18S rRNA aminocarboxypropyltransferase activity (Q112998209)
Catalysis of the reaction: N1-methylpseudouridine in 18S rRNA + S-adenosyl-L-methionine = H+ + N1-methyl-N3-[(3S)-3-amino-3-carboxypropyl]pseudouridine in 18S rRNA + S-methyl-5'-thioadenosine.
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description Catalysis of the reaction: N1-methylpseudouridine in 18S rRNA + S-adenosyl-L-methionine = H+ + N1-methyl-N3-[(3S)-3-amino-3-carboxypropyl]pseudouridine in 18S rRNA + S-methyl-5'-thioadenosine.

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