I have been researching NCBI eutils and wish to get some 'big data' from it. I know that I can construct queries to query one of (I think) 8 databases, like this:
which queries the nucleotide database for an id 2765657.
I am looking for a query that will return:
functional annotations of the sequences (e.g. exons, introns)
metadata (e.g. chromosome)
Would anyone be able to show an example of how to search the eutils to get samples of records as described above?
I would need to know:
- Which database to search?
- how to list available records?
- how to query for a sample of the records?
Any help would be greatly appreciated.