What is meant by post-transcriptional control?
Post-transcriptional regulation is the control of gene expression at the RNA level. It occurs once the RNA polymerase has been attached to the gene’s promoter and is synthesizing the nucleotide sequence.
What is an example of post-translational control?
Such post-translational modifications are generally reversible, one enzyme adds the modifying group and another can remove it. For example, proteins are phosphorylated by enzymes known as protein kinases, while protein phosphotases remove such phosphate groups.
Which is an example of post-transcriptional control of gene expression?
In Summary: Post-TransCRIPTIONAL Control of Gene Expression Post-transcriptional control can occur at any stage after transcription, including RNA splicing, nuclear shuttling, and RNA stability. Once RNA is transcribed, it must be processed to create a mature RNA that is ready to be translated.
What are post-transcriptional and post translational process?
Post-transcriptional mechanisms based on alternative splicing and RNA processing, as well as RNA silencing define the actual transcriptome supporting the cold stress response. Post-translational modifications such as ubiquitination and sumoylation regulate the activity of preexisting molecules.
What are post-transcriptional factors?
Post-transcriptional factors include: RNA-binding proteins (RBPs), ribosomal proteins (RPs), micro-RNAs (miRNAs), and long non-coding RNAs (lncRNAs). Recent evidence that will be presented here suggests that these factors also play a crucial role in the generation of the neocortical layers.
What are post-transcriptional and post-translational process?
Which of the following is involved in post-transcriptional control?
Which of the following are involved in post-transcriptional control? Answer d. All of the above (control of RNA splicing, RNA shuttling, and RNA stability) are involved in post-transcriptional control.
Why is post-transcriptional processing important?
Without post-transcriptional processing, protein synthesis could be significantly slowed, since it would take longer for translation machinery to recognize RNA molecules and significantly more RNA would have to be unnecessarily translated to achieve the same results.
Which of the following is are involved in post-transcriptional control?
What are the three types of post-transcriptional processing?
In this section, we will discuss the three processes that make up these post- transcriptional modifications: 5′ capping, addition of the poly A tail, and splicing.