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    • 1. 发明申请
    • METHOD FOR GENERATING CHROMOSOME REGION-SPECIFIC PROBES
    • 用于产生染色体区域特异性探针的方法
    • WO1993011265A1
    • 1993-06-10
    • PCT/US1992010429
    • 1992-12-03
    • THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    • THE REGENTS OF THE UNIVERSITY OF MICHIGANTRENT, Jeffrey, M.MELTZER, Paul, S.
    • C12Q01/68
    • C12N15/1093C12Q1/6841C12Q1/6853C12Q1/6876C12Q2600/156G01T1/1648G21K1/025
    • The present invention provides rapid, reproducible procedures for generating chromosome region-specific probes (CRSPs) for diagnostic and research applications. Region-specific probes are provided by direct in vitro enzymatic amplification (PCR) of microdissected chromosomal or hyridized DNA from the chromosomal region of interest, followed by labelling for in situ hybridization to metaphase chromosomes and interphase nuclei. CRSP specificity can be further enhanced using a linker-based strategy, wherein linkered DNA (LDNA) sequences prepared from DNA libraries are hybridized to chromosomal DNA in situ, microdissected from the chromosomal region of interest and then directly amplified using the linker as primer. These procedures make it possible to generate a vast number of chromosome region-specific probes without microchemical manipulation after dissection and provide means for identifying cryptic chromosomal alterations previously not amenable to routine cytogenetic analysis. Probes generated by the methods of the present invention can also be used for screening any DNA library of interest.
    • 本发明提供用于产生用于诊断和研究应用的染色体区特异性探针(CRSP)的快速,可再现的程序。 区域特异性探针通过目的染色体区域的显微切割染色体或杂交DNA的直接体外酶扩增(PCR)提供,然后进行标记用于中期染色体和间期核的原位杂交。 可以使用基于接头的策略进一步提高CRSP特异性,其中由DNA文库制备的接头DNA(LDNA)序列原位杂交到染色体DNA,并从感兴趣的染色体区域显微切割,然后使用接头作为引物直接扩增。 这些程序使得可以在解剖后产生大量的染色体区域特异性探针而不进行微量化学操作,并提供用于鉴定以前不适合于常规细胞遗传学分析的隐性染色体改变的方法。 通过本发明的方法产生的探针也可以用于筛选目的的任何DNA文库。