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![[Figure 2]](rr5217fig2mag.jpg)
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Figure 2
Overview of the d(CGA)-based parallel-stranded homoduplexes. The PyMOL graphics software was used for all figures (DeLano, 2002  ). (a) The asymmetric unit for GA(CGA)5. The individual chains within each duplex (1–3) are labeled and colored accordingly. Duplex 1: chain A, cyan; chain B, blue. Duplex 2: chain C, green; chain D, yellow. Duplex 3: chain E, magenta; chain F, light pink. (b) 3′ to 5′ end stacking of duplex 1 and 2. The 3′ A17–A17 base pair of duplex 1 forms stacking interactions with the 5′ G1–G1 base pair of duplex 2 to form three tandem G/A stacking interactions. (c) The (CGA)5TGA asymmetric unit. Each chain within duplex 4 is labeled and colored accordingly: chain A (salmon), chain B (gray). |
![[Figure 2]](rr5217fig2.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
