public boolean setIsBBatom(){
		if ( name.equalsIgnoreCase("N") || name.equalsIgnoreCase("CA") || name.equalsIgnoreCase("C") || name.equalsIgnoreCase("O") 
				|| name.equalsIgnoreCase("OXT") || name.equalsIgnoreCase("H")  
				 || name.equalsIgnoreCase("H1") || name.equalsIgnoreCase("H2") || name.equalsIgnoreCase("H3") )
			return true;
		else
			return false;
	}