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Topic: CHEBI hierarchy (Read 4990 times) previous topic - next topic

CHEBI hierarchy

Hi, I'm trying to apply this very cool pathway analysis to my lipidomics data.

My problem is that CHEBI IDs for lipids are difficult to find in databases as the ones used in the Reactome pathways are often high-level  generalised ones. Eg. is a generic 1,2-diglyceride. When I search for matches in Reactome for my diglyceride annotations, they don't match as they are for specific DG species. Is there a hierarchical system by which I can find matches for my specific annotations, as well as any entries in CHEBI for higher ontological classes?

To complicate matters further, there is a separate entry for a diglcyeride with unspecified positions, and a third for diradylglycerides with unspecified r-groups that may be acyl,