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  1. AU="Malley, Kaitlin"
  2. AU="Altahawi, Faysal"
  3. AU="Baolian Yi"
  4. AU="Valdes-Hernández, Jorge"
  5. AU="Caughlin, T Trevor"
  6. AU="Serena Montalbano"
  7. AU="Morroni, Gianluca"
  8. AU="Choi, Kristal S."
  9. AU="Verma, Smita Rastogi" AU="Verma, Smita Rastogi"
  10. AU="Zhou, Bingfeng"
  11. AU="Kivala, Milan"
  12. AU="Salafia, O S"
  13. AU="Taghavi, Fouad J"
  14. AU="Xiao, Jun-Hua"
  15. AU="Vee Sin Lee, Peter"
  16. AU="Zhu, Yali"
  17. AU="Jiang-Qi Liu"
  18. AU="Moores, Roxanna"

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  1. Artikel ; Online: A Pain in the Eye.

    O'Malley, Kaitlin / Jumper, Stephen

    American family physician

    2024  Band 109, Heft 2, Seite(n) 179–180

    Mesh-Begriff(e) Humans ; Neuralgia ; Eye Pain/diagnosis ; Eye Pain/etiology ; Dry Eye Syndromes
    Sprache Englisch
    Erscheinungsdatum 2024-02-20
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 412694-4
    ISSN 1532-0650 ; 0002-838X ; 0572-3612
    ISSN (online) 1532-0650
    ISSN 0002-838X ; 0572-3612
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Enhanced Directed Evolution in Mammalian Cells Yields a Hyperefficient Pyrrolysyl tRNA for Noncanonical Amino Acid Mutagenesis.

    Jewel, Delilah / Kelemen, Rachel E / Huang, Rachel L / Zhu, Zeyu / Sundaresh, Bharathi / Malley, Kaitlin / Pham, Quan / Loynd, Conor / Huang, Zeyi / van Opijnen, Tim / Chatterjee, Abhishek

    Angewandte Chemie (International ed. in English)

    2024  Band 63, Heft 9, Seite(n) e202316428

    Abstract: Heterologous tRNAs used for noncanonical amino acid (ncAA) mutagenesis in mammalian cells typically show poor activity. We recently introduced a virus-assisted directed evolution strategy (VADER) that can enrich improved tRNA mutants from naïve libraries ...

    Abstract Heterologous tRNAs used for noncanonical amino acid (ncAA) mutagenesis in mammalian cells typically show poor activity. We recently introduced a virus-assisted directed evolution strategy (VADER) that can enrich improved tRNA mutants from naïve libraries in mammalian cells. However, VADER was limited to processing only a few thousand mutants; the inability to screen a larger sequence space precluded the identification of highly active variants with distal synergistic mutations. Here, we report VADER2.0, which can process significantly larger mutant libraries. It also employs a novel library design, which maintains base-pairing between distant residues in the stem regions, allowing us to pack a higher density of functional mutants within a fixed sequence space. VADER2.0 enabled simultaneous engineering of the entire acceptor stem of M. mazei pyrrolysyl tRNA (tRNA
    Mesh-Begriff(e) Amino Acids/chemistry ; Amino Acyl-tRNA Synthetases/genetics ; Escherichia coli/metabolism ; RNA, Transfer/genetics ; RNA, Transfer/metabolism ; Mutagenesis
    Chemische Substanzen Amino Acids ; Amino Acyl-tRNA Synthetases (EC 6.1.1.-) ; RNA, Transfer (9014-25-9)
    Sprache Englisch
    Erscheinungsdatum 2024-01-26
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202316428
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Virus-assisted directed evolution of enhanced suppressor tRNAs in mammalian cells.

    Jewel, Delilah / Kelemen, Rachel E / Huang, Rachel L / Zhu, Zeyu / Sundaresh, Bharathi / Cao, Xiaofu / Malley, Kaitlin / Huang, Zeyi / Pasha, Muhammad / Anthony, Jon / van Opijnen, Tim / Chatterjee, Abhishek

    Nature methods

    2022  Band 20, Heft 1, Seite(n) 95–103

    Abstract: Site-specific incorporation of unnatural amino acids (Uaas) in living cells relies on engineered aminoacyl-transfer RNA synthetase-tRNA pairs borrowed from a distant domain of life. Such heterologous suppressor tRNAs often have poor intrinsic activity, ... ...

    Abstract Site-specific incorporation of unnatural amino acids (Uaas) in living cells relies on engineered aminoacyl-transfer RNA synthetase-tRNA pairs borrowed from a distant domain of life. Such heterologous suppressor tRNAs often have poor intrinsic activity, presumably due to suboptimal interaction with a non-native translation system. This limitation can be addressed in Escherichia coli using directed evolution. However, no suitable selection system is currently available to do the same in mammalian cells. Here we report virus-assisted directed evolution of tRNAs (VADER) in mammalian cells, which uses a double-sieve selection scheme to facilitate single-step enrichment of active yet orthogonal tRNA mutants from naive libraries. Using VADER we developed improved mutants of Methanosarcina mazei pyrrolysyl-tRNA, as well as a bacterial tyrosyl-tRNA. We also show that the higher activity of the most efficient mutant pyrrolysyl-tRNA is specific for mammalian cells, alluding to an improved interaction with the unique mammalian translation apparatus.
    Mesh-Begriff(e) RNA, Transfer/genetics ; RNA, Transfer/metabolism ; Amino Acyl-tRNA Synthetases/genetics ; Amino Acyl-tRNA Synthetases/chemistry ; Amino Acyl-tRNA Synthetases/metabolism
    Chemische Substanzen RNA, Transfer (9014-25-9) ; Amino Acyl-tRNA Synthetases (EC 6.1.1.-)
    Sprache Englisch
    Erscheinungsdatum 2022-12-22
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2169522-2
    ISSN 1548-7105 ; 1548-7091
    ISSN (online) 1548-7105
    ISSN 1548-7091
    DOI 10.1038/s41592-022-01706-w
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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