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K562细胞株表达基因探针制作的探讨 被引量:3

STUDY OF PROBE-PREPARATION OF THE EXPRESSION GENES FOR K562 CELL LINE
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摘要 目的 研究基因芯片探针的制备方法 ,为K5 6 2细胞基因表达谱芯片的制作及其在基因表达研究中应用打下基础。 方法 以人红白血病K5 6 2细胞株为材料 ,应用一种分离显示基因的新方法即限制性显示 (RD PCR)技术 ,分离DNA片段 ,作为基因芯片探针。 结果 分离到近千个大小在 2 0 0~ 5 0 0bp的基因片段 ,认为该方法可以克服DD PCR中出现的假阳性较多的缺点 ,简单易操作 ,且利用该方法分离的基因探针 ,制备DNA微集芯片 ,同全长cDNA探针制作芯片相比 ,其探针长度小且相对均一 ,杂交动力学易于控制。 结论 限制性显示技术为基因芯片探针的制备提供了一个全新的思路 。 Objective To develop a better probe preparation method of gene chips for the further gene chips fabrication and its application in the gene expression. Method Using human leukemia K562 cells as material,applying a new kind of technology for gene differential display restriction display(RD PCR),we isolated a lot of cDNA fragments as probes of gene chips. Results This method has overcome the shortcoming of more pseudopositives in DD PCR,and was easy to be manipulated.Compared with the chip fabricated with full cDNA probes,the probe length is comparatively homogeneous,and the hybridization dynamics is apt to be controlled.Conclusion\ RD PCR technology could provide a new strategy for the probe preparation of gene chips.\;[
出处 《解剖学报》 CAS CSCD 北大核心 2002年第1期59-62,共4页 Acta Anatomica Sinica
基金 国家自然科学基金资助项目 (3 9880 0 3 2 ) 广州市重点科技攻关资助项目 (990 44 80 2 2 )
关键词 基因芯片 基因探针 限制性显示 Gene chips Gene probe Restriction display
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