A small polymerase ribozyme that can synthesize itself and its complementary strand
原文开头
Edoardo Gianni1*, Samantha L. Y. Kwok1, Christopher J. K. Wan1†, Kevin Goeij1, Bryce E. Clifton1, Enrico S. Colizzi2, James Attwater1‡, Philipp Holliger1* The emergence of a chemical system capable of self-replication and evolution is a critical event in the origin of life. RNA polymerase ribozymes can replicate RNA, but their large size and structural complexity impede self-replication and preclude their spontaneous emergence. Here, we describe QT45, a 45-nucleotide polymerase ribozyme, discovered from random sequence pools, that catalyzes general RNA-templated RNA synthesis using trinucleotide triphosphate (triplet) substrates in mildly alkaline eutectic ice. …
摘自《科学》(Science)第391卷 第6789期 · 2026年3月5日。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。