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Figure 1.
Figure 1: Secondary and tertiary structure of the SAM-I
riboswitch.
Figure 1 : Secondary and tertiary structure of
the SAM-I riboswitch. Unfortunately we are unable to provide
accessible alternative text for this. If you require assistance
to access this image, or to obtain a text description, please
contact npg@nature.com-
a, Secondary structure of the SAM-I riboswitch aptamer domain
reflecting the tertiary organization; nucleotides more than 95%
conserved across phylogeny are highlighted in red. Solid arrows
represent the direction of the RNA backbone, and elements of
structure are labelled as follows: P, paired; J, joining; KT,
kink-turn; PK, pseudoknot. Colours used to denote elements of
structure are consistent with subsequent figures. b, Ribbon
representation of the three-dimensional structure. The two views
represent a front view (left) and a 90° clockwise rotation
(right). SAM is in red with its surface represented as dots.
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