Dear all, currently, our proteins in CCO are linked to their respective organisms by using the relationship "derives_from"; however, as Mathias makes references in one of his articles [1], this relationship should be carefully chosen and it seems that CCO is misusing it. In that sense, we were wondering whether another relationship could be proposed? such as: extracted_from? comes_from? occurs_in? isolated_from? appears_in_organism? cheers, Erick [1] http://www.ifomis.uni-saarland.de/Home/DerivationBookVersion1-2.pdf -- ================================================================== Erick Antezana http://www.cellcycleontology.org PhD student Tel:+32 (0)9 331 38 24 fax:+32 (0)9 3313809 VIB Department of Plant Systems Biology, Ghent University Technologiepark 927, 9052 Gent, BELGIUM erant@psb.ugent.be http://www.psb.ugent.be/~erant ==================================================================