[Psidev-mod-vocab] release of PSI MOD ontology with major changes

[Luisa M. <lui...@gm...>]

Dear MOD users,

John Garavelli and I have finalized a new version of PSI-MOD ontology 
now online at http://psidev.sourceforge.net/mod/data/PSI-MOD.obo and 
browsable at http://www.ebi.ac.uk/ontology-lookup/browse.do?ontName=MOD 
(will be refreshed over night).

Please note this new 1.005 release has number of *major* changes both in 
syntax and content.
 From the syntax point of view, here are the novelties:
-format change from obo 1.0 to 1.2
-tag 'xref_analog' changed to 'property_value'
-synonym reformatted and new synonyms types defined in the header

Contentwise the PSI-MOD ontology now fully reflect the changes occurred 
in UniMod (last update 2008-04-02). Moreover UniMod entries with 
multiple sites have been split into separate PSI-MOD terms that have 
been mapped to the exact corresponding RESID (version 53.00) entry when 
there is one.

Other additions in brief :
- 215 new terms mainly due to the splitting of UniMod entries with 
multiple sites (now PSI-MOD has 1366 terms in total)
- new relationship 'derives from' (e.g. N6-glycylglycyl-L-lysine 
derives_from MOD:01148 ! ubiquitinylated lysine)
- description of isobaric set through the hierarchy
- formula automatically checked and mass recalculated
- creation of a PSI MOD slim
- addition of chEBI Xref

I hope those who come at the PSI meeting will have the opportunity to 
have a look at it,

Best Regards,

Luisa