[Ontology-editors] constituent part

[Chris Mungall]

Actually if constituent has no special meaning then the reasoner is  
correct (the links are not asserted & the reasoner is inferring the  
links)

  / GO:0005576 extracellular region
   po GO:0020008 rhoptry {via is_a extracellular region part}
  / GO:0005623 cell
   po GO:0045177 apical part of cell {via is_a cell part}
    po GO:0020007 apical complex
     po GO:0020008 rhoptry


On Jul 8, 2008, at 11:48 AM, Jane Lomax wrote:

> Chris - I don't think 'constituent part' has any special meaning in  
> these defs - we could drop it. The reasoner is right to throw up  
> those "rhoptry lumen" relationships - they are dodgy, how can it be  
> both a cell part and extracellular?
>
> Jane
>
> Chris Mungall wrote:
>> We use the phrase "constituent part" in (almost) all the "X part"  
>> terms; e.g.:
>>
>> axoneme part [DEF: "Any constituent part of an axoneme, the bundle  
>> of microtubules and associated proteins that forms the core of  
>> cilia and flagella in eukaryotic cells and is responsible for  
>> their movements."]
>>
>> What exactly does "constituent" mean here?
>>
>> I recall being part of the discussion that lead to this, but can't  
>> find the relevant emails. Did we just import this term from the  
>> FMA? It seems to have a specific meaning in anatomy. I can't  
>> really find a solid definition in the FMA papers.
>>
>> I don't see anything in the component docs either.
>>
>> I think we should either document this or drop it
>>
>> Here's why I'm interested - I define X part generically as a  
>> cellular component that is part_of X.
>>
>> This means the reasoner throws up:
>>
>>     "rhoptry lumen" [GO:0034591] is_a "extracellular region  
>> part" [GO:0044421]
>>     "rhoptry lumen" [GO:0034591] is_a "cell part" [GO:0044464]
>>
>> Is there something subtle in the "constituent" qualifier that is  
>> missing from my xp definition, that simultaneously excludes the  
>> above links?
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>
>
> -- 
> Dr Jane  
> Lomax                                                                  
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