Architecture of ribosomal RNA: constraints on the sequence of "tetra-loops" by Carl R. Woese and others 2026-11-05
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PNAS87(21),8467–8471(1990), DOI10.1073/pnas.87.21.8467. Indexed byline C. R. Woese, S. Winker and R. R. Gutell. Original Abstract identifies GNRA, UNCG and rarer CUUG loop motifs, and closing-base-pair preferences. Original article also indexed at materiais.dbio.uevora.pt/Micro/Woese.pdf ; primary archive pmc.ncbi.nlm.nih.gov/articles/PMC54977/ .
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Phylogenetic structure of the prokaryotic domain: the primary kingdoms by Carl R. Woese and George E. Fox 2026-11-05
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PNAS74(11),5088–5090(1977). Primary record pmc.ncbi.nlm.nih.gov/articles/PMC432104/ ; author full names directly verified from original-paper byline in university-hosted scan bip.weizmann.ac.il/education/course/evogen/Phylogenetics/woese.pdf . Abstract: phylogenetic distinction based on ribosomal-RNA sequence characterization. Do not describe the1977 experiment as a modern PCR amplicon survey.
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