Intron

Intron Latest News

Scientists visually tracked an RNA intron jumping from a predator to its prey, revealing insights into gene transfer across species.

About Intron

• In some genes, not all of the DNA sequence is used to make protein.
• Introns are noncoding sections of an RNA transcript, or the DNA encoding it, that are spliced out before the RNA molecule is translated into a protein. 
• The sections of DNA (or RNA) that code for proteins are called exons. 
• Following transcription, new, immature strands of messenger RNA, called pre-mRNA, may contain both introns and exons. 
• The pre-mRNA molecule thus goes through a modification process in the nucleus called splicing during which the noncoding introns are cut out and only the coding exons remain. 
• Splicing produces a mature messenger RNA molecule that is then translated into a protein. 
• Introns are also referred to as intervening sequences. 
• The length of introns differs among species and genes in the same species; mammals and flowering plants have multiple introns and are longer than exons. 
• Introns may contain sequences that regulate how genes are expressed or transcribed and how mRNA is processed.

News: TH

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