Section 1: Introduction The input files required (using their default file names): prmtop - a file containing a description of the molecular topology and the necessary force field parameters. inpcrd (or a restrt from a previous run) - a file containi…
定义 主要指基因组水平上由单个核苷酸的变异所引起的 DNA 序列多态性. 在基因组水平上由单个核苷酸的变异所引起的DNA序列多态性.即:在不同个体的同一条染色体或同一位点的核苷酸序列中,绝大多数核苷酸序列一致而只有一个碱基不同的现象. 首先来看看多态性(polymorphism)的英文解释 Polymorphism the quality or state of existing in or assuming different forms: such as: a variation in a…
来源:Kerson Huang, Lectures on Statistical Physics and Protein Folding, pp 24-25 把双链DNA解开就像拉拉链.设DNA有\(N\)个链环(link),每个链环有两种状态:闭合着或打开着,后一种状态比前一种状态的能量高\(\Delta\).打开的链环连续地排在一起,闭合的链环连续地排在一起,如下图所示.由于热涨落,链环会自发闭合或打开.问:打开的链环平均有多少? DNA的拉链模型 DNA的可能状态用打开的链环数目标记,\(…
http://acm.hdu.edu.cn/showproblem.php?pid=1560 DNA sequence Time Limit: 15000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 732 Accepted Submission(s): 356 Problem Description The twenty-first century is a…
DNA Sequence Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 11860 Accepted: 4527 Description It's well known that DNA Sequence is a sequence only contains A, C, T and G, and it's very useful to analyze a segment of DNA Sequence,For ex…
DNA repair Time Limit: 2000MS Memory Limit: 65536KB 64bit IO Format: %I64d & %I64u Description Biologists finally invent techniques of repairing DNA that contains segments causing kinds of inherited diseases. For the sake of simplicity, a DNA is repr…
引用自NCBI的概念(https://www.ncbi.nlm.nih.gov/projects/SNP/docs/rs_attributes.html#gmaf) Global minor allele frequency (MAF): dbSNP is reporting the minor allele frequency for each rs included in a default global population. Since this is being provided…
DNA甲基化测序方法介绍 甲基化 表观遗传学 DNA 甲基化是表观遗传学(Epigenetics)的重要组成部分,在维持正常细胞功能.遗传印记.胚胎发育以及人类肿瘤发生中起着重要作用,是目前新的研究热点之一. DNA 甲基化及CpG岛 DNA 甲基化是最 DNA 甲基化是表观遗传学(Epigenetics)的重要组成部分,在维持正常细胞功能.遗传印记.胚胎发育以及人类肿瘤发生中起着重要作用,是目前新的研究热点之一. DNA 甲基化及CpG岛 DNA 甲基化是最早发现的基因表观修饰方式之一,可能存…
DNA序列编码中Hairpin的定义和计算 觉得有用的话,欢迎一起讨论相互学习~Follow Me 参考文献 [1] 张凯. DNA计算核酸编码优化及算法设计[D]. 2008. [2] Shin, Soo Yong , et al. "Multiobjective evolutionary optimization of DNA sequences for reliable DNA computing." IEEE Transactions on Evolutionary Compu…
DNA Sequence Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 19991 Accepted: 7603 Description It's well known that DNA Sequence is a sequence only contains A, C, T and G, and it's very useful to analyze a segment of DNA Sequence,For ex…
DNA binding motif比对算法 2012-08-31 ~ ADMIN 之前介绍了序列比对的一些算法.本节主要讲述motif(有人翻译成结构模式,但本文一律使用基模)的比对算法. 那么什么是基模么?基模是对DNA结合位点的一种描述.它有几种描述方式,一种是共同序列(consensus sequences)一种是位点倾向距阵(Position Specific Frequency Matrices(PSFM))而对于PSFM,有两种表示方式,一种叫PCM,一种叫PFM,前者是Positi…