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IAminoAcid.java
/* $Revision$ $Author$ $Date$
 *
 * Copyright (C) 2006-2007  Egon Willighagen <egonw@users.sf.net>
 * 
 * Contact: cdk-devel@lists.sourceforge.net
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1
 * of the License, or (at your option) any later version.
 * All we ask is that proper credit is given for our work, which includes
 * - but is not limited to - adding the above copyright notice to the beginning
 * of your source code files, and to any copyright notice that you may distribute
 * with programs based on this work.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package org.openscience.cdk.interfaces;

/**
 * A AminoAcid is Monomer which stores additional amino acid specific 
 * informations, like the N-terminus atom.
 *
 * @cdk.module  interfaces 
 * @cdk.githash
 *
 * @author      Egon Willighagen <e.willighagen@science.ru.nl>
 * @cdk.created 2005-12-05
 * @cdk.keyword amino acid
 */
00038 public interface IAminoAcid extends IMonomer {

    /**
     * Retrieves the N-terminus atom.
     *
     * @return The Atom that is the N-terminus
     *
     * @see    #addNTerminus(IAtom)
     */
    public IAtom getNTerminus();

    /**
     * Add an Atom and makes it the N-terminus atom.
     *
     * @param atom  The Atom that is the N-terminus
     *
     * @see    #getNTerminus
     */
    public void addNTerminus(IAtom atom);
    
    /**
     * Retrieves the C-terminus atom.
     *
     * @return The Atom that is the C-terminus
     *
     * @see    #addCTerminus(IAtom)
     */
    public IAtom getCTerminus();

    /**
     * Add an Atom and makes it the C-terminus atom.
     *
     * @param atom  The Atom that is the C-terminus
     *
     * @see    #getCTerminus
     */
    public void addCTerminus(IAtom atom);

}

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