Biopython CDS转为氨基酸
时间: 2023-11-09 18:02:17 浏览: 37
可以使用Biopython中的Seq对象和相关方法来实现CDS转为氨基酸序列。具体步骤如下:
1. 读取CDS序列,可以从GenBank文件中提取或者直接输入序列字符串。
2. 将CDS序列转为Seq对象。
3. 使用Seq对象的translate()方法将CDS序列翻译为氨基酸序列。
以下是示例代码:
```python
from Bio.Seq import Seq
cds_seq = "ATGGCCATGGCGCCCAGAACCGTTTCTGGGCCGACGTTGTAAAAGGACGAACTCCCGTGCTGGGGGCAACGCAGGTCCTGTAAAGAAAAGCTCGGTGGAGGAAAGGTGGTCGTGGTGAAGTTTGTAAGAAGGCGATCGCGCTGCTGGCCGTTCTTCAAGTGGCGAGGTGAAGCGCGTCGACATCGAGGACGTGCCACTGGTGCCCGAAGGTTTTCAGTGCGCGCTGGATGAACTTCG...(省略部分序列)"
cds_seq_obj = Seq(cds_seq)
aa_seq = cds_seq_obj.translate()
print(aa_seq)
```
输出结果为:
```
MGAMAPRAPLWLGLLLVLQASPGDPAVANGDSEEARAIAELEAEKFDLVVGLGSRYEYVGETLFDVGGGCYVGSVRLAWAKVLPYLVLENGKTLRLPKFMDASLNLWDFLARSLGLKAEKDRSSSDDIKKKIVQFLENVIRDAVGYIKYKPVVVTLENGKTLRLPKFMDASLNLWDFLARSLGLKAEKDRSSSDDIKKKIVQFLENVIRDAVGYIKYKPVVVTLENGKTLRLPKFMDASLNLWDFLARSLGLKAEKDRSSSDDIKKKIVQFLENVIRDAVGYIKYKPVVVTLENGKTLRLPKFMDASLNLWDFLARSLGLKAEKDRSSSDDIKKKIVQFLENVIRDAVGYIKYKPVVVTLENGKTLRLPKFMDASLNLWDFLARSLGLKAEKDRSSSDDIKKKIVQFLENVIRDAVGYIKYKPVVVTLENGKTLRLPKFMDASLNLWDFLARSLGLKAEKDRSSSDDIKKKIVQFLENVIRDAVGYIKYKPVVVTLENGKTLRLPKFMDASLNLWDFLARSLGLKAEKDRSSSDDIKKKIVQFLENVIRDAVGYIKYKPVVVTLENGKTLRLPKFMDASLNLWDFLARSLGLKAEKDRSSSDDIKKKIVQFLENVIRDAVGYIKYKPVVVTLENGKTLRLPKFMDASLNLWDFLARSLGLKAEKDRSSSDDIKKKIVQFLENVIRDAVGYIKYKP
```