001package org.biopax.paxtools.model.level3; 002 003/** 004 * Definition: An entity feature that represents the resulting physical entity subsequent to a cleavage or 005 * degradation event. 006 * 007 * Usage: Fragment Feature can be used to cover multiple types of modfications to the sequence of the physical 008 * entity: 009 * <ul> 010 * <li> A protein with a single cleavage site that converts the protein into two fragments (e.g. pro-insulin 011 * converted to insulin and C-peptide). TODO: CV term for sequence fragment? PSI-MI CV term for cleavage site? 012 * <li> A protein with two cleavage sites that removes an internal sequence e.g. an intein i.e. ABC -> A 013 * <li> Cleavage of a circular sequence e.g. a plasmid. 014 * </ul> 015 * In the case of removal ( e.g. intron) the fragment that is *removed* is specified in the feature location 016 * property. In the case of a "cut" (e.g. restriction enzyme cut site) the location of the cut is specified instead. 017 * Examples: Insulin Hormone 018 */ 019public interface FragmentFeature extends EntityFeature 020{ 021 022}