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Related to cistron: Polycistronic


A section of DNA that contains the genetic code for a single polypeptide and functions as a hereditary unit.

[From cis-trans test, a genetic test (cis- + trans-) + -on.]

cis·tron′ic adj.


(Genetics) genetics the section of a chromosome that encodes a single polypeptide chain
[C20: from cis-trans; see cis-trans test]


(ˈsɪs trɒn)

a segment of DNA that codes for the formation of a specific protein; a structural gene.
[1955–60; cis- + tr (ans)- + -on1]
cis•tron′ic, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cistron - (genetics) a segment of DNA that is involved in producing a polypeptide chaincistron - (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity; "genes were formerly called factors"
dominant gene - gene that produces the same phenotype in the organism whether or not its allele identical; "the dominant gene for brown eyes"
allele, allelomorph - (genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character; "some alleles are dominant over others"
genetic marker - a specific gene that produces a recognizable trait and can be used in family or population studies
homeotic gene - one the genes that are involved in embryologic development
lethal gene - any gene that has an effect that causes the death of the organism at any stage of life
linkage group, linked genes - any pair of genes that tend to be transmitted together; "the genes of Drosophila fall into four linkage groups"
modifier gene, modifier - a gene that modifies the effect produced by another gene
mutant gene - a gene that has changed so that the normal transmission and expression of a trait is affected
nonallele - genes that are not competitors at the same locus
operator gene - a gene that activates the production of messenger RNA by adjacent structural genes
oncogene, transforming gene - a gene that disposes normal cells to change into cancerous tumor cells
polygene - a gene that by itself has little effect on the phenotype but which can act together with others to produce observable variations
proto-oncogene - a normal gene that has the potential to become an oncogene
recessive gene - gene that produces its characteristic phenotype only when its allele is identical; "the recessive gene for blue eyes"
regulator gene, regulatory gene - a gene that produces a repressor substance that inhibits an operator gene
repressor gene - gene that prevents a nonallele from being transcribed
structural gene - a gene that controls the production of a specific protein or peptide
suppresser gene, suppressor gene, suppresser, suppressor - a gene that suppresses the phenotypic expression of another gene (especially of a mutant gene)
transgene - an exogenous gene introduced into the genome of another organism
X-linked gene - a gene located on an X chromosome
holandric gene, Y-linked gene - a gene located on a Y chromosome
chromosome - a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order; "humans have 22 chromosome pairs plus two sex chromosomes"
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
molecular biology - the branch of biology that studies the structure and activity of macromolecules essential to life (and especially with their genetic role)
sequence - serial arrangement in which things follow in logical order or a recurrent pattern; "the sequence of names was alphabetical"; "he invented a technique to determine the sequence of base pairs in DNA"
deoxyribonucleic acid, desoxyribonucleic acid, DNA - (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information; "DNA is the king of molecules"
References in periodicals archive ?
The structural genes encoding A and B subunits, ctxA and ctxB, are arranged so that the ctxA cistron precedes ctxB (13).
Organism (Organism, OrgName, CHRO, DBReference, Description) Cistron (CistronID, C_Name, Organism, Symbol)
The internal transcribed spacers (ITSs) of nuclear ribosomal DNA (rDNA) is one of the most extensively sequenced molecular markers, and the region is a component of a rDNA cistron, which consists of 18S, ITS1, 5.
the nuclear ribosomal cistron to compare populations of C.
4 Cash acquired less acquisition expenses of Medeva and Cistron -- 13.
Prior to that he was chairman and CEO of Cistron Biotechnology.
The results follow news that Celltech was buying US-based Cistron Biotechnology for just short of pounds 12 million.
Among its acquisitions were fixed-line operator Enertel (May 2006), mobile operator Telfort (August 2005), and ISPs CistroN (January 2005), Freeler (February 2005), hcc
He holds a PhD in endocrinology from Imperial College, UK, and has worked as manager for immunodiagnostics with the UK subsidiary of Boehringer Mannheim (now owned by Roche), and as an independent biomedical market analyst with Cistron, UK.
Celltech Group plc announced today the completion of its acquisition of Cistron Biotechnology Inc.
Celltech Group plc (NYSE: CLL; LSE: CCH), a UK-based biopharmaceutical company, and Cistron Biotechnology Inc (OTC: CIST) announced today the completion of their merger.