Structure-activity relationships in human RNA 3'-phosphate cyclase
نویسندگان
چکیده
منابع مشابه
Structure of RNA 3'-phosphate cyclase bound to substrate RNA.
RNA 3'-phosphate cyclase (RtcA) catalyzes the ATP-dependent cyclization of a 3'-phosphate to form a 2',3'-cyclic phosphate at RNA termini. Cyclization proceeds through RtcA-AMP and RNA(3')pp(5')A covalent intermediates, which are analogous to intermediates formed during catalysis by the tRNA ligase RtcB. Here we present a crystal structure of Pyrococcus horikoshii RtcA in complex with a 3'-phos...
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BACKGROUND RNA cyclases are a family of RNA-modifying enzymes that are conserved in eucarya, bacteria and archaea. They catalyze the ATP-dependent conversion of the 3'-phosphate to the 2',3'-cyclic phosphodiester at the end of RNA, in a reaction involving formation of the covalent AMP-cyclase intermediate. These enzymes might be responsible for production of the cyclic phosphate RNA ends that a...
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ژورنال
عنوان ژورنال: RNA
سال: 2009
ISSN: 1355-8382
DOI: 10.1261/rna.1771509