How to retrieve gene sequences from whole genomes
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7.9 years ago

I'm doing MLSA for some bacterial species but I could not get the sequences of many target housekeeping genes of these species on NCBI. The whole genomes of these bacteria are a lot on NCBI. I wonder whether there is any ways to retrieve/extract gene sequences from their whole genome. Anyone knows please help. Many thanks

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You can find the gene sequences for bacterial genomes at Ensembl bacteria. Take a look at the programmatic data access links on that same page.

You can also get similar information from NCBI under this directory hierarchy: https://ftp.ncbi.nih.gov/genomes/genbank/bacteria/

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Do you have the chromosomal position of those genes?

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Many thanks. sorry I'm new in molecular field, so could you please tell me where I can get the chromosomal position of those genes? and once I got them, what can I do next?

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I found that the chromosomal position of the same gene on different species is vastly different and I don't have the position number of each gene on each species chromosome. Much appreciated if you knew any ways to get the genes from the whole genome

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Provided the gene names are identical across the bacteria you can find the genomic positions of the genes in the gff files for each genome (NCBI).

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