Mutagenizing sequences enriched with promoter motifs creates gene expression de novo, and helps to understand promoter logic, regulatory evolution, and the birth of de novo genes.

A folding-function model for the guanidine-IV riboswitch under both guanidine-free and guanidine-present conditions offers valuable insights into its regulatory mechanism.

2-Oxoglutarate and Fe(II)-dependent dioxygenases from clade C23 are the major source of guanidine in plants and release guanidine from arginine or homoarginine by C5 or C6 hydroxylation, respectively.

A phage parasite encodes an external scaffolding protein to pirate and rearrange phage-encoded coat proteins to more efficiently transfer the phage parasite genome to new hosts and limit phage production.

The RNA transferome comprises full-length mRNAs and lncRNAs that undergo non-selective and expression-dependent transfer between mammalian cells in culture via actin-based tunneling nanotubes.

A high-throughput analysis of several self-cleaving ribozymes reveals the effect of every possible mutation, and every possible pair of mutations, and how patterns in the relative activity data can be mapped to canonical and non-canonical structural elements.

Under nitrogen limitation, Salmonella and Escherichia coli express a messenger RNA to translate glutamine synthetase, and concomitantly the messenger RNA produces a small RNA from its 3′ end to inhibit the translation of 2-oxoglutarate dehydrogenase of the TCA cycle.