C4′-modified ribonucleotides have recently attracted great interests.[1] C4′ modifications introduce stereoelectronic effect and thus modulate the conformation of the ribose,without losing the 2′-OH.
The discovery of dynamic and reversible modifications in messenger RNA(mRNA)is opening new directions in RNA modification-mediated regulation of biological processes.
Unnatural monosaccharides such as azidosugars that can be metabolically incorporated into cellular glycans are currently used as a major tool for glycan imaging and glycoproteomic profiling.
Formaldehyde(FA)has long been considered as a toxin and carcinogen due to its damaging effects to biological macromolecules,but its beneficial roles have been increasingly appreciated lately[1].