posttranscriptional

[ pohst-tran-skrip-shuh-nl ]

noun

1. Genetics, Biochemistry. occurring after the formation of RNA from DNA but before the RNA strand leaves the nucleus.

Word History and Origins

Origin of posttranscriptional¹

1965–70; post- + transcriptional ( def )

Example Sentences

Regulation of Caenorhabditis elegans vitellogenesis by DAF-2/IIS through separable transcriptional and posttranscriptional mechanisms.

From Nature

Green, R. & Noller, H. F. In vitro complementation analysis localizes 23S rRNA posttranscriptional modifications that are required for Escherichia coli 50S ribosomal subunit assembly and function.

From Nature

The secretion of epithelial IL-18 requires transcriptional activation through TLRs or the G-protein-coupled receptor GPR109a and posttranscriptional cleavage through the NLRP6 inflammasome.

From Nature

The secretion of epithelial IL-18 requires transcriptional activation through TLRs or the G-protein-coupled receptor GPR109a and posttranscriptional cleavage through the NLRP6 inflammasome.

From Nature

These results reveal a major nuclear genetic determinant of posttranscriptional modification in mitochondria and suggest that tRNA posttranscriptional modification may affect cellular energy production.

From Science Magazine