Property talk:P684

Latest comment: 4 years ago by SCIdude in topic not efficient spacewise

Documentation

ortholog
orthologous gene in another species (use with 'species' qualifier)
Descriptionorthologous genes
Representsorthology (Q22687794)
Data typeItem
Domaingenes (note: this should be moved to the property statements)
Allowed values(should be a gene too, how to identify items about genes remains to be determined) (note: this should be moved to the property statements)
ExampleRELN (Q414043)Reln (Q14331135)
CRH (Q14819907)crhb (Q29748327)
SourceHomoloGene @ U.S. National Center for Biotechnology Information
Lists
Proposal discussionProposal discussion
Current uses
Total4,332,932
Main statement4,332,930>99.9% of uses
Qualifier2<0.1% of uses
Search for values
[create Create a translatable help page (preferably in English) for this property to be included here]
Symmetric property: if [item A] has this property linked to [item B], then [item B] should also have this property linked to [item A]. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P684#Symmetric, SPARQL
Scope is as main value (Q54828448): the property must be used by specified way only (Help)
List of violations of this constraint: Database reports/Constraint violations/P684#Scope, hourly updated report, SPARQL
 

Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)


Species qualifier edit

I had no time to reply on the proposal page, but after all that may be better to post it here :). Is it useful to add a "species" qualifier to this property. That seeems logically needless, as the species should be added to each item anyway, but that may make queires simpler and more efficient. --Zolo (talk) 09:49, 10 July 2013 (UTC)Reply

I also think that we don't really need the qualifier. --Tobias1984 (talk) 10:00, 10 July 2013 (UTC)Reply

Millions of symmetric constraint violations edit

@Andrawaag, Sebotic, Gstupp:, as operators of the ProteinBoxBot, and @Magnus Manske: as operator of the GeneDBot: it turns out that there are now ~2.75 million instances where a gene noted as having an ortholog in another species is not itself noted on its orthologs in the same way. Could these issues be resolved through some action on your part? Mahir256 (talk) 19:37, 7 April 2019 (UTC)Reply

not efficient spacewise edit

Really this would be better modeled by creating ortholog group items and linking to them with a property "ortholog group". Real life database: omabrowser.org. With the current scheme there will be potentially dozens (or hundreds with bacteria genes) links per gene created.

To be precise, OMA contains orthology relations for 3.8M genes of >2000 species in 920k groups with 12M links, so there are on average >12 members per group. With this data modeled as groups there is one link per gene and >12 links per group to yield 15.8M links. With the current scheme applied there would be >11 links on every gene, i.e. 42M links. It's quadratic in the average size of groups, which keeps growing as more organisms are sequenced. --SCIdude (talk) 15:36, 6 September 2019 (UTC)Reply

Return to "P684" page.