div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentthe-second-catalytic-step-of-pre-mrna-splicinghtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: The second catalytic step of pre-mRNA splicing loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022052406586e196f1a28ab111a8bdf4ehtml5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentthe-second-catalytic-step-of-pre-mrna-splicinghtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: The second catalytic step of pre-mRNA splicing loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022052406586e196f1a28ab111a8bdf4ehtml5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentthe-second-catalytic-step-of-pre-mrna-splicinghtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: The second catalytic step of pre-mRNA splicing loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022052406586e196f1a28ab111a8bdf4ehtml5thumbnails3jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=4Page 4button div class=trans-imageimg data-url=documentthe-second-catalytic-step-of-pre-mrna-splicinghtmlpage=4 data-page=4 class=trans-thumb lazyload alt=Page 4: The second catalytic step of pre-mRNA splicing loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...