_:b665101498 . _:b665101498 . _:b665101498 . _:b665101498 . _:b665101498 . _:b665101498 . _:b665101498 "ISBN:0123195837" . _:b665101498 . _:b665101498 . _:b665101498 "Structural homology that involves structures with the same or similar relative positions." .