add interactions collection to protein
add interactions collection to protein



Former-commit-id: 9d9bebec922d9b6754d1e42d973cc610791ffe0f
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine