Table 2.

Optimal values for the mean end-to-end the distance, $\overline{R}$, and the associated width of the distribution, σ, describing the 5′–3′ distance distribution, P(R), for the unmodified and four modified oligomers

Sequence	$\overline{R}$(Å)a	σ (Å)
T*DNATT *F Unmodified	53.5 ± 0.2b	5.4 ± 0.1
T*DNA8ap*F	53.6 ± 0.2	5.8 ± 0.1
T*DNA7,8ap*F	52.2 ± 0.2	5.8 ± 0.1
T*DNA8apn*F	53.2 ± 0.1	5.8 ± 0.1
T*DNA7,8apn*F	54.2 ± 0.1	5.1 ± 0.1

^aEach of the five pairs of $\overline{R}$ and σ values shown in the table derives from ∼10⁶ laser shots.

^bThe five $\overline{R}$ error estimates were rounded up from 0.18 (DNA_TT), 0.15 (DNA_8ap), 0.16 (DNA_7,8ap), 0.05 (DNA_8apn) and 0.08 (DNA_7,8apn).