PRINS 是什么意思
分类:生物科学说明:输入英文缩写格式如「CPU」,中间请不要加空格。
oligonucleotide primed in situ DNA synthesis 中文解释
| 英文缩写 | PRINS |
|---|---|
| 英文全称 | oligonucleotide primed in situ DNA synthesis |
| 中文解释 | 寡核苷酸引物原位DNA合成技术 |
| 缩写分类 | 生物科学 |
| 缩写简介 | Klch等于1989年发明了染色体上寡核苷酸引物原位DNA合成技术(oligonucleotide primed in situ DNA synthesis,PRINS),并成功地用于染色体特异α卫星DNA标记。其基本原理是用非标记的寡核苷酸引物同染色体上靶序列特异性地杂交,在DNA聚合酶作用下,当引物延伸时,掺入标记的核革酸可直接或间接地检量标记位点。PRINS技术的优点是不需克隆基因作探针,且由于杂交反应在前,标记在后,故非特异怀背景低。缺点是信号弱,灵敏度低,为克服这一制眯,Terkelsen等建立了重复引物原位标记技术(repeated PRINS),重复进行PRINS反应,使信号号强度明显提高。基于FISH的原理,发展了多色原位经物标记(multicolor PRINS),可测定二个以上靶序列在DNA分子上的相互的位置,且特异性比FISH还高。 |
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