mol="SYS" Charge="0"
lab="N"	NH="2" 
lab="CA"	NH="1" 
lab="CB"	NH="2" 
lab="SE"	NH="0" 
lab="C"	NH="0" 
lab="O"	NH="0" 
lab="O2"	NH="1" 
lab="C4"	NH="2" 
lab="C5"	NH="0" 
lab="N2"	NH="2" 
lab="O3"	NH="0" 
