Table 2.

Experimental and theoretical collision cross sections (Ų) of the d(CG)_n duplexes [92].

		Theorya
Duplex	Expt	Globular	A-helix	B-helix	Z-helix
[4mer + Na − 4H]3−	352		407	392	405
[6mer − 3H]3−	430		533	515	502
[8mer + Na − 5H]4−	536, 667			643	654
[10mer − 5H]5−	718	640		783	763
[14mer − 7H]7−	1006
[14mer − 9H]9−	1013	850		1034	1035
[14mer + NH4 − 8H]7−	1011
[18mer − 9H]9−	1268
[18mer − 11H]11−	1272	991		1221	1205
[18mer + NH4 − 10H]9−	1265

^aThe assigned structures from the theoretical modeling are enclosed in boxes.