pspPhe-RS (pCNF-RS ; pAzF-RS)

RS/tRNA Foundational Publication Support

Miyake-Stoner, Shigeki J, Andrew M Miller, Jared T Hammill, Jennifer C Peeler, Kenneth R Hess, Ryan A Mehl, and Scott H Brewer. (2009) 2009. “Probing Protein Folding Using Site-Specifically Encoded Unnatural Amino Acids As Fret Donors With Tryptophan.”. Biochemistry 48 (25): 5953-62. doi:10.1021/bi900426d.

Beyer, Jenna N, Parisa Hosseinzadeh, Ilana Gottfried-Lee, Elise M Van Fossen, Phillip Zhu, Riley M Bednar, Andrew Karplus, Ryan A Mehl, and Richard B Cooley. (2020) 2020. “Overcoming Near-Cognate Suppression In A Release Factor 1-Deficient Host With An Improved Nitro-Tyrosine Trna Synthetase.”. Journal Of Molecular Biology 432 (16): 4690-4704. doi:10.1016/j.jmb.2020.06.014.

RS/tRNA Usage Publications

Bednar, Riley M, Subhashis Jana, Sahiti Kuppa, Rachel Franklin, Joseph Beckman, Edwin Antony, Richard B Cooley, and Ryan A Mehl. (2021) 2021. “Genetic Incorporation Of Two Mutually Orthogonal Bioorthogonal Amino Acids That Enable Efficient Protein Dual-Labeling In Cells.”. Acs Chemical Biology 16 (11): 2612-2622. doi:10.1021/acschembio.1c00649.

RS/tRNA Pair Development Year
2009

ncAA(s) Incorporated

p-azido-L-phenylalanine (pAzF)

ncAA Structure (png, jpg, jpeg)
Image showing the ChemDraw Structure of p-azido-l-phenylalanine (pAzF)
ncAA Utility
Used as a photocrosslinker, allowing for crosslinking and bioorthogonal ligation of protein.


RS Organism of Origin
Parent RS
RS Mutations
Y32L
L65V
F108W
Q109M
D158G
I159P

tRNA Organism of Origin
Parent tRNA
tRNA Anticodon
CUA
Other tRNA Mutations
C17A
U17aG
U20C
G37A
U47G
Multiple tRNAs?
N/a

RS/tRNA Availability
On pDule plasmid as Addgene #85494
On pDule2 plasmid as Addgene #85495
On pEVOL plasmid as Addgene #164579 designed for use in dual encoding applications involving pAzido-Phe (from 2021 Bednar et al application paper)
Used in what cell line?

RS/tRNA Additional Notes
"psp-Phe RS" (i.e. an RS incorporating multiple "sp" hybridized para-substituents on Phe) selections led to an RS incorporating both para-cyano-Phe (pCNF) and pENPhe. With 1 mM L-pCNF generated T4 lysozyme(153) at ~7.5 mg/L (~25% effciency). With 1 mM racemic pENPhe, yielded 23 mg/L protein (~75% efficiency). Full fidelity was confirmed by MS.

Shown in 2019 foundational paper show to also produce full-fidelity incorporation of pAzF into sfGFP(150) in the truncation free B95 RF1- E coli strain.