Shorthand notation - General rules
From LipidomicsWiki
(Difference between revisions)
(New page: *Lipid class abbreviation heads each species description. *Variable components (constituents) like fatty acids are assigned based on their mass as number of C-atoms and number of double b...) |
Current revision (13:16, 28 October 2015) (view source) |
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*Lipid class abbreviation heads each species description. | *Lipid class abbreviation heads each species description. | ||
- | *Variable components (constituents) like fatty acids are assigned based on their mass as number of C-atoms and number of double bonds (C-atoms:double bonds). | + | *Variable components (constituents) like fatty acids are assigned based on their mass as number of C-atoms and number of double bonds ('''C-atoms:double bonds'''). |
- | *Only experimentally proven structural details of constituent fatty acids are assigned according to the rules defined for fatty acyls. | + | *Only '''experimentally proven structural details''' of constituent fatty acids are assigned according to the rules defined for fatty acyls. |
- | *When structural ambiguities are present (e.g. bond type, hydroxyl groups, branched chains) species are assigned by one of the following rules: | + | *When structural '''ambiguities '''are present (e.g. bond type, hydroxyl groups, branched chains) species are assigned by one of the following rules: |
- | **Lipid class and the (uncharged) molecular mass (Da) in parentheses (preferred for reporting in databases ≙ lipid class level mass). For fatty acyl substituents the mass of the corresponding free fatty acid is used. | + | **Lipid class and the '''(uncharged) molecular mass''' (Da) in parentheses (preferred for reporting in databases ≙ lipid class level mass). For fatty acyl substituents the mass of the corresponding free fatty acid is used. |
- | **Annotation based on assumptions must be clearly visible (preferred for publications ≙ lipid species level). | + | **Annotation based on '''assumptions '''must be clearly visible (preferred for publications ≙ lipid species level). |
- | *Detailed structures including stereochemistry are covered by LIPID MAPS nomenclature. | + | *Detailed structures including stereochemistry are covered by [http://www.lipidmaps.org/data/classification/LM_classification_exp.php LIPID MAPS nomenclature]. |
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[[Category:Nomenclature]] | [[Category:Nomenclature]] |
Current revision
- Lipid class abbreviation heads each species description.
- Variable components (constituents) like fatty acids are assigned based on their mass as number of C-atoms and number of double bonds (C-atoms:double bonds).
- Only experimentally proven structural details of constituent fatty acids are assigned according to the rules defined for fatty acyls.
- When structural ambiguities are present (e.g. bond type, hydroxyl groups, branched chains) species are assigned by one of the following rules:
- Lipid class and the (uncharged) molecular mass (Da) in parentheses (preferred for reporting in databases ≙ lipid class level mass). For fatty acyl substituents the mass of the corresponding free fatty acid is used.
- Annotation based on assumptions must be clearly visible (preferred for publications ≙ lipid species level).
- Detailed structures including stereochemistry are covered by LIPID MAPS nomenclature.