Class: utilityClass

comment "Definition: Utility classes are created when simple slots are insufficient to describe an aspect of an entity or to increase compatibility of this ontology with other standards. The utilityClass class is actually a metaclass and is only present to organize the other helper classes under one class hierarchy; instances of utilityClass should never be created." (string)

http://www.biopax.org/release/biopax-level2.owl#utilityClass