Re: [Psidev-pi-dev] [HUPO-PSI/mzTab] Protein group (#20)

[Johannes G. <not...@gi...>]

Hi all,
When we created mzTab we deliberately did not encode the complete information. mzTab was always only intended to encode final _results_.

Protein groups can be loosely recorded using the main (reporter) accession column in combination with the ambiguitiy_member column. As pointed out by @andrewrobertjones in down-stream analysis pipelines, you don't really care about anything else.

I therefore strongly suggest to keep mzTab as simple as possible and use mzIdentML / mzQuantML for the complex cases. That's how it's always meant to be. Otherwise, mzTab will become even more complicated to process and will neither contain a correct modelling of all use cases nor will it be easy to parse. 

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