conjugating a bioreactive agent to one or more oligonucleotide primers with a covalent bond that is selectively cleavable with electromagnetic radiation, wherein the conjugated bioreactive agent has a chemical structure selected from the group consisting of;
##STR7## wherein SUB comprises the oligonucleotide primer;
R1 and R2 are selected from the group consisting of hydrogen, alkyls, substituted alkyls, aryls, substituted aryls, --CF3, --NO2, and --COOH, and may be the same or different;
A is a divalent functional group selected from the group consisting of --O--, --S-- and --N--;
Y comprises one or more polyatomic groups which may be the same or different;
V comprises one or more monoatomic groups which may be the same or different;
Q comprises a spacer moiety;
m1 and m2 are integers between 1-5 which can be the same or different; and
D comprises a selectively detectable moiety which is distinct from R1 and R2, wherein D is not --NO2 ;b) amplifying a nucleic acid sequence with said conjugated oligonucleotide primers; and c) treating said amplified sequences with electromagnetic radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 60)
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11. A method, comprising the steps of:
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a) conjugating an oligonucleotide with a bioreactive agent comprising a chemical structure selected from the group consisting of;
##STR9## wherein G is an O-ester selected from the group consisting of cyanomethyl, o and p nitrophenyl, 2,4-dinitrophenyl, 2,4,5-trichlorophenyl, pentachlorophenyl, pentafluorophenyl, N-hydroxyphthalimidyl, N-hydroxysuccinimidyl, 1-hydroxypiperidinyl, 5-chloro-8-hydroxy-quinolyl, 1-hydroxybenzotriazolyl, 3,4-dihydro-4-oxobenzotriazin-3-yl, 2,3-dihydro-2,5-diphenyl-3-oxo-thiophen-1,1-dioxide-4-yl, 1,2-benzisoxasolyl, 2-hydroxypyridyl, and combinations thereof;
A is a divalent functional group selected from the group consisting of --O--, --S-- and --N--;
Y comprises one or more polyatomic groups which may be the same or different;
V comprises one or more monoatomic groups which may be the same or different;
Q comprises a spacer moiety;
m1 and m2 are integers from 0-5 and may be the same or different; and
D comprises a selectively detectable moiety;b) amplifying a nucleic acid sequence with said conjugated oligonucleotide; and c) treating said amplified sequences with electromagnetic radiation. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 61)
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21. A method, comprising the steps of:
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a) conjugating an oligonucleotide with a bioreactive agent comprising a chemical structure selected from the group consisting of;
##STR11## wherein G is an N-amide selected from the group consisting of imidazolyl, benzimidazolyl, benzisooxasolyl, 3,5-dioxo-4-methyl-1, 2,4-oxadiazolidinyl, and combinations thereof;
A is a divalent functional group selected from the group consisting of --O, --S-- and --N--;
Y comprises one or more polyatomic groups which may be the same or different;
V comprises one or more monoatomic groups which may be the same or different;
Q comprises a spacer moiety;
m1 and m2 are integers from 0-5 and may be the same or different; and
D comprises a selectively detectable moiety;b) amplifying a nucleic acid sequence with said conjugated oligonucleotide; and c) treating said amplified sequences with electromagnetic radiation. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 62)
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31. A method, comprising the steps of:
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a) conjugating a bioreactive agent to one or more oligonucleotide primers with a covalent bond that is selectively cleavable with electromagnetic radiation, wherein the conjugated bioreactive agent has a chemical structure selected from the group consisting of;
##STR13## wherein SUB comprises the oligonucleotide primer;
R1 and R2 are selected from the group consisting of hydrogen, alkyls, substituted alkyls, aryls and substituted aryls, --CF3, --NO2, and --COOH, and may be the same or different;
A is a divalent functional group selected from the group consisting of --O--, --S-- and --N--;
Ym1 wherein Y comprises one or more polyatomic groups which may be the same or different and m1 is an integer from 1-5;
Vm2 wherein V comprises one or more monoatoms and m2 is an integer between 1-5;
Q is a spacer moiety; and
D comprises a detectable moiety which is distinct from R1 and R2, wherein D is not --NO2 ;b) producing nucleic acid with said conjugated oligonucleotide primers; and c) treating said produced nucleic acid with electromagnetic radiation. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 63)
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41. A method, comprising the steps of:
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a) conjugating a bioreactive agent to one or more oligonucleotide primers with a covalent bond that is selectively cleavable with electromagnetic radiation, wherein the conjugated bioreactive agent has a chemical structure selected from the group consisting of;
##STR15## wherein SUB comprises the oligonucleotide primer;
R1 and R2 are selected from the group consisting of hydrogen, alkyls, substituted alkyls, aryls and substituted aryls, --CF3, --NO2, and --COOH, and may be the same or different;
A is a divalent functional group selected from the group consisting of --O--, --S-- and --N--;
Ym1 wherein Y comprises one or more polyatomic groups which may be the same or different and m1 is an integer from 1-5;
Vm2 wherein V comprises one or more monoatoms and m2 is an integer between 1-5;
Q is a spacer moiety; and
may be the same or different; and
D comprises a detectable moiety which is distinct from R1 and R2, wherein D is not --NO2 ;b) amplifying a nucleic acid sequence with said conjugated oligonucleotide primers; and c) treating said amplified nucleic acid with electromagnetic radiation. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 64)
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51. A method, comprising the steps of:
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a) conjugating an oligonucleotide with a bioreactive agent comprising a chemical structure selected from the group consisting of;
##STR17## wherein X is selected from the group consisting of a halogen, N2, CH2 -halogen, --OH, --NHNH2, --OP(OR3)N(R4)R5, --N═
C═
O, --N═
C═
S, --S--S--R, NC2 H4, --NC4 H2 O2 and --OCO--G wherein G is selected from the group consisting of a halogen, N3, O-esters and N-amides;
R1, R2, R3, R4 and R5 are selected from the group consisting of hydrogen, alkyls, substituted alkyls, aryls and substituted aryls, --CF3, --NO2, --COOH and --COOR, and may be the same or different;
A is a divalent functional group selected from the group consisting of --O, --S-- and --NR1 --;
Y comprises one or more polyatomic groups which may be the same or different;
V comprises one or more monoatomic groups which may be the same or different;
Q is represented by the formula;
##STR18## wherein W and W'"'"' are each selected from the group consisting of --C(O)--, --C(O)--NH--, --HN--C(O)--, --NH--, --O--, --S-- and --CH2 --, and may be the same or different; and
n1 and n2 are integers from 0-10 which can be the same or different and if either n1 or n2 is zero, then W and W'"'"' are optional;
m1 and m2 are integers from 0-5 and may be the same or different; and
D comprises a selectively detectable moiety which is distinct from R1 -R5 ;b) amplifying a nucleic acid sequence with said conjugated oligonucleotide; and c) treating said amplified sequences with electromagnetic radiation. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59)
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Specification