RNA aptamers as tools for the purification and analysis of in vivo assembled ribonucleoproteins

TABLE 1.

RNA aptamers used in RNP purifications

RNA aptamer Ligand Ligand affinity (KD) Chromatography resin coupling Purified RNP Reference
MS2 aptamer MS2 phage coat protein fusions 7 nM Maltose binding protein + dextrin Sepharose resin Ribosome precursors, RNA regulators Said et al. 2009; Chaker-Margot et al. 2015; Zhang et al. 2016
PP7 aptamer PP7 coat protein 0.7 nM TAP-tagged protein + Igg resin SNORD27 C/D box snoRNP, 7SK RNP, telomerase Hogg and Collins 2007; Falaleeva et al. 2016; Roake et al. 2019
S1 aptamer Streptavidin 70 nM Streptavidin agarose resin Poliovirus RNA, snR30 H/ACA snoRNP Lemay et al. 2011; Leppek and Stoecklin 2014; Flather et al. 2016
S1m aptamer Streptavidin 29 nM Streptavidin agarose resin Poliovirus RNA, AU-rich element of tumor necrosis factor Leppek and Stoecklin 2014; Flather et al. 2016
Csy4 binding hairpin Csy4* protein 50 pM Biotinylated Csy4* protein-streptavidin resin Identification of microRNA binding proteins Lee et al. 2013
Sephadex D8 aptamer Sephadex (dextran) N/D Sephadex G100 resin Poliovirus RNA, isolation of test RNA for proof of concept Srisawat et al. 2001; Flather et al. 2016
Sephadex D8m aptamer Sephadex (dextran) N/D Sephadex G100 resin Poliovirus RNA Flather et al. 2016
Tobramycin aptamer (J6f1) Tobramycin antibiotic 5.15 nM Tobramycin-activated ester resin Spliceosomes Hartmuth et al. 2002
Tobramycin aptamer (J6) Tobramycin antibiotic 0.77 nM Tobramycin-activated ester resin SNORD27 C/D box snoRNP, 7SK RNP, telomerase Hogg and Collins 2007; Falaleeva et al. 2016; Roake et al. 2019
Mango II aptamer Thiazole orange (TO1) 0.7 nM Desthiobiotin-derivatized TO1-streptavidin resin U1 snoRNP Panchapakesan et al. 2017

This Article

  1. RNA 31: 1235-1247