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Do all samples in SRA have a corresponding sample in BioSample?

I would like to depend on Biosample database for sample metadata rather than SRA. Do all SRA samples have a corresponding sample in Biosample? I've browsed a handful of studies, and found that they do. However, I'm wondering if anyone knows better than I.

sra sequencing
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updated by JJ JJ • written by bimlay2 • bimlay2

I know that samples submitted to NCBI are regularly pulled into BioSamples by Ensembl. I'm not sure if that happens in the other direction.

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written by colin.kern colin.kern

Check this directory for SRA reports. I would look at the datalist directory to see if those files help.

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written by GenoMax GenoMax

2 answers

According to the rules of NCBI, it is mandatory for each SRA submission to have a registered corresponding BioSample: "Registering project and biological samples at the NCBI BioProject and the BioSample databases is a prerequisite for any public SRA submission" (https://www.ncbi.nlm.nih.gov/sra/docs/submitbio/).

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written by shelkmike shelkmike

I have accessed many public datasets and all of them have a BioSample ID, an experiment ID and run ID(s). Many but not all have a secondary sample ID which links to GEO.

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written by JJ JJ

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