How Cells Control Gene Expression

Cells control gene expression at several stages, from making RNA to building protein. These checkpoints include transcription, RNA processing, RNA localization, and translation. Together, they help decide when a gene is used and whether a protein is made.

Transcription is controlled by regulatory...

Cells precisely regulate gene expression during transcription, mRNA processing, and translation.

Transcriptional regulation can be mediated by proteins that bind regulatory sequences on DNA to inhibit or initiate the transcription of a specific gene.

Precursor mRNAs generated by transcription are modified by the addition of a 5-pri...