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. 2023 Jan 27;13(2):242. doi: 10.3390/biom13020242

Figure 1.

Figure 1

Competition for binding to a UGA PTC between release factor complex, leading to peptidyl-tRNA hydrolysis and nascent peptide release (i.e., termination), and aminoacyl suppressor tRNA ternary complex, leading to readthrough. In our standard HT assay, Stop-POST5 contains FK*VRQ-tRNA in the P-site, where K* denotes a Lys residue labeled with Atto647 on the ε-amino group.