Lilian T. Lamech

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The Neurospora crassa mitochondrial tyrosyl-tRNA synthetase (mtTyrRS; CYT-18 protein) evolved a new function as a group I intron splicing factor by acquiring the ability to bind group I intron RNAs and stabilize their catalytically active RNA structure. Previous studies showed: (i) CYT-18 binds group I introns by using both its N-terminal catalytic domain(More)
The mitochondrial tyrosyl-tRNA synthetases (mtTyrRSs) of Pezizomycotina fungi, a subphylum that includes many pathogenic species, are bifunctional proteins that both charge mitochondrial tRNA(Tyr) and act as splicing cofactors for autocatalytic group I introns. Previous studies showed that one of these proteins, Neurospora crassa CYT-18, binds group I(More)
Putative penicillin-binding proteins (PBPs) were identified in the genome of the Burkholderia cenocepacia strain J2315 based on homology to E. coli PBPs. The three sequences identified as homologs of E. coli PBP1a, BCAL2021, BCAL0274, and BCAM2632, were cloned and expressed as His6-tagged fusion proteins in E. coli. The fusion proteins were isolated and(More)
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