摘要:
A target nucleic acid sequence amplification method wherein at least the target nucleic acid sequence, at least one oligonucleotide primer specific for the target sequence, one or more enzymatic activities and nucleotides are provided, and the target sequence is amplified under conditions suitable in particular for said enzymatic or activity or activities, is disclosed. According to the method, at least one of the nucleotides is a prefunctionalized nucleotide that differs from the other nucleotides at least in that it includes at least one unprotected reactive covalence function in at least one predetermined site of the base of said nucleotide, in order to give a prefunctionalized amplificati product including at least one such prefunctionalized nucleotide. Nucleotides for carrying out the method are also disclosed.
摘要:
A method of amplification and/or of detection for removing contaminants in a liquid biological sample containing nucleic acids of interest to amplify, which includes treating the biological sample chemically or enzymatically to convert one type of base of the nucleic acids of interest to another type of base; adding amplification primers, intended for specifically amplifying said converted nucleic acids of interest, each primer being constituted of three different types of bases; adding to the biological sample, after these treatments, amplification reagents the primers previously synthesized; and placing the solution and the reagents in conditions permitting amplification and/or detection of the converted nucleic acids.
摘要:
A process for synthesis of a labelling reagent, a process for the labelling of a biological molecule, a labelled biological molecule obtained by the process, a process for labelling and fragmentation of a single or double strand nucleic acid, a labelled nucleic acid capable of being obtained by the process, a kit for detection of a target nucleic acid containing a labelled nucleic acid, a solid support onto which is attached a reagent and a process for capture of nucleic acids.
摘要:
A single- or double-stranded deoxyribonucleic acid (DNA) is fragmented and labeled by chemically fragmenting the DNA by creating at least one abasic site on the DNA, and attaching a marker to at least one of the fragments by means of a labeling reagent, the reagent covalently and predominantly coupling to at least one phosphate of the fragment. This method can be applied in the field of diagnosis.
摘要:
A process is provided for labeling with signal amplification a ribonucleic acid (RNA), comprising fragmenting the RNA to form RNA fragments, fixing a first ligand to a terminal phosphate located at least one of the 3′ end and the 5′ end of each of a plurality of the RNA fragments, the terminal phosphate having been released during the fragmentation, and binding a plurality of labeling agents to the first ligand on each of a plurality of the fragments.
摘要:
The present invention relates to a labeling reagent of formula: in which: R1 represents at least one detectable label, L and A are each a linker arm, n is an integer equal to 1, and u is an integer between 0 and 2. The present invention also describes a method of synthesizing said markers and also applications for the labeling of biological molecules, more particularly nucleic acids, with a labeling reagent bearing diazo and nitro functions. The invention is particularly suitable for use in the diagnostics field.
摘要:
The present invention relates to a process for labeling a synthetic or natural ribonucleic acid (RNA). It also relates to RNA fragments, which have been labeled by fragmenting the RNA to free a terminal phosphate of each fragment for further reaction, and labeling each fragment at the freed terminal phosphate which is located at the 3′ end and/or the 5′ end of each fragment of the RNA, and to the use of such RNA fragments, for example, in the field of medical diagnosis.