Index: modlib/top_cacb.lib
===================================================================
--- modlib/top_cacb.lib	(revision 6545)
+++ modlib/top_cacb.lib	(working copy)
@@ -411,33 +411,33 @@
 
 RESI GDP     -2.00000
 ATOM PB   PB      0.00000
-ATOM O1B  OT     -0.45482
-ATOM O2B  OT     -0.17493
-ATOM O3B  OT     -0.17493
+ATOM O1B  OT     -0.46339
+ATOM O2B  OT     -0.17823
+ATOM O3B  OT     -0.17823
 ATOM PA   PA      0.00000
-ATOM O1A  OT     -0.45482
-ATOM O2A  OT     -0.17493
-ATOM O3A  OS     -0.46881
-ATOM O5'  OS     -0.46881
-ATOM C5'  CT1    -0.00630
-ATOM C4'  CT1     0.12223
-ATOM O4'  OS     -0.25890
-ATOM C3'  CT1     0.31857
-ATOM O3'  OT     -0.17493
-ATOM C2'  CT1     0.40959
-ATOM O2'  OT     -0.17493
-ATOM C1'  CT1     0.25356
-ATOM N9   NY     -0.20991
-ATOM C8   CT1     0.44860
-ATOM N7   NY     -0.20991
-ATOM C5   CT1     0.06111
-ATOM C6   CT1    -0.10706
-ATOM O6   OS     -0.45482
-ATOM N1   NY     -0.20991
-ATOM C2   CT1     0.38748
+ATOM O1A  OT     -0.46339
+ATOM O2A  OT     -0.17823
+ATOM O3A  OS     -0.47765
+ATOM O5'  OS     -0.47765
+ATOM C5'  CT1    -0.00642
+ATOM C4'  CT1     0.12099
+ATOM O4'  OS     -0.26377
+ATOM C3'  CT1     0.31534
+ATOM O3'  OT     -0.17823
+ATOM C2'  CT1     0.40544
+ATOM O2'  OT     -0.17823
+ATOM C1'  CT1     0.25098
+ATOM N9   NY     -0.21387
+ATOM C8   CT1     0.44405
+ATOM N7   NY     -0.21387
+ATOM C5   CT1     0.06049
+ATOM C6   CT1    -0.10907
+ATOM O6   OS     -0.46339
+ATOM N1   NY     -0.10694
+ATOM C2   CT1     0.38355
 ATOM N2   NY      0.00000
-ATOM N3   NY     -0.20991
-ATOM C4   CT1     0.38748
+ATOM N3   NY     -0.21387
+ATOM C4   CT1     0.38355
 BOND PB O1B PB O2B PB O3B PB O3A PA O1A PA O2A
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
@@ -1445,7 +1445,7 @@
 BOND PA O3 O3 PN PN O1N PN O5D O5D C5D C5D C4D
 BOND C4D O4D O4D C1D C1D C2D C2D C3D C3D C4D C2D O2D
 BOND C3D O3D C1D N1N N1N C2N C2N C3N C3N C4N C4N C5N
-BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N
+BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N O2N PN
 IMPR N6A N1A C5A C6A C7N N7N C3N O7N C7N C3N N7N O7N
 IC PN    O3    PA    O1A       0.0000    0.0000    0.0000    0.0000    0.0000
 IC PN    O3    PA    O2A       0.0000    0.0000    0.0000    0.0000    0.0000
Index: modlib/top_mnch.lib
===================================================================
--- modlib/top_mnch.lib	(revision 6545)
+++ modlib/top_mnch.lib	(working copy)
@@ -601,33 +601,33 @@
 
 RESI GDP     -2.00000
 ATOM PB   PB      0.00000
-ATOM O1B  OT     -0.45482
-ATOM O2B  OT     -0.17493
-ATOM O3B  OT     -0.17493
+ATOM O1B  OT     -0.46339
+ATOM O2B  OT     -0.17823
+ATOM O3B  OT     -0.17823
 ATOM PA   PA      0.00000
-ATOM O1A  OT     -0.45482
-ATOM O2A  OT     -0.17493
-ATOM O3A  OS     -0.46881
-ATOM O5'  OS     -0.46881
-ATOM C5'  CT1    -0.00630
-ATOM C4'  CT1     0.12223
-ATOM O4'  OS     -0.25890
-ATOM C3'  CT1     0.31857
-ATOM O3'  OT     -0.17493
-ATOM C2'  CT1     0.40959
-ATOM O2'  OT     -0.17493
-ATOM C1'  CT1     0.25356
-ATOM N9   NY     -0.20991
-ATOM C8   CT1     0.44860
-ATOM N7   NY     -0.20991
-ATOM C5   CT1     0.06111
-ATOM C6   CT1    -0.10706
-ATOM O6   OS     -0.45482
-ATOM N1   NY     -0.20991
-ATOM C2   CT1     0.38748
+ATOM O1A  OT     -0.46339
+ATOM O2A  OT     -0.17823
+ATOM O3A  OS     -0.47765
+ATOM O5'  OS     -0.47765
+ATOM C5'  CT1    -0.00642
+ATOM C4'  CT1     0.12099
+ATOM O4'  OS     -0.26377
+ATOM C3'  CT1     0.31534
+ATOM O3'  OT     -0.17823
+ATOM C2'  CT1     0.40544
+ATOM O2'  OT     -0.17823
+ATOM C1'  CT1     0.25098
+ATOM N9   NY     -0.21387
+ATOM C8   CT1     0.44405
+ATOM N7   NY     -0.21387
+ATOM C5   CT1     0.06049
+ATOM C6   CT1    -0.10907
+ATOM O6   OS     -0.46339
+ATOM N1   NY     -0.10694
+ATOM C2   CT1     0.38355
 ATOM N2   NY      0.00000
-ATOM N3   NY     -0.20991
-ATOM C4   CT1     0.38748
+ATOM N3   NY     -0.21387
+ATOM C4   CT1     0.38355
 BOND PB O1B PB O2B PB O3B PB O3A PA O1A PA O2A
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
@@ -1553,7 +1553,7 @@
 BOND PA O3 O3 PN PN O1N PN O5D O5D C5D C5D C4D
 BOND C4D O4D O4D C1D C1D C2D C2D C3D C3D C4D C2D O2D
 BOND C3D O3D C1D N1N N1N C2N C2N C3N C3N C4N C4N C5N
-BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N
+BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N O2N PN
 IMPR N6A N1A C5A C6A C7N N7N C3N O7N C7N C3N N7N O7N
 IC PN    O3    PA    O1A       0.0000    0.0000    0.0000    0.0000    0.0000
 IC PN    O3    PA    O2A       0.0000    0.0000    0.0000    0.0000    0.0000
Index: modlib/top_polh.lib
===================================================================
--- modlib/top_polh.lib	(revision 6545)
+++ modlib/top_polh.lib	(working copy)
@@ -1016,10 +1016,10 @@
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
 BOND N9 C8 N9 C4 C8 N7 N7 C5 C5 C6 C5 C4
-BOND C6 O6 C6 N1 N1 C2 C2 N2 C2 N3 N3 C4
-BOND O2B HOB2 O3B HOB3 O2A HOA2 C5' H5' C5' H5'' C4' H4'
-BOND C3' H3' O3' HO3' C2' H2' O2' HO2' C1' H1' C8 H8
-BOND N2 HN21 N2 HN22
+BOND C6 O6 C6 N1 N1 C2 N1 HN1 C2 N2 C2 N3
+BOND N3 C4 O2B HOB2 O3B HOB3 O2A HOA2 C5' H5' C5' H5''
+BOND C4' H4' C3' H3' O3' HO3' C2' H2' O2' HO2' C1' H1'
+BOND C8 H8 N2 HN21 N2 HN22
 IC O1B   PB    O2B   HOB2      1.4800  118.3200 -180.0000  109.4700    1.0900
 IC O3B   PB    O2B   HOB2      1.5200  106.5500  -54.4500  109.4700    1.0900
 IC O3A   PB    O2B   HOB2      1.5700  105.5200   56.0700  109.4700    1.0900
@@ -2125,7 +2125,7 @@
 BOND C1D C2D C2D C3D C3D C4D C2D O2D O2D HO2N C3D O3D
 BOND O3D HO3N C1D N1N N1N C2N C2N C3N C3N C4N C4N C5N
 BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N N7N H71N
-BOND N7N H72N
+BOND N7N H72N O2N PN
 IMPR H62A C6A H61A N6A N6A N1A C5A C6A C7N N7N C3N O7N
 IMPR C7N C3N N7N O7N N7N C7N H71N H72N N7N C7N H72N H71N
 IC PN    O3    PA    O1A       0.0000    0.0000    0.0000    0.0000    0.0000
Index: modlib/top_allh.lib
===================================================================
--- modlib/top_allh.lib	(revision 6545)
+++ modlib/top_allh.lib	(working copy)
@@ -1414,10 +1414,10 @@
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
 BOND N9 C8 N9 C4 C8 N7 N7 C5 C5 C6 C5 C4
-BOND C6 O6 C6 N1 N1 C2 C2 N2 C2 N3 N3 C4
-BOND O2B HOB2 O3B HOB3 O2A HOA2 C5' H5' C5' H5'' C4' H4'
-BOND C3' H3' O3' HO3' C2' H2' O2' HO2' C1' H1' C8 H8
-BOND N2 HN21 N2 HN22
+BOND C6 O6 C6 N1 N1 C2 N1 HN1 C2 N2 C2 N3
+BOND N3 C4 O2B HOB2 O3B HOB3 O2A HOA2 C5' H5' C5' H5''
+BOND C4' H4' C3' H3' O3' HO3' C2' H2' O2' HO2' C1' H1'
+BOND C8 H8 N2 HN21 N2 HN22
 IC O1B   PB    O2B   HOB2      1.4800  118.3200 -180.0000  109.4700    1.0900
 IC O3B   PB    O2B   HOB2      1.5200  106.5500  -54.4500  109.4700    1.0900
 IC O3A   PB    O2B   HOB2      1.5700  105.5200   56.0700  109.4700    1.0900
@@ -2855,7 +2855,7 @@
 BOND C3D O3D O3D HO3N C4D H4D C1D N1N N1N C2N C2N C3N
 BOND C3N C4N C4N C5N C5N C6N C6N N1N C2N H2N C3N C7N
 BOND C7N O7N C7N N7N N7N H71N N7N H72N C4N H4N C5N H5N
-BOND C6N H6N
+BOND C6N H6N O2N PN
 IMPR H62A C6A H61A N6A N6A N1A C5A C6A C7N N7N C3N O7N
 IMPR C7N C3N N7N O7N N7N C7N H71N H72N N7N C7N H72N H71N
 IMPR H6N N1N C5N C6N H5N C6N C4N C5N H4N C5N C3N C4N
Index: modlib/top_mnss.lib
===================================================================
--- modlib/top_mnss.lib	(revision 6545)
+++ modlib/top_mnss.lib	(working copy)
@@ -607,33 +607,33 @@
 
 RESI GDP     -2.00000
 ATOM PB   PB      0.00000
-ATOM O1B  OT     -0.45482
-ATOM O2B  OT     -0.17493
-ATOM O3B  OT     -0.17493
+ATOM O1B  OT     -0.46339
+ATOM O2B  OT     -0.17823
+ATOM O3B  OT     -0.17823
 ATOM PA   PA      0.00000
-ATOM O1A  OT     -0.45482
-ATOM O2A  OT     -0.17493
-ATOM O3A  OS     -0.46881
-ATOM O5'  OS     -0.46881
-ATOM C5'  CT1    -0.00630
-ATOM C4'  CT1     0.12223
-ATOM O4'  OS     -0.25890
-ATOM C3'  CT1     0.31857
-ATOM O3'  OT     -0.17493
-ATOM C2'  CT1     0.40959
-ATOM O2'  OT     -0.17493
-ATOM C1'  CT1     0.25356
-ATOM N9   NY     -0.20991
-ATOM C8   CT1     0.44860
-ATOM N7   NY     -0.20991
-ATOM C5   CT1     0.06111
-ATOM C6   CT1    -0.10706
-ATOM O6   OS     -0.45482
-ATOM N1   NY     -0.20991
-ATOM C2   CT1     0.38748
+ATOM O1A  OT     -0.46339
+ATOM O2A  OT     -0.17823
+ATOM O3A  OS     -0.47765
+ATOM O5'  OS     -0.47765
+ATOM C5'  CT1    -0.00642
+ATOM C4'  CT1     0.12099
+ATOM O4'  OS     -0.26377
+ATOM C3'  CT1     0.31534
+ATOM O3'  OT     -0.17823
+ATOM C2'  CT1     0.40544
+ATOM O2'  OT     -0.17823
+ATOM C1'  CT1     0.25098
+ATOM N9   NY     -0.21387
+ATOM C8   CT1     0.44405
+ATOM N7   NY     -0.21387
+ATOM C5   CT1     0.06049
+ATOM C6   CT1    -0.10907
+ATOM O6   OS     -0.46339
+ATOM N1   NY     -0.10694
+ATOM C2   CT1     0.38355
 ATOM N2   NY      0.00000
-ATOM N3   NY     -0.20991
-ATOM C4   CT1     0.38748
+ATOM N3   NY     -0.21387
+ATOM C4   CT1     0.38355
 BOND PB O1B PB O2B PB O3B PB O3A PA O1A PA O2A
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
@@ -1559,7 +1559,7 @@
 BOND PA O3 O3 PN PN O1N PN O5D O5D C5D C5D C4D
 BOND C4D O4D O4D C1D C1D C2D C2D C3D C3D C4D C2D O2D
 BOND C3D O3D C1D N1N N1N C2N C2N C3N C3N C4N C4N C5N
-BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N
+BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N O2N PN
 IMPR N6A N1A C5A C6A C7N N7N C3N O7N C7N C3N N7N O7N
 IC PN    O3    PA    O1A       0.0000    0.0000    0.0000    0.0000    0.0000
 IC PN    O3    PA    O2A       0.0000    0.0000    0.0000    0.0000    0.0000
Index: modlib/top_heav.lib
===================================================================
--- modlib/top_heav.lib	(revision 6545)
+++ modlib/top_heav.lib	(working copy)
@@ -859,33 +859,33 @@
 
 RESI GDP     -2.00000
 ATOM PB   PB      0.00000
-ATOM O1B  OT     -0.45482
-ATOM O2B  OT     -0.17493
-ATOM O3B  OT     -0.17493
+ATOM O1B  OT     -0.46339
+ATOM O2B  OT     -0.17823
+ATOM O3B  OT     -0.17823
 ATOM PA   PA      0.00000
-ATOM O1A  OT     -0.45482
-ATOM O2A  OT     -0.17493
-ATOM O3A  OS     -0.46881
-ATOM O5'  OS     -0.46881
-ATOM C5'  CT1    -0.00630
-ATOM C4'  CT1     0.12223
-ATOM O4'  OS     -0.25890
-ATOM C3'  CT1     0.31857
-ATOM O3'  OT     -0.17493
-ATOM C2'  CT1     0.40959
-ATOM O2'  OT     -0.17493
-ATOM C1'  CT1     0.25356
-ATOM N9   NY     -0.20991
-ATOM C8   CT1     0.44860
-ATOM N7   NY     -0.20991
-ATOM C5   CT1     0.06111
-ATOM C6   CT1    -0.10706
-ATOM O6   OS     -0.45482
-ATOM N1   NY     -0.20991
-ATOM C2   CT1     0.38748
+ATOM O1A  OT     -0.46339
+ATOM O2A  OT     -0.17823
+ATOM O3A  OS     -0.47765
+ATOM O5'  OS     -0.47765
+ATOM C5'  CT1    -0.00642
+ATOM C4'  CT1     0.12099
+ATOM O4'  OS     -0.26377
+ATOM C3'  CT1     0.31534
+ATOM O3'  OT     -0.17823
+ATOM C2'  CT1     0.40544
+ATOM O2'  OT     -0.17823
+ATOM C1'  CT1     0.25098
+ATOM N9   NY     -0.21387
+ATOM C8   CT1     0.44405
+ATOM N7   NY     -0.21387
+ATOM C5   CT1     0.06049
+ATOM C6   CT1    -0.10907
+ATOM O6   OS     -0.46339
+ATOM N1   NY     -0.10694
+ATOM C2   CT1     0.38355
 ATOM N2   NY      0.00000
-ATOM N3   NY     -0.20991
-ATOM C4   CT1     0.38748
+ATOM N3   NY     -0.21387
+ATOM C4   CT1     0.38355
 BOND PB O1B PB O2B PB O3B PB O3A PA O1A PA O2A
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
@@ -1811,7 +1811,7 @@
 BOND PA O3 O3 PN PN O1N PN O5D O5D C5D C5D C4D
 BOND C4D O4D O4D C1D C1D C2D C2D C3D C3D C4D C2D O2D
 BOND C3D O3D C1D N1N N1N C2N C2N C3N C3N C4N C4N C5N
-BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N
+BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N O2N PN
 IMPR N6A N1A C5A C6A C7N N7N C3N O7N C7N C3N N7N O7N
 IC PN    O3    PA    O1A       0.0000    0.0000    0.0000    0.0000    0.0000
 IC PN    O3    PA    O2A       0.0000    0.0000    0.0000    0.0000    0.0000
Index: modlib/top_mccb.lib
===================================================================
--- modlib/top_mccb.lib	(revision 6545)
+++ modlib/top_mccb.lib	(working copy)
@@ -647,33 +647,33 @@
 
 RESI GDP     -2.00000
 ATOM PB   PB      0.00000
-ATOM O1B  OT     -0.45482
-ATOM O2B  OT     -0.17493
-ATOM O3B  OT     -0.17493
+ATOM O1B  OT     -0.46339
+ATOM O2B  OT     -0.17823
+ATOM O3B  OT     -0.17823
 ATOM PA   PA      0.00000
-ATOM O1A  OT     -0.45482
-ATOM O2A  OT     -0.17493
-ATOM O3A  OS     -0.46881
-ATOM O5'  OS     -0.46881
-ATOM C5'  CT1    -0.00630
-ATOM C4'  CT1     0.12223
-ATOM O4'  OS     -0.25890
-ATOM C3'  CT1     0.31857
-ATOM O3'  OT     -0.17493
-ATOM C2'  CT1     0.40959
-ATOM O2'  OT     -0.17493
-ATOM C1'  CT1     0.25356
-ATOM N9   NY     -0.20991
-ATOM C8   CT1     0.44860
-ATOM N7   NY     -0.20991
-ATOM C5   CT1     0.06111
-ATOM C6   CT1    -0.10706
-ATOM O6   OS     -0.45482
-ATOM N1   NY     -0.20991
-ATOM C2   CT1     0.38748
+ATOM O1A  OT     -0.46339
+ATOM O2A  OT     -0.17823
+ATOM O3A  OS     -0.47765
+ATOM O5'  OS     -0.47765
+ATOM C5'  CT1    -0.00642
+ATOM C4'  CT1     0.12099
+ATOM O4'  OS     -0.26377
+ATOM C3'  CT1     0.31534
+ATOM O3'  OT     -0.17823
+ATOM C2'  CT1     0.40544
+ATOM O2'  OT     -0.17823
+ATOM C1'  CT1     0.25098
+ATOM N9   NY     -0.21387
+ATOM C8   CT1     0.44405
+ATOM N7   NY     -0.21387
+ATOM C5   CT1     0.06049
+ATOM C6   CT1    -0.10907
+ATOM O6   OS     -0.46339
+ATOM N1   NY     -0.10694
+ATOM C2   CT1     0.38355
 ATOM N2   NY      0.00000
-ATOM N3   NY     -0.20991
-ATOM C4   CT1     0.38748
+ATOM N3   NY     -0.21387
+ATOM C4   CT1     0.38355
 BOND PB O1B PB O2B PB O3B PB O3A PA O1A PA O2A
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
@@ -1599,7 +1599,7 @@
 BOND PA O3 O3 PN PN O1N PN O5D O5D C5D C5D C4D
 BOND C4D O4D O4D C1D C1D C2D C2D C3D C3D C4D C2D O2D
 BOND C3D O3D C1D N1N N1N C2N C2N C3N C3N C4N C4N C5N
-BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N
+BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N O2N PN
 IMPR N6A N1A C5A C6A C7N N7N C3N O7N C7N C3N N7N O7N
 IC PN    O3    PA    O1A       0.0000    0.0000    0.0000    0.0000    0.0000
 IC PN    O3    PA    O2A       0.0000    0.0000    0.0000    0.0000    0.0000
Index: modlib/top_ca3h.lib
===================================================================
--- modlib/top_ca3h.lib	(revision 6545)
+++ modlib/top_ca3h.lib	(working copy)
@@ -435,33 +435,33 @@
 
 RESI GDP     -2.00000
 ATOM PB   PB      0.00000
-ATOM O1B  OT     -0.45482
-ATOM O2B  OT     -0.17493
-ATOM O3B  OT     -0.17493
+ATOM O1B  OT     -0.46339
+ATOM O2B  OT     -0.17823
+ATOM O3B  OT     -0.17823
 ATOM PA   PA      0.00000
-ATOM O1A  OT     -0.45482
-ATOM O2A  OT     -0.17493
-ATOM O3A  OS     -0.46881
-ATOM O5'  OS     -0.46881
-ATOM C5'  CT1    -0.00630
-ATOM C4'  CT1     0.12223
-ATOM O4'  OS     -0.25890
-ATOM C3'  CT1     0.31857
-ATOM O3'  OT     -0.17493
-ATOM C2'  CT1     0.40959
-ATOM O2'  OT     -0.17493
-ATOM C1'  CT1     0.25356
-ATOM N9   NY     -0.20991
-ATOM C8   CT1     0.44860
-ATOM N7   NY     -0.20991
-ATOM C5   CT1     0.06111
-ATOM C6   CT1    -0.10706
-ATOM O6   OS     -0.45482
-ATOM N1   NY     -0.20991
-ATOM C2   CT1     0.38748
+ATOM O1A  OT     -0.46339
+ATOM O2A  OT     -0.17823
+ATOM O3A  OS     -0.47765
+ATOM O5'  OS     -0.47765
+ATOM C5'  CT1    -0.00642
+ATOM C4'  CT1     0.12099
+ATOM O4'  OS     -0.26377
+ATOM C3'  CT1     0.31534
+ATOM O3'  OT     -0.17823
+ATOM C2'  CT1     0.40544
+ATOM O2'  OT     -0.17823
+ATOM C1'  CT1     0.25098
+ATOM N9   NY     -0.21387
+ATOM C8   CT1     0.44405
+ATOM N7   NY     -0.21387
+ATOM C5   CT1     0.06049
+ATOM C6   CT1    -0.10907
+ATOM O6   OS     -0.46339
+ATOM N1   NY     -0.10694
+ATOM C2   CT1     0.38355
 ATOM N2   NY      0.00000
-ATOM N3   NY     -0.20991
-ATOM C4   CT1     0.38748
+ATOM N3   NY     -0.21387
+ATOM C4   CT1     0.38355
 BOND PB O1B PB O2B PB O3B PB O3A PA O1A PA O2A
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
@@ -1143,7 +1143,7 @@
 BOND PA O3 O3 PN PN O1N PN O5D O5D C5D C5D C4D
 BOND C4D O4D O4D C1D C1D C2D C2D C3D C3D C4D C2D O2D
 BOND C3D O3D C1D N1N N1N C2N C2N C3N C3N C4N C4N C5N
-BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N
+BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N O2N PN
 IMPR N6A N1A C5A C6A C7N N7N C3N O7N C7N C3N N7N O7N
 IC PN    O3    PA    O1A       0.0000    0.0000    0.0000    0.0000    0.0000
 IC PN    O3    PA    O2A       0.0000    0.0000    0.0000    0.0000    0.0000
Index: modlib/top_ca.lib
===================================================================
--- modlib/top_ca.lib	(revision 6545)
+++ modlib/top_ca.lib	(working copy)
@@ -464,33 +464,33 @@
 
 RESI GDP     -2.00000
 ATOM PB   PB      0.00000
-ATOM O1B  OT     -0.45482
-ATOM O2B  OT     -0.17493
-ATOM O3B  OT     -0.17493
+ATOM O1B  OT     -0.46339
+ATOM O2B  OT     -0.17823
+ATOM O3B  OT     -0.17823
 ATOM PA   PA      0.00000
-ATOM O1A  OT     -0.45482
-ATOM O2A  OT     -0.17493
-ATOM O3A  OS     -0.46881
-ATOM O5'  OS     -0.46881
-ATOM C5'  CT1    -0.00630
-ATOM C4'  CT1     0.12223
-ATOM O4'  OS     -0.25890
-ATOM C3'  CT1     0.31857
-ATOM O3'  OT     -0.17493
-ATOM C2'  CT1     0.40959
-ATOM O2'  OT     -0.17493
-ATOM C1'  CT1     0.25356
-ATOM N9   NY     -0.20991
-ATOM C8   CT1     0.44860
-ATOM N7   NY     -0.20991
-ATOM C5   CT1     0.06111
-ATOM C6   CT1    -0.10706
-ATOM O6   OS     -0.45482
-ATOM N1   NY     -0.20991
-ATOM C2   CT1     0.38748
+ATOM O1A  OT     -0.46339
+ATOM O2A  OT     -0.17823
+ATOM O3A  OS     -0.47765
+ATOM O5'  OS     -0.47765
+ATOM C5'  CT1    -0.00642
+ATOM C4'  CT1     0.12099
+ATOM O4'  OS     -0.26377
+ATOM C3'  CT1     0.31534
+ATOM O3'  OT     -0.17823
+ATOM C2'  CT1     0.40544
+ATOM O2'  OT     -0.17823
+ATOM C1'  CT1     0.25098
+ATOM N9   NY     -0.21387
+ATOM C8   CT1     0.44405
+ATOM N7   NY     -0.21387
+ATOM C5   CT1     0.06049
+ATOM C6   CT1    -0.10907
+ATOM O6   OS     -0.46339
+ATOM N1   NY     -0.10694
+ATOM C2   CT1     0.38355
 ATOM N2   NY      0.00000
-ATOM N3   NY     -0.20991
-ATOM C4   CT1     0.38748
+ATOM N3   NY     -0.21387
+ATOM C4   CT1     0.38355
 BOND PB O1B PB O2B PB O3B PB O3A PA O1A PA O2A
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
@@ -1172,7 +1172,7 @@
 BOND PA O3 O3 PN PN O1N PN O5D O5D C5D C5D C4D
 BOND C4D O4D O4D C1D C1D C2D C2D C3D C3D C4D C2D O2D
 BOND C3D O3D C1D N1N N1N C2N C2N C3N C3N C4N C4N C5N
-BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N
+BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N O2N PN
 IMPR N6A N1A C5A C6A C7N N7N C3N O7N C7N C3N N7N O7N
 IC PN    O3    PA    O1A       0.0000    0.0000    0.0000    0.0000    0.0000
 IC PN    O3    PA    O2A       0.0000    0.0000    0.0000    0.0000    0.0000
Index: modlib/top_mcwo.lib
===================================================================
--- modlib/top_mcwo.lib	(revision 6545)
+++ modlib/top_mcwo.lib	(working copy)
@@ -523,33 +523,33 @@
 
 RESI GDP     -2.00000
 ATOM PB   PB      0.00000
-ATOM O1B  OT     -0.45482
-ATOM O2B  OT     -0.17493
-ATOM O3B  OT     -0.17493
+ATOM O1B  OT     -0.46339
+ATOM O2B  OT     -0.17823
+ATOM O3B  OT     -0.17823
 ATOM PA   PA      0.00000
-ATOM O1A  OT     -0.45482
-ATOM O2A  OT     -0.17493
-ATOM O3A  OS     -0.46881
-ATOM O5'  OS     -0.46881
-ATOM C5'  CT1    -0.00630
-ATOM C4'  CT1     0.12223
-ATOM O4'  OS     -0.25890
-ATOM C3'  CT1     0.31857
-ATOM O3'  OT     -0.17493
-ATOM C2'  CT1     0.40959
-ATOM O2'  OT     -0.17493
-ATOM C1'  CT1     0.25356
-ATOM N9   NY     -0.20991
-ATOM C8   CT1     0.44860
-ATOM N7   NY     -0.20991
-ATOM C5   CT1     0.06111
-ATOM C6   CT1    -0.10706
-ATOM O6   OS     -0.45482
-ATOM N1   NY     -0.20991
-ATOM C2   CT1     0.38748
+ATOM O1A  OT     -0.46339
+ATOM O2A  OT     -0.17823
+ATOM O3A  OS     -0.47765
+ATOM O5'  OS     -0.47765
+ATOM C5'  CT1    -0.00642
+ATOM C4'  CT1     0.12099
+ATOM O4'  OS     -0.26377
+ATOM C3'  CT1     0.31534
+ATOM O3'  OT     -0.17823
+ATOM C2'  CT1     0.40544
+ATOM O2'  OT     -0.17823
+ATOM C1'  CT1     0.25098
+ATOM N9   NY     -0.21387
+ATOM C8   CT1     0.44405
+ATOM N7   NY     -0.21387
+ATOM C5   CT1     0.06049
+ATOM C6   CT1    -0.10907
+ATOM O6   OS     -0.46339
+ATOM N1   NY     -0.10694
+ATOM C2   CT1     0.38355
 ATOM N2   NY      0.00000
-ATOM N3   NY     -0.20991
-ATOM C4   CT1     0.38748
+ATOM N3   NY     -0.21387
+ATOM C4   CT1     0.38355
 BOND PB O1B PB O2B PB O3B PB O3A PA O1A PA O2A
 BOND PA O3A PA O5' O5' C5' C5' C4' C4' O4' C4' C3'
 BOND O4' C1' C3' O3' C3' C2' C2' O2' C2' C1' C1' N9
@@ -1475,7 +1475,7 @@
 BOND PA O3 O3 PN PN O1N PN O5D O5D C5D C5D C4D
 BOND C4D O4D O4D C1D C1D C2D C2D C3D C3D C4D C2D O2D
 BOND C3D O3D C1D N1N N1N C2N C2N C3N C3N C4N C4N C5N
-BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N
+BOND C5N C6N C6N N1N C3N C7N C7N O7N C7N N7N O2N PN
 IMPR N6A N1A C5A C6A C7N N7N C3N O7N C7N C3N N7N O7N
 IC PN    O3    PA    O1A       0.0000    0.0000    0.0000    0.0000    0.0000
 IC PN    O3    PA    O2A       0.0000    0.0000    0.0000    0.0000    0.0000
Index: modlib/top.lib
===================================================================
--- modlib/top.lib	(revision 6545)
+++ modlib/top.lib	(working copy)
@@ -2159,6 +2159,7 @@
 BOND C6 O6
 BOND C6 N1
 BOND N1 C2
+BOND N1 HN1
 BOND C2 N2
 BOND C2 N3
 BOND N3 C4
@@ -5083,7 +5084,7 @@
 BOND C3D O3D      O3D HO3N      C4D H4D      C1D N1N       N1N  C2N
 BOND C2N  C3N       C3N  C4N       C4N  C5N       C5N  C6N       C6N  N1N
 BOND C2N  H2N       C3N  C7N       C7N  O7N       C7N  N7N       N7N  H71N
-BOND N7N  H72N      C4N  H4N       C5N  H5N       C6N  H6N
+BOND N7N  H72N      C4N  H4N       C5N  H5N       C6N  H6N       O2N  PN
 ! adenine impropers
 IMPH H62A C6A  H61A N6A       N6A  N1A  C5A  C6A       H2A  N1A  N3A  AC2
 IMPH H8A  N7A  N9A  AC8
