Journal: RNA Biology
Article Title: Production of MarathonRT and its comparison with commercial reverse transcriptases for tRNA sequencing library preparation
doi: 10.1080/15476286.2026.2720028
Figure Lengend Snippet: tRNA column and gel extraction for sequencing. (A) schematic overview of the tRNA silica-based spin column purification process. First, the total RNA sample is mixed with long RNA binding buffer (LBB) and bound to the first column. The flowthrough will contain RNAs < 120 bp. This flowthrough is mixed with short RNA binding buffer (SBB) and bound to the second column. The RNA bound to the column is then washed with a chaotropic wash (CW), ethanol wash (EW) and eluted with ultra-pure water. DA/DPH denotes deacylated and dephosphorylated total RNA and encircled roman numerals I and II correspond to eluates from column I and II, respectively. (B–D) RNA samples analysed on 8–10% denaturing urea-PAA gels. Marker: low‑range ssRNA (NEB). Bands corresponding to 5.8S and 5S rRNA are indicated. (B) binding capacity of Monarch RNA Cleanup columns (10 μg, NEB) loaded with 10, 5, or 2.5 µg total RNA. 50 ng RNA loaded to gel from column I and II eluates. input – total RNA post-phenol/BCP extraction; DA/DPH – deacylated and dephosphorylated total RNA; CTRL – only dephosphorylated total RNA; I/II – eluates from column I and II. (C) urea-PAA analysis of eluate from column I and II. Note removal of rRNA in eluate II. Equal volumes were loaded of both column eluates. (D) column enriched and gel-extracted tRNA used in the tRNA-seq library preparation. (E) PCA clustering of sequenced samples ( n = 48). Encircled areas correspond to column enriched tRNA (green ellipse) or gel-extracted tRNA (black ellipse). (F) correlation of normalized peak heights of global tRNA modifications detected by LC-MS between extraction methods (log 2 scale; column extraction n = 5, gel extraction n = 3). Pearson’s r = 0.9998, R 2 = 0.9995.
Article Snippet: Marker: low‐range ssRNA (NEB).
Techniques: Gel Extraction, Sequencing, Purification, RNA Binding Assay, Marker, Binding Assay, Extraction, Analysis, Liquid Chromatography with Mass Spectroscopy