SGD Paper 
Nam K, et al. (1994) Yeast lariat debranching enzyme. Substrate and sequence specificity. J Biol Chem 269(32):20613-21
Abstract: Yeast RNA lariat debranching enzyme has been purified to near homogeneity using a bacterial overproducer of the enzyme. The enzyme is capable of digesting a variety of branched nucleic acid substrates, including group II intron lariats, multicopy single-stranded DNAs (msDNAs), and a variety of synthetic branched RNAs. A trinucleotide release assay using radiolabeled msDNA substrates was developed and used to determine the basic biochemical parameters for the enzyme. The debranching enzyme shows a strong preference for purines at the 2'-position in both msDNA and synthetic branched RNA substrates, in accord with the structure of its native substrate, which always has a 2'-G residue. The use of small synthetic branched RNA substrates will allow systematic mechanistic and structural studies of this unique enzyme.
| Status: Published | Type: Journal Article | PubMed ID: 7519612 |
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