Lluis Ribas de Pouplana

Lluis Ribas de Pouplana
Name	Lluis Ribas de Pouplana
Birth date	1950s
Birth place	Barcelona, Catalonia
Nationality	Spanish
Fields	Molecular Biology; Biochemistry; Genetics
Workplaces	Universitat de Barcelona; Scripps Research Institute; National Autonomous University of Mexico
Alma mater	Universitat de Barcelona; University of California, San Diego
Known for	Transfer RNA modifications; tRNA synthetases; Epitranscriptomics
Awards	Premio Rey Jaime I; EMBO Membership; Narcís Monturiol Medal

Lluis Ribas de Pouplana is a Catalan-born molecular biologist noted for pioneering work on transfer RNA modifications, tRNA synthetases, and the role of tRNA in translation and disease. His research spans institutions such as the Universitat de Barcelona, Scripps Research Institute, and collaborations with laboratories at the National Autonomous University of Mexico and University of California, San Diego. He has contributed to the fields intersecting with RNA, ribosome, translation (biology), epitranscriptomics, and mitochondrion dysfunction in human disease.

Early life and education

Born in Barcelona, Catalonia, he completed undergraduate studies at the Universitat de Barcelona before undertaking doctoral research that brought him into contact with laboratories associated with University of California, San Diego and research groups connected to European Molecular Biology Laboratory networks. During his formative years he trained under mentors linked to institutions such as Centro de Investigación Príncipe Felipe and collaborated with researchers from Consejo Superior de Investigaciones Científicas laboratories. His doctoral and postdoctoral training exposed him to techniques developed at Cold Spring Harbor Laboratory, Max Planck Institute for Biophysical Chemistry, and laboratories influenced by the work of Frederick Sanger, Har Gobind Khorana, and Sydney Brenner.

Academic career and appointments

Ribas de Pouplana joined the faculty of the Universitat de Barcelona where he established a research group integrating approaches from biochemistry, structural biology, genetics, and cell biology to study tRNA function. He has been affiliated with international centers including the Scripps Research Institute and maintained collaborations with teams at the University of Oxford, Harvard University, and Massachusetts Institute of Technology. His laboratory attracted visiting scientists from institutions such as European Molecular Biology Organization, National Institutes of Health, and the Max Planck Society, and he served on advisory boards for platforms including the Gordon Research Conferences, EMBO Workshop series, and funding panels for the European Research Council.

Research contributions and discoveries

Ribas de Pouplana's laboratory elucidated biochemical pathways for post-transcriptional modifications of transfer RNA, clarifying roles of modifications at the wobble position and their impact on codon recognition by the ribosome and aminoacyl-tRNA synthetase fidelity. His group characterized enzymes responsible for tRNA modifications related to thiolation and methylation, connecting defects in these pathways to mitochondrial disorders and neurodegenerative phenotypes observed in clinics associated with institutions such as Hospital Clínic de Barcelona and centers studying Leigh syndrome and mitochondrial encephalomyopathies.

He made seminal contributions to understanding how altered tRNA modifications influence translational frameshifting, ribosomal pausing, and proteostasis pathways linked to Parkinson's disease, Alzheimer's disease, and Charcot–Marie–Tooth disease. By integrating mass spectrometry techniques pioneered at Scripps Research Institute with genetic approaches from groups at University of Cambridge and Columbia University, his team mapped modification landscapes across species including yeast models used at Whitehead Institute and mammalian systems studied at Johns Hopkins University.

His work also engaged with the biology of tRNA-derived fragments and their regulatory roles in stress responses, intersecting with research communities studying microRNA pathways, stress granules, and the unfolded protein response laboratories at Institute of Cancer Research. Collaborations with structural groups at European Synchrotron Radiation Facility and Diamond Light Source advanced mechanistic models of tRNA recognition by modification enzymes and synthetases, influencing subsequent studies on translational control by research teams at Stanford University and ETH Zurich.

Awards and honors

Ribas de Pouplana's contributions earned recognition including election to EMBO membership, national awards such as the Narcís Monturiol Medal and the Premio Rey Jaime I, and prizes given by scientific societies linked to the Real Academia de Ciencias Exactas, Físicas y Naturales. He received fellowships and grants from the European Research Council, the Fundación Ramón Areces, and national agencies including the Ministerio de Ciencia e Innovación. He has been an invited speaker at major conferences such as the RNA Society Meeting, Gordon Research Conferences on translation, and symposiums hosted by Cold Spring Harbor Laboratory.

Selected publications and legacy

His selected publications include experimental and review articles in journals associated with Nature, Science, Cell, Proceedings of the National Academy of Sciences, EMBO Journal, and specialized outlets such as Nucleic Acids Research and RNA (journal). Key papers from his laboratory addressed the enzymology of tRNA modifications, links between tRNA dysregulation and human disease, and the evolution of tRNA modification systems across bacteria, archaea, and eukarya, influencing research programs at Wellcome Trust Sanger Institute and stimulating translational efforts at biotechnology companies in the biopharmaceutical sector, with partnerships involving clinical groups at Hospital Universitari Vall d'Hebron.

His legacy includes training a generation of researchers who continued work at institutions like University of California, Berkeley, University of Toronto, and Imperial College London, and contributions to consortia mapping the epitranscriptome coordinated with centers such as European Molecular Biology Laboratory and the Max Planck Institute for Molecular Genetics. Through mentorship, collaborative infrastructure, and scholarship, his body of work remains central to contemporary studies of RNA biology, translational control, and mitochondrial pathology.

Category:Spanish biologists