cistron


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Related to cistron: Polycistronic

cistron

 [sis´tron]
the smallest unit of genetic material that must be intact to function as a transmitter of genetic information; as traditionally construed, approximately synonymous with gene.

cis·tron

(sis'tron),
1. The smallest functional unit of heritability; a length of chromosomal DNA associated with a single biochemical function. Under classical concepts, a gene might consist of more than one cistron; in modern molecular biology, the cistron is essentially equivalent to the structural gene.
2. The genetic unit defined by the cis/trans test.
[cis tr-ans + -on]

cistron

/cis·tron/ (sis´tron) the smallest unit of genetic material that must be intact to transmit genetic information; traditionally synonymous with gene.

cistron

(sĭs′trŏn′)
n.
A section of DNA that contains the genetic code for a single polypeptide and functions as a hereditary unit.

cis·tron′ic adj.

cistron

[sis′tron]
Etymology: L, cis, this side, trans, across
a fragment or portion of DNA that codes for a specific polypeptide. It is the smallest unit functioning as a transmitter of genetic information. In modern molecular genetics the cistron is essentially synonymous with the gene. It can include regions preceding and following the coding DNA as well as introns. -cistronic, adj.

cis·tron

(sis'tron)
1. The smallest functional unit of heritability; a length of chromosomal DNA associated with a single biochemical function. In modern molecular biology, the cistron is essentially equivalent to the structural gene.
2. The genetic unit defined by the cis/trans test.
[cistr-ans + -on]

cistron

A short length of DNA that codes for a protein subunit (a polypeptide), together with adjacent sequences that control its expression. It is the smallest unit that transmits genetic information.

cistron

or

functional gene

a portion of DNA coding for one POLYPEPTIDE CHAIN or other gene product. The one gene/ one enzyme hypothesis thus becomes the ‘one cistron (gene)/one polypeptide’ hypothesis or ‘one gene/one functional product’ hypothesis.

cistron

a DNA segment corresponding to one polypeptide chain plus the start-and-stop codon. The smallest unit of genetic material that must be intact to function as a transmitter of genetic information; as traditionaly construed, approximately synonymous with gene.
References in periodicals archive ?
Cistron, headquartered in Parsippany, NJ, was founded in 1984.
Cistron, the first combined ISP/Telco in the Netherlands, is the only service provider offering broadband ADSL Internet connections to both the consumer and business markets.
Cistron also announced today that the merger agreement has been amended to eliminate the provision for payment of up to $3.
On the web site, Cistron is offered as a business available for sale, merger or acquisition.
This will enable Cistron to avoid complex inter-ring cabling and make its network significantly more cost-effective and reliable.
At the end of the third quarter, Cistron had current assets of $10,056,989, including cash and cash equivalents of $9,088,154 and current liabilities of $467,917.
The final contract will be subject to approval by Cistron shareholders.
Earlier this week, Cistron signed a non-binding letter of intent with a major biopharmaceutical company with a market capitalization of approximately $4 billion for the acquisition of all of Cistron's outstanding common stock.
Cistron stopped selling these products in October, 1999.
Cistron will also receive royalties from Techne's sale of the products.
The purchase will be treated by Cistron as treasury stock.
Textbooks of my college era discussed genes in terms of proposed models of cistrons, recons, and mutons; were missing the start codon in charts of the genetic code; and listed "nonsense" for what we know as stop codons (Keeton, 1967).