obsolete catabolism by host of symbiont protein https://github.com/geneontology/go-ontology/issues/21469 true GO:0052362 biological_process OBSOLETE. The chemical reactions and pathways performed by an organism resulting in the breakdown of protein macromolecules within the symbiont organism. The symbiont is defined as the smaller of the organisms involved in a symbiotic interaction. This term was obsoleted because it represents a molecular function.