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羟乙基纤维素/聚丙烯酰胺共混物在DNA测序研究中的应用
引用本文:杨润苗,王延梅.羟乙基纤维素/聚丙烯酰胺共混物在DNA测序研究中的应用[J].中国科技论文在线,2008(6):387-391.
作者姓名:杨润苗  王延梅
作者单位:中国科学技术大学高分子科学与工程系,合肥230026
基金项目:国家自然科学基金(50373040 50773074); 高等学校博士学科点专项科研基金(20070358029)
摘    要:利用合成的中等分子量的线性聚丙烯酰胺(LPA)和羟乙基纤维素(HEC)构成的共混聚合物网络对标准DNA样品BigDyeTeminatorV3.1进行测序研究。研究了LPA/HEC的比例,温度,电压等对分离效果的影响。实验证明该聚合物网络同时具有LPA对DNA优良的筛分性能和HEC对毛细管内壁动态涂覆的能力。用2.5%w/v的这种介质在没有对软件系统优化的情况下,73min内对标准DNA的读写长度可达900个碱基。

关 键 词:功能高分子  分离度  DNA测序  毛细管电泳

Mixed linear polyacrylamide / hydroxyethylcellulose matrix as an effective polymer network for DNA sequencing
YANG Runmiao,WANG Yanmei.Mixed linear polyacrylamide / hydroxyethylcellulose matrix as an effective polymer network for DNA sequencing[J].Sciencepaper Online,2008(6):387-391.
Authors:YANG Runmiao  WANG Yanmei
Institution:(Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026)
Abstract:A network formed by linear polyacrylamide (LPA) and hydroxyethylcellulose (HEC) is designed and tested for DNA sequencing on Bigdye Terminator V 3.1 standard DNA sample by capillary electrophoresis (CE). The performance of matrix on DNA sequencing is determined by LPA to HEC molar ratio and sequencing temperature. The results show that under the appropriate ratio of HEC to LPA, the networks yield a read length of up to 900 bases of contiguous sequence in 73 min without optimized base-calling software.
Keywords:functional polymer  resolution  DNA sequencing  capillary electrophoresis
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