Re: [Psidev-pi-dev] [HUPO-PSI/mzIdentML] CV terms for PSM, peptide, protein, protein group and mod localisation - need clean up (#25)

[andrewrobertjones <not...@gi...>]

Proposal from Eric:
[PSI-MS_statisticEntries.xlsx](https://github.com/HUPO-PSI/mzIdentML/files/307250/PSI-MS_statisticEntries.xlsx)

term component definitions:
  - attribute			a general property of an entity (may be a statistic, or a more general property)
  - statistic			a derived numerical metric generally related to confidence in a result
  - PTM localization		related to the exact position of a mass modification (not necessarily a biological PTM)
  - PSM-level			pertaining to one or more peptide-spectrum matches
  - peptide ion-level		pertaining to one or more PSM with the same sequence, modifications, charge
  - modified peptide-level	pertaining to one or more PSMs with the same sequence and modifications
  - peptide sequence-level	pertaining to one or more distinct peptide sequences, irrespective of charge or modification
  - protein-level		pertaining to one or more specific protein entries
  - protein group-level		pertaining to one or more protein ambiguity groups

-----------------------------------------

- analysis attribute

  - PTM localization attribute
    - PTM localization single result statistic
      - PTM localization PSM-level statistic
      - PTM localization distinct peptide-level statistic
    - PTM localization result list statistic

  - identification attribute
    - single identification result attribute
      - PSM-level identification attribute
        - PSM-level identification statistic
          - PSM-level identification confidence metric
            - PSM-level search engine specific statistic
        - cross-linking attribute
        - product ion attribute
      - peptide sequence-level identification attribute
        - peptide sequence-level identification statistic
      - protein-level identification attribute
        - protein-level identification statistic
      - protein group-level identification attribute
        - protein group-level identification statistic
    - result list attribute
      - PSM-level result list attribute
        - PSM-level result list statistic
      - distinct peptide-level result list attribute
        - distinct peptide-level result list statistic
      - protein-level result list attribute
        - protein-level result list statistic
      - protein group-level result list attribute
        - protein group-level result list statistic

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