tRNA 4-demethylwyosine alpha-amino-alpha-carboxypropyltransferase activity
Catalysis of the reaction: S-adenosyl-L-methionine + 4-demethylwyosine37 in tRNAPhe = 5'-S-methyl-5'-thioadenosine + H+ + 7-[(3S)-3-amino-3-carboxypropyl]-4-demethylwyosine37 in tRNAPhe.
GO:0016765
transferase activity, transferring alkyl or aryl (other than methyl) groups
is_a
GO:0140101
catalytic activity, acting on a tRNA
is_a
SPAC4G8.06c