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Fig. 2 | BMC Structural Biology

Fig. 2

From: Controlled dehydration improves the diffraction quality of two RNA crystals

Fig. 2

Comparison of the crystal packing between the AUUCU (a) and CCUG (b) crystals. The two asymmetric unit molecules of the AUUCU crystal are shown as pure and tinted colors in panel (a), and the equivalently arranged molecules in the CCUG crystal are shown with the same colors in panel (b). Tetraloop-tetraloop receptor interactions (e.g., green circled area of magenta and grey molecules in panels (a) and (b)) and the coaxial arrangement (e.g., red circled area of grey and yellow molecules in panels (a) and (b)) that appear invariant between the two crystals are shown as secondary structural drawings in panel (c). The two asymmetric molecules in the AUUCU crystal slid along the c-axis (arrows), making the interaction of the two molecules tighter than the equivalent interface in the CCUG crystal (e.g., green and light green)

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