[ None ]

[ GLY-COO- ]
[ replace ]
CA      CA    	opls_284   12.0110   -0.020
C	C     	opls_271   12.0110    0.700
[ add ]
2	8	C	CA	N
	O 	opls_272   15.9994   -0.800
[ impropers ]
CA	O1	 C     O2	improper_O_C_X_Y
[ delete ]
O

[ GLY-ZWITTERION_COO- ]
[ replace ]
CA      CA    	opls_298   12.0110    0.090
C	C     	opls_271   12.0110    0.700
[ add ]
2	8	C	CA	N
	O 	opls_272   15.9994   -0.800
[ impropers ]
CA	O1	 C     O2	improper_O_C_X_Y

[ delete ]
O

[ PRO-COO- ]
[ replace ]
CA      CA    	opls_285   12.0110   -0.090
C	C     	opls_271   12.0110    0.700
[ add ]
2	8	C	CA	N
	O 	opls_272   15.9994   -0.800
[ impropers ]
CA	O1	 C     O2	improper_O_C_X_Y


[ delete ]
O

[ PRO-ZWITTERION_COO- ]
[ replace ]
CA      CA    	opls_246   12.0110    0.130
C	C     	opls_271   12.0110    0.700
[ add ]
2	8	C	CA	N
	O 	opls_272   15.9994   -0.800
[ impropers ]
CA	O1	 C     O2	improper_O_C_X_Y


[ delete ]
O

[ COO- ]
[ replace ]
CA      CA    	opls_283   12.0110    0.040
C	C	opls_271   12.0110    0.700
[ add ]
2	8	C	CA	N
	O	opls_272   15.9994   -0.800
[ impropers ]
CA	O1	 C     O2	improper_O_C_X_Y


[ delete ]
O

[ ZWITTERION_COO- ]
[ replace ]
CA      CA    	opls_299   12.0110    0.150
C	C	opls_271   12.0110    0.700
[ add ]
2	8	C	CA	N
	O	opls_272   15.9994   -0.800
[ impropers ]
CA	O1	 C     O2	improper_O_C_X_Y


[ delete ]
O

[ GLY-COOH ]
[ replace ]
C	C	opls_267   12.0110   0.520
O	O	opls_268   15.9994  -0.530 
[ add ]
1	2	C	CA	N
	OT	opls_269   15.9994  -0.440
1	2	O	C	CA
	HO	opls_270    1.0080   0.450
[ impropers ]
CA	OT      C      O         improper_O_C_X_Y


[ COOH ]
[ replace ]
C	C	opls_267   12.0110   0.520
O	O	opls_268   15.9994  -0.530 
[ add ]
1	2	C	CA	N
	OT	opls_269   15.9994  -0.440
1	2	O	C	CA
	HO	opls_270    1.0080   0.450
[ impropers ]
CA	OT      C      O         improper_O_C_X_Y



 
