DasGupta Engineers Ribozyme to Repair Broken RNA, Advancing 4-Billion-Year Origins-of-Life Theory
Updated
Updated · sflorg.com · Jul 13
DasGupta Engineers Ribozyme to Repair Broken RNA, Advancing 4-Billion-Year Origins-of-Life Theory
1 articles · Updated · sflorg.com · Jul 13
Summary
A Nature Communications study reports an engineered ribozyme that selectively finds broken RNA ends and pastes fragments back together without proteins, offering a plausible RNA-only repair mechanism for early life.
The enzyme distinguishes damaged strands by targeting terminal phosphate groups, while ignoring intact RNA that ends in hydroxyl groups—a chemical selectivity that could preserve RNA genomes under stress.
DasGupta’s team uncovered the ribozyme through in vitro evolution from trillions of RNA molecules after unexpected results in a separate project, then linked it to a key missing piece in the RNA World hypothesis.
Broken RNA is common in viral infections and some cancers, yet standard sequencing often misses it; the ribozyme could help tag or isolate cleaved strands for diagnostic analysis.
The group is now working to improve reaction efficiency and expand target range, aiming to turn an origins-of-life finding into a biotechnology tool.
How will this RNA 'super-glue' revolutionize the detection of hidden diseases like cancer?
Beyond medicine, could this self-repairing RNA inspire new resilient nanomaterials or data storage?
Could a self-repairing molecule like this have truly survived the harsh conditions of early Earth?
RNA Repair Ribozyme Discovered: Transforming Our Understanding of Life’s Origins and Disease Diagnostics
Overview
A team led by Saurja DasGupta at the University of Notre Dame has made a major breakthrough by engineering a ribozyme that can repair broken RNA strands. Discovered during experiments exploring the origins of RNA-based life, this ribozyme works by selectively binding to terminal phosphate groups on damaged RNA and catalyzing a ligation reaction to mend the break. This finding not only provides new clues about how early life may have maintained its genetic material but also offers a promising solution for detecting and analyzing broken RNA in modern diagnostics, marking a pivotal advance in both ancient biology and biotechnology.