Figure 2.
Figure 2. A close-up view of the active-site region, derived
from the ai5 gamma
group II intron model (Supplementary Fig. 4 online). Regions
of proximity are highlighted in green (G817, D5 bulge, first
nucleotides of the 5' exon and 3' exon, and the branch site
(A880)). The scissile phosphate (yellow ball), branch site 2'-OH
(red ball) and first nucleotide of the 3' exon (gray line) are
shown. Color scheme: IBS1, purple; 5'-end of domain 1, including
,
magenta; ',
pink; coordination loop- ,
cyan; EBS1, brown; J2/3, blue; D5, red; bottom stem of D6,
orange.
The above figure is reprinted
by permission from Macmillan Publishers Ltd:
Nat Struct Mol Biol
(2005,
12,
626-627)
copyright 2005.
gamma
group II intron model (Supplementary Fig. 4 online). Regions
of proximity are highlighted in green (G817, D5 bulge, first
nucleotides of the 5' exon and 3' exon, and the branch site
(A880)). The scissile phosphate (yellow ball), branch site 2'-OH
(red ball) and first nucleotide of the 3' exon (gray line) are
shown. Color scheme: IBS1, purple; 5'-end of domain 1, including
,
magenta; 
,
cyan; EBS1, brown; J2/3, blue; D5, red; bottom stem of D6,
orange.