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pymzml / pymzML

pymzML - an interface between Python and mzML Mass spectrometry Files
https://pymzml.readthedocs.io/en/latest/
MIT License
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Mobility of Precursor of MS2 in data model #277

Open mwang87 opened 2 years ago

mwang87 commented 2 years ago

Is your feature request related to a problem? Please describe. When I have an MS2 with ion mobility specified in the precursor area, its not propogated.

Just a small snippet of mzML:

<selectedIonList count="1">
                <selectedIon>
                  <cvParam cvRef="PSI-MS" accession="MS:1000744" name="selected ion m/z" value="1222.001350924469" unitCvRef="PSI-MS" unitAccession="MS:1000040" unitName="m/z"/>
                  <cvParam cvRef="PSI-MS" accession="MS:1000042" name="peak intensity" value="109.0" unitCvRef="PSI-MS" unitAccession="MS:1000131" unitName="number of detector counts"/>
                  <cvParam cvRef="PSI-MS" accession="MS:1000041" name="charge state" value="1"/>
                  <cvParam cvRef="PSI-MS" accession="MS:1001966" name="product ion mobility" value="1.3823230824661825"/>
                </selectedIon>
              </selectedIonList>

The key value is the "product ion mobility"

MKoesters commented 2 years ago

Hi,

Thanks for reporting this, I'll have a look as soon as I can! Could you tell me which obo version you are using?

Best, Manuel