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2.) Chen, M.C., et al., 2018. Structural basis of G-quadruplex unfolding by the DEAH/RHA helicase DHX36. Nature 558: 465-481. 

3.) Protein identification and analysis tools on the ExPASy server. Gasteiger, E. et. al. In J. M. Walker (Ed.) The proteomics protocols handbook. Totowa, New Jersey: Humana Press Inc. 2005. 

4.) PDB: Protein Data Bank. https://www.rcsb.org/structure/5vhd 

5.) Tauchert, M.J., et al., 2017. Structural insights into the mechanism of the DEAH-box RNA helicase Prp43. eLife 6: 1-25. 

6.) Burge, S., et al., 2006. Quadruplex DNA: sequence, topology and structure. Nucleic Acids Res 34: 5402-5415. 

7.) Xiao, C., et al., 2017. Antiparallel RNA G-quadruplex Formed by Human Telomere RNA Containing 8-Bromoguanosine. Scientific Reports 7: 1-8. 

8.) He, Y., et al., 2018. Structure of the DEAH/RHA ATPase Prp43p bound to RNA implicates a pair of hairpins and motif Va in translocation along RNA. RNA 23: 1110-1124. 

9.) Basic Local Alignment Search Tool. National Center for Biotechnology Information. 2012. http://www.ncbi.nlm.nih.gov/blast/Blast.cgi 

10.) Dali server: conservation mapping in 3D. Nucl. Acids Res. 38, W545-549. Holm L, Rosenström, P. 2010. 

11.) Pietrzyk-Brzezinska, A.J., et al., 2018. Crystal Structure of the Escherichia coli DExH-Box NTPase HrpB. Structure 26: 1-12.