CSC334 Lab1
Retrieving a Nucleotide (DNA) sequence from the NCBI database
In this lab we retrieve a DNA sequence in FASTA format that we can use for various experiments.
- Point your browser to www.ncbi.nlm.nih.gov
- Select Nucleotide from the drop-down menu, and enter escherichia coli in the search box.
- Click on the first link, in our case on AB426820, and select FASTA in the display box. You should get something like this:
>gi|194306025|dbj|AB426820.1| Escherichia coli ompT mRNA for outer membrane protease T, partial cds, strain: JCM 5491 TGGGAATAGTCCTGACAACCCCTATTGCGATCAGCTCTTTTGCTTCTACCGAGACTTTATCGTTTACTCC TGACAACATAAATGCGGACATTAGTCTTGGAACTCTGAGCGGAAAAACAAAAGAGCGTGTTTATCTAGCC GAAGAAGGAGGCCGAAAGGTCAGTCAACTTGACTGGAAATTCAATAACGCTGCAATTATTAAAGGTGCAA TTAATTGGGATTTGATGCCCCAGATATCTATCGGGGCTGCTGGCTGGACAACTCTCGGTAGCCGAGGTGG CAATATGGTCGATCGGGACTGGATGGATTCCAGTAACCCCGGAACCTGGACGGATGAAAGTAGACACCCT GATACACAACTCAATTATGCCAACGAATTTGATCTGAATATCAGAGGCTGGCTCCCCAACGAACCCAATT ACCGCCTGGGACTCATGGCCGGATATCAGGAAAGCCGTTATAGCTTTACAGCCAGAGGGGGTTCCTATAT CTACAGTTCTGAGGAGGGATTCAGAGATGATATCGGCTCCTTCCCGAATGGAGAAAGAGCAATCGGCTAC AAACAACGTTTTAAAATGCCCTACATTGGCTTGACTGGAAGTTATCGTTATGAAGATTTTGAGCTAGGTG GTACATTTAAATACAGCGGCTGGGTGGAAGCATTTGATAACGATGAACACTATGACCCAGGAAAAAGAAT CACTTATCGCAGTAAAGTCAAAGACCAAAATTACTATTCTGTTGCAGTCAATGCAGGTTATTACGTAACG CCTAATGCAAAAGTTTATATTGAAGGCGCATGGAATCGGGTTACGAATAAAAAAGGTGATACTTCACTTT ATGATCACAATGATAACACTTCTGACTACAGCAAAAATGGTGCAGGCATAGAAAACTATAACTTCATCAC TACTGCTGGTC
- That's it, you have your first FASTA sequence for a nucleotide of the E. Coli bacteria. You can store it in a text file or copy and paste it in a program or a Web form, depending on what you want to do with it.
