摘要:
Provided is a method for characterising a polypeptide or a population of polypeptides, which method comprises the steps of:
(a) contacting a sample comprising one or more polypeptides with a lysine reactive agent to cap ε-amino groups; (b) optionally reacting the sample of polypeptides with an amine reactive reagent to block α-amino groups; (c) digesting the sample of polypeptides with a sequence specific cleavage reagent to produce peptide fragments; (d) optionally deactivating the cleavage reagent; (e) removing those peptides having uncapped or unblocked amino groups; and (f) recovering the N-terminal peptides.
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:
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.