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Cameron V. Swenson on Muck Rack

Cameron V. Swenson

As seen in: Nature, BioRxiv
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Articles

Monitoring monomer-specific acyl-tRNA levels in cells with PARTI

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By Carly K. Schissel, Isabella Goss, Cameron V. Swenson, Meghan A. Pressimone
| BioRxiv
Abstract We describe a new assay that reports directly on the acylation state of a user-chosen tRNA in cells. We call this assay 3-Prime Adenosine-Retaining Aminoacyl-tRNA Isolation (PARTI). It relies on high-resolution mass spectrometry identification of the acyl-adenosine species released upon RNase A cleavage of isolated cellular tRNA.
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Expanding the substrate scope of pyrrolysyl-transfer RNA synthetase enzymes to include non-α-amino acids in vitro and in vivo - Nature Chemistry

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By Riley Fricke, Cameron V. Swenson, Leah Roe, Noah Xue Hamlish, Zhongqi Zhang, Sarah S. Smaga, Christine Gee, Abhishek Chatterjee
| Nature Verified
Abstract The absence of orthogonal aminoacyl-transfer RNA (tRNA) synthetases that accept non-l-α-amino acids is a primary bottleneck hindering the in vivo translation of sequence-defined hetero-oligomers and biomaterials. Here we report that pyrrolysyl-tRNA synthetase (PylRS) and certain PylRS variants accept α-hydroxy, α-thio and N-formyl-l-α-amino acids, as well as α-carboxy acid monomers that are precursors to polyketide natural products.
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