You can't do this (in the sense of filter remotely and download only what you need).
You could run a remote blast search at NCBI with a valid entrez query (simulating remote filtering).
You could also search NCBI with species/genes of interest and download the search sequences from the web page results to create a local sequence search database from those.
I'm using entrez, and I did this command: Entrez.esearch(db='nucleotide',term="Mammals AND cox1[Gene]", idtype='acc') and it counts me 61818, but when I list the IDS I only get some of them. Is this the maximum number of IDS to print, or the result by itself?
That worked, thanks that worked. I want to delete the fasta sequences of that query so I did this line:
Entrez.efetch(db='nucleotide', id=id_list,retmode="fasta"), but I can't retrive the fasta sequences.
Can I do this: https://imgur.com/tu8lv27 with entrez?
Yes. That is the kind of search term you will use as shown in the search box. Here is a full list of those terms
I'm using entrez, and I did this command: Entrez.esearch(db='nucleotide',term="Mammals AND cox1[Gene]", idtype='acc') and it counts me 61818, but when I list the IDS I only get some of them. Is this the maximum number of IDS to print, or the result by itself?
Looks like you are doing this in python. Add
retmax=1000000to get all results.That worked, thanks that worked. I want to delete the fasta sequences of that query so I did this line: Entrez.efetch(db='nucleotide', id=id_list,retmode="fasta"), but I can't retrive the fasta sequences.