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Correction of an RNA clash and backbone-conformer outlier. Suite 77 of the archaeal 5S RNA (82; 1S72 and other Haloarcula marismortui 50S ribosomal structures) has an all-atom steric clash of >1.0Å overlap and is a suite-conformer outlier (!!). When corrected to a 5z conformer it gains a backbone H-bond (green dots), fits the density a bit better, and matches the usual S-motif conformer string of 1a,5z,4s,#a,1a (44).
