AAAA - https://pubs.acs.org/doi/pdf/10.1021/ct501025q CAAU - https://pubs.acs.org/doi/pdf/10.1021/ct501025q CCCC - https://pubs.acs.org/doi/pdf/10.1021/bi3010347 GACC - https://pubs.acs.org/doi/pdf/10.1021/jp2016006, https://pubs.acs.org/doi/pdf/10.1021/ct501025q UUUU - https://pubs.acs.org/doi/pdf/10.1021/ct501025q UCAAUC - https://pubs.acs.org/doi/full/10.1021/acs.jctc.9b00912 UCUCGU - https://pubs.acs.org/doi/pdf/10.1021/acs.jctc.1c00643