摘要:
Provided is a method for characterising an analyte, which method comprises:
(a) providing a compound in which the analyte is attached by a cleavable linker to a reporter group relatable to the analyte, the linker having the following formula: wherein R 1 and R 2 are substituents as defined in any of claims 1-4 16 and 17; (b) cleaving the reporter group from the analyte; and (c) identifying the reporter group, thereby characterising the analyte.
摘要翻译:提供了一种用于表征分析物的方法,该方法包括:(a)提供其中分析物通过可切割接头连接到与分析物相关的报告基团的化合物,所述接头具有下式:其中R R 1和R 2是如权利要求1-4-16和17中任一项所定义的取代基; (b)从分析物裂解报道基团; 和(c)识别报告基团,从而表征分析物。
摘要:
Provided is a set of two or more mass labels, each label in the set comprising a mass marker moiety attached via a cleavable linker to a mass normalisation moiety, the mass marker moiety being fragmentation resistant, wherein the aggregate mass of each label in the set may be the same or different and the mass of the mass marker moiety of each label in the set may be the same or different, and wherein in any group of labels within the set having a mass marker moiety of a common mass each label has an aggregate mass different from all other labels in that group, and wherein in any group of labels within the set having a common aggregate mass each label has a mass marker moiety having a mass different from that of all other mass marker moieties in that group, such that all of the mass labels in the set are distinguishable from each other by mass spectrometry.
摘要:
The invention relates to a detection system comprising: a) a support (components (a) and (b)), at least one detection unit (component (b)), preferably a nucleic acid, bonded to the support, wherein said detection unit (component (b)) includes a region (A) having a constant structure and a region (B) adjacent to region (A) having a variable structure. The invention also relates to a method for separating individual components in a sample, wherein at least one detection unit (component (b)) that is bonded to the support is bonded to at least one component of the sample under appropriate conditions. The invention further relates to the utilization of the inventive detection system and method for locating and/or identifying or characterizing nucleic acids and/or proteins in a sample or for locating and/or identifying cellular or artificial binding partners.
摘要:
A chimaeric oligonucleotide library for use in identifying an antisense binding site in a target mRNA, comprising a plurality of distinct chimaeric oligonucleotides capable of hybridizing to mRNA to form a duplex, the nucleotide sequences of which each have a common length of 7 to 20 bases and are generated randomly or generated from information characterising the sequence of the target mRNA, wherein substantially all the nucleotide sequences of said common length which are present as sub-sequences in the target mRNA are present in the library, and wherein each nucleotide sequence comprises: a) a recognition region comprising a sequence of nucleotides which is recognisable by a duplex-cutting RNAase when hybridized to the mRNA, and b) a flanking region comprising a sequence of chemically-modified nucleotides which binds to the mRNA sufficiently tightly to stabilise the duplex for cutting of the mRNA in the duplex by the duplex-cutting RNAase, wherein the nucleotides constituting the flanking region are different from those constituting the recognition region, and wherein each oligonucleotide is protected against exonuclease attack.
摘要:
An array of hybridisation probes, each of which comprises a mass label linked to a known base sequence of predetermined length, wherein each mass label of the array, optionally together with the known base sequence, is relatable to that base sequence by mass spectrometry.
摘要:
Provided is a method for characterising an analyte by matrix assisted laser desorption ionisation (MALDI) mass spectrometry, which method comprises: (a) labelling the analyte with a light-absorbing label that absorbs light at a pre-determined frequency, to form a labelled analyte; (b) embedding the labelled analyte in a matrix formed from at least one compound that absorbs light, to form an embedded labelled analyte; (c) desorbing the embedded labelled analyte by exposing it to light having the pre-determined frequency, to form a desorbed analyte; and (d) detecting the desorbed analyte by mass spectrometry to characterise the analyte.
摘要:
An array of hybridisation probes, each of which comprises a mass label linked to a known base sequence of predetermined length, wherein each mass label of the array, optionally together with the known base sequence, is relatable to that base sequence by mass spectrometry.
摘要:
Provided is a method for characterising an analyte, which method comprises: (a) providing a compound in which the analyte is attached by a cleavable linker to a reporter group relatable to the analyte, the compound having formula (I) wherein either R comprises the reporter group and R' comprises the analyte, or R comprises the analyte and R' comprises the reporter group, and wherein n is 1 or 2; (b) cleaving the reporter group from the analyte; and (c) identifying the reporter group, thereby characterising the analyte.