Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!


Index Intron

An intron is any nucleotide sequence within a gene that is removed by RNA splicing during maturation of the final RNA product. [1]

53 relations: Adenoviridae, Alternative splicing, Baker's yeast, Biochemistry, Cistron, Common descent, DNA, DNA damage (naturally occurring), Encephalitozoon cuniculi, Eukaryote, Eukaryotic chromosome fine structure, Exitron, Exon, Gene, Genetic recombination, Genome, Group I catalytic intron, Group II intron, Group III intron, Intein, Interrupted gene, Intron-mediated enhancement, LCD Soundsystem, Messenger RNA, MicroRNA, Minor spliceosome, Mitochondrial DNA, Nature (journal), Nobel Prize in Physiology or Medicine, Non-coding DNA, Non-coding RNA, Nonsense-mediated decay, Nucleic acid sequence, Nucleic acid tertiary structure, Phillip Allen Sharp, Post-transcriptional modification, Protein, R-loop, Ribosomal RNA, Ribozyme, Richard J. Roberts, RNA editing, RNA splicing, RNA world, Selfish genetic element, Small t intron, Spliceosome, Transcription (biology), Transfer RNA, Translation (biology), ..., Twintron, Untranslated region, Walter Gilbert. Expand index (3 more) »


Adenoviruses (members of the family Adenoviridae) are medium-sized (90–100 nm), nonenveloped (without an outer lipid bilayer) viruses with an icosahedral nucleocapsid containing a double stranded DNA genome.

New!!: Intron and Adenoviridae · See more »

Alternative splicing

Alternative splicing, or differential splicing, is a regulated process during gene expression that results in a single gene coding for multiple proteins.

New!!: Intron and Alternative splicing · See more »

Baker's yeast

Baker's yeast is the common name for the strains of yeast commonly used as a leavening agent in baking bread and bakery products, where it converts the fermentable sugars present in the dough into carbon dioxide and ethanol.

New!!: Intron and Baker's yeast · See more »


Biochemistry, sometimes called biological chemistry, is the study of chemical processes within and relating to living organisms.

New!!: Intron and Biochemistry · See more »


A cistron is an alternative term to a gene.

New!!: Intron and Cistron · See more »

Common descent

Common descent describes how, in evolutionary biology, a group of organisms share a most recent common ancestor.

New!!: Intron and Common descent · See more »


Deoxyribonucleic acid (DNA) is a thread-like chain of nucleotides carrying the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.

New!!: Intron and DNA · See more »

DNA damage (naturally occurring)

DNA damage is distinctly different from mutation, although both are types of error in DNA.

New!!: Intron and DNA damage (naturally occurring) · See more »

Encephalitozoon cuniculi

Encephalitozoon cuniculi is a eukaryotic organism belonging to the phylum Microsporidia, in the kingdom Fungi.

New!!: Intron and Encephalitozoon cuniculi · See more »


Eukaryotes are organisms whose cells have a nucleus enclosed within membranes, unlike Prokaryotes (Bacteria and other Archaea).

New!!: Intron and Eukaryote · See more »

Eukaryotic chromosome fine structure

Eukaryotic chromosome fine structure refers to the structure of sequences for eukaryotic chromosomes.

New!!: Intron and Eukaryotic chromosome fine structure · See more »


Exitrons (exonic introns) are produced through alternative splicing and have characteristics of both introns and exons, but are described as retained introns.

New!!: Intron and Exitron · See more »


An exon is any part of a gene that will encode a part of the final mature RNA produced by that gene after introns have been removed by RNA splicing.

New!!: Intron and Exon · See more »


In biology, a gene is a sequence of DNA or RNA that codes for a molecule that has a function.

New!!: Intron and Gene · See more »

Genetic recombination

Genetic recombination (aka genetic reshuffling) is the production of offspring with combinations of traits that differ from those found in either parent.

New!!: Intron and Genetic recombination · See more »


In the fields of molecular biology and genetics, a genome is the genetic material of an organism.

New!!: Intron and Genome · See more »

Group I catalytic intron

Group I introns are large self-splicing ribozymes.

New!!: Intron and Group I catalytic intron · See more »

Group II intron

Group II introns are a large class of self-catalytic ribozymes and mobile genetic elements found within the genes of all three domains of life.

New!!: Intron and Group II intron · See more »

Group III intron

Group III intron is a class of introns found in mRNA genes of chloroplasts in euglenid protists.

New!!: Intron and Group III intron · See more »


An intein is a segment of a protein that is able to excise itself and join the remaining portions (the exteins) with a peptide bond in a process termed protein splicing.

New!!: Intron and Intein · See more »

Interrupted gene

An interrupted gene (also called a split gene) is a gene that contains sections of DNA called exons, which are expressed as RNA and protein, interrupted by sections of DNA called introns, which are not expressed.

New!!: Intron and Interrupted gene · See more »

Intron-mediated enhancement

Intron-mediated enhancement (IME) is the ability of an intron sequence to enhance the expression of a gene containing that intron.

New!!: Intron and Intron-mediated enhancement · See more »

LCD Soundsystem

LCD Soundsystem is an American rock band from Brooklyn, New York, formed in 2002.

New!!: Intron and LCD Soundsystem · See more »

Messenger RNA

Messenger RNA (mRNA) is a large family of RNA molecules that convey genetic information from DNA to the ribosome, where they specify the amino acid sequence of the protein products of gene expression.

New!!: Intron and Messenger RNA · See more »


A microRNA (abbreviated miRNA) is a small non-coding RNA molecule (containing about 22 nucleotides) found in plants, animals and some viruses, that functions in RNA silencing and post-transcriptional regulation of gene expression.

New!!: Intron and MicroRNA · See more »

Minor spliceosome

The minor spliceosome is a ribonucleoprotein complex that catalyses the removal (splicing) of an atypical class of spliceosomal introns (U12-type) from eukaryotic messenger RNAs in plants, insects, vertebrates and some fungi (Rhizopus oryzae).

New!!: Intron and Minor spliceosome · See more »

Mitochondrial DNA

Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, adenosine triphosphate (ATP).

New!!: Intron and Mitochondrial DNA · See more »

Nature (journal)

Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.

New!!: Intron and Nature (journal) · See more »

Nobel Prize in Physiology or Medicine

The Nobel Prize in Physiology or Medicine (Nobelpriset i fysiologi eller medicin), administered by the Nobel Foundation, is awarded once a year for outstanding discoveries in the fields of life sciences and medicine.

New!!: Intron and Nobel Prize in Physiology or Medicine · See more »

Non-coding DNA

In genomics and related disciplines, noncoding DNA sequences are components of an organism's DNA that do not encode protein sequences.

New!!: Intron and Non-coding DNA · See more »

Non-coding RNA

A non-coding RNA (ncRNA) is an RNA molecule that is not translated into a protein.

New!!: Intron and Non-coding RNA · See more »

Nonsense-mediated decay

Nonsense-mediated mRNA decay (NMD) is a surveillance pathway that exists in all eukaryotes.

New!!: Intron and Nonsense-mediated decay · See more »

Nucleic acid sequence

A nucleic acid sequence is a succession of letters that indicate the order of nucleotides forming alleles within a DNA (using GACT) or RNA (GACU) molecule.

New!!: Intron and Nucleic acid sequence · See more »

Nucleic acid tertiary structure

Nucleic acid tertiary structure is the three-dimensional shape of a nucleic acid polymer.

New!!: Intron and Nucleic acid tertiary structure · See more »

Phillip Allen Sharp

Phillip Allen Sharp (born June 6, 1944) is an American geneticist and molecular biologist who co-discovered RNA splicing.

New!!: Intron and Phillip Allen Sharp · See more »

Post-transcriptional modification

Post-transcriptional modification or Co-transcriptional modification is the process in eukaryotic cells where primary transcript RNA is converted into mature RNA.

New!!: Intron and Post-transcriptional modification · See more »


Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues.

New!!: Intron and Protein · See more »


An R-loop is a three-stranded nucleic acid structure, composed of a DNA:RNA hybrid and the associated non-template single-stranded DNA.

New!!: Intron and R-loop · See more »

Ribosomal RNA

Ribosomal ribonucleic acid (rRNA) is the RNA component of the ribosome, and is essential for protein synthesis in all living organisms.

New!!: Intron and Ribosomal RNA · See more »


Ribozymes (ribonucleic acid enzymes) are RNA molecules that are capable of catalyzing specific biochemical reactions, similar to the action of protein enzymes.

New!!: Intron and Ribozyme · See more »

Richard J. Roberts

Sir Richard John Roberts (born 6 September 1943) is an English biochemist and molecular biologist.

New!!: Intron and Richard J. Roberts · See more »

RNA editing

RNA editing is a molecular process through which some cells can make discrete changes to specific nucleotide sequences within an RNA molecule after it has been generated by RNA polymerase.

New!!: Intron and RNA editing · See more »

RNA splicing

In molecular biology, splicing is the editing of the nascent precursor messenger RNA (pre-mRNA) transcript into a mature messenger RNA (mRNA).

New!!: Intron and RNA splicing · See more »

RNA world

The RNA world is a hypothetical stage in the evolutionary history of life on Earth, in which self-replicating RNA molecules proliferated before the evolution of DNA and proteins.

New!!: Intron and RNA world · See more »

Selfish genetic element

Selfish genetics elements (also sometimes called selfish DNA) are genetic sequences that spread by forming additional copies of itself within the genome; and makes no specific contribution to the reproductive success of its host organism (it might or might not have significant deleterious effects).

New!!: Intron and Selfish genetic element · See more »

Small t intron

Plasmid vectors are circular strands of DNA found in virions that are used in genetic engineering to integrate new genes into a host cell genome.

New!!: Intron and Small t intron · See more »


A spliceosome is a large and complex molecular machine found primarily within the splicing speckles of the cell nucleus of eukaryotic cells.

New!!: Intron and Spliceosome · See more »

Transcription (biology)

Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA (especially mRNA) by the enzyme RNA polymerase.

New!!: Intron and Transcription (biology) · See more »

Transfer RNA

A transfer RNA (abbreviated tRNA and formerly referred to as sRNA, for soluble RNA) is an adaptor molecule composed of RNA, typically 76 to 90 nucleotides in length, that serves as the physical link between the mRNA and the amino acid sequence of proteins.

New!!: Intron and Transfer RNA · See more »

Translation (biology)

In molecular biology and genetics, translation is the process in which ribosomes in the cytoplasm or ER synthesize proteins after the process of transcription of DNA to RNA in the cell's nucleus.

New!!: Intron and Translation (biology) · See more »


In molecular biology, Twintrons are introns-within-introns excised by sequential splicing reactions.

New!!: Intron and Twintron · See more »

Untranslated region

In molecular genetics, an untranslated region (or UTR) refers to either of two sections, one on each side of a coding sequence on a strand of mRNA.

New!!: Intron and Untranslated region · See more »

Walter Gilbert

Walter Gilbert (born March 21, 1932) is an American biochemist, physicist, molecular biology pioneer, and Nobel laureate.

New!!: Intron and Walter Gilbert · See more »

Redirects here:

Intervening sequence, Intragenic region, Intragenic regions, Intron DNA, Intronic, Introns, Non-gene locus, Nongenic region, Retrohoming.


[1] https://en.wikipedia.org/wiki/Intron

Hey! We are on Facebook now! »