太阳成8722
Hytran Biotechnology Co., Ltd.

如何预测DNA甲基化位点

How to predict methylation sites on DNA

DNA甲基化是指将甲基基团共价添加到DNA胞嘧啶、腺嘌呤或鸟嘌呤上的修饰方式，对转录调控、染色体结构维持、X染色体失活和印记基因失活等发挥重要的作用。在研究DNA甲基化之前，如果能先预测DNA甲基化位点，后面的研究将事半功倍。本文将讲解如何预测DNA甲基化位点。

DNA methylation refers to the covalent addition of methyl groups to DNA cytosine, adenine, or guanine, playing a crucial role in transcriptional regulation, chromosomal structure maintenance, X-chromosome inactivation, and imprinted gene silencing. If DNA methylation sites can be predicted, subsequent research would be twice as efficient. This article shows how to predict methylation sites on DNA.

DNA甲基化位点多位于CpG岛，预测CpG岛有助于寻找DNA甲基化位点。CpG岛预测步骤如下：

Numerous DNA methylation sites locate on CpG islands, and prediction of CpG islands is helpful for screening DNA methylation sites. The steps for predicting CpG islands on DNA are as follows:

1 从https://www.methprimer.com/input.html网址进入MethPrimer

1 Enter MethPrimer website from https://www.methprimer.com/input.html

2 以FASTA格式输入DNA序列，选择BSP或MSP引物以及选择使用“CpG island prediction”筛选引物

2 Input DNA sequence in FASTA format, pick BSP or MSP primers and use CpG island prediction for primer selection

3 设置引物筛选参数，提交

3 Set parameters for primer selection

4 查看结果

4 View results

5 引物详情

5 Details of primers

此外，DNA甲基化包含多种类型，如6mA，4mC和5hmC。具体的DNA甲基化类型位点可通过iDNA-MS进行预测，步骤如下：

Additionally, there various types of DNA methylation, such as 6mA, 4mC and 5hmC. iDNA-MS could be used to predict specific DNA methylation sites, and steps are as follows:

1 从http://lin-group.cn/server/iDNA-MS/service.html网址进入iDNA-MS/Web-Serve

1 Enter iDNA-MS/Web-Serve from https://www.methprimer.com/input.html