How does RNA move from the nucleus to the cytoplasm?
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How does RNA move from the nucleus to the cytoplasm?
The transport of RNA molecules from the nucleus to the cytoplasm is fundamental for gene expression. The different RNA species that are produced in the nucleus are exported through the nuclear pore complexes via mobile export receptors.
What happens to RNA after it leaves the nucleus?
Transcription takes place in the nucleus. It uses DNA as a template to make an RNA molecule. RNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. Translation reads the genetic code in mRNA and makes a protein.
What happens to RNA in the cytoplasm?
The mRNA molecules are transported through the nuclear envelope into the cytoplasm, where they are translated by the rRNA of ribosomes (see translation). Messenger RNA (mRNA) then travels to the ribosomes in the cell cytoplasm, where protein synthesis occurs (Figure 3).
How does RNA get to the cytoplasm?
Is RNA found in the nucleus and cytoplasm?
There are two types of nucleic acids which are polymers found in all living cells. Deoxyribonucleic Acid (DNA) is found mainly in the nucleus of the cell, while Ribonucleic Acid (RNA) is found mainly in the cytoplasm of the cell although it is usually synthesized in the nucleus.
Can RNA get into the nucleus?
Transcription of genes, processing of various RNAs and replication and repair of DNA occur in the nucleus, whereas translation of proteins exclusively takes place on the ribosomes in the cytoplasm. In addition, some types of RNAs reenter to the nucleus after being exported to the cytoplasm [1].
Does RNA splicing occur in the nucleus?
Splicing occurs in the nucleus before the RNA migrates to the cytoplasm. Once splicing is complete, the mature mRNA (containing uninterrupted coding information), is transported to the cytoplasm where ribosomes translate the mRNA into protein. The pre-mRNA transcript contains both introns and exons.
How are RNA processed before it leaves from the nucleus and enters cytoplasm?
Both exons and introns are transcribed from DNA into RNA. However before the RNA leaves the nucleus the introns are removed and the exons are joined to produce an mRNA molecule with a continuous coding sequence. The cutting-and-pasting process. RNA can sometimes act as an enzyme that removes its own introns.
Is RNA in the cytoplasm?
DNA is found mostly in the cell nucleus, but another type of nucleic acid, RNA, is common in the cytoplasm.