Operons are also found in viruses such as bacteriophages. For example, T7 phages have two operons. The first operon codes for ... This allows for expression of the operon. The lac operon is a negatively controlled inducible operon, where the inducer ... The second operon includes a lysis gene meant to cause the host cell to burst. The term "operon" was first proposed in a short ... The first operon to be described was the lac operon in E. coli. The 1965 Nobel Prize in Physiology and Medicine was awarded to ...
ODB (Operon DataBase) is a database of conserved operons in sequenced genomes. Operon Okuda, Shujiro; Yoshizawa Akiyasu C (Jan ... http://operondb.jp/ v t e (Biological databases, Gene expression, Operons, All stub articles, Biological database stubs). ... 2011). "ODB: a database for operon organizations, 2011 update". Nucleic Acids Res. England. 39 (Database issue): D552-5. doi: ...
Transcription of the tyrT operon is activated by the stringent response. Binding of the FIS protein to the operon's upstream ... The tyrT operon is a series of genes encoding the tRNA for tyrosine in Escherichia coli. It is activated in response to amino ... The tyrT operon consists of an upstream activation sequence, the gene for the tyrosine tRNA called tRNA1Tyr, and an RNA called ... Bosl M, Kersten H (1991). "A novel RNA product of the tyrT operon of Escherichia coli". Nucleic Acids Research. 19 (21): 5863- ...
The gab operon is responsible for the conversion of γ-aminobutyrate (GABA) to succinate. The gab operon comprises three ... The gab operon contributes to homeostasis of polyamines such as putrescine, during nitrogen-limited growth. It is also known to ... The gab operon has been characterized in Escherichia coli and significant homologies for the enzymes have been found in ... The gab operon is also known to contribute to polyamine homeostasis during nitrogen-limited growth and to maintain high ...
The glnALG operon is an operon that regulates the nitrogen content of a cell. It codes for the structural gene glnA the two ... Hence along with histidase, glnALG operon maintains homeostasis within the cell. The glnALG operon is regulated by an intricate ... glnALG operon, along with the glnD and glnF and their gene products, plays an extremely important role in regulating the ... Jayakumar, A; I Schulman, D MacNeil; E M Barnes Jr (April 1986). "Role of the Escherichia coli glnALG operon in regulation of ...
The lactose operon (lac operon) is an operon required for the transport and metabolism of lactose in E. coli and many other ... lac operon in NCBI Bookshelf [2] Virtual Cell Animation Collection Introducing: The Lac Operon The lac Operon: Bozeman Science ... Their work on the lac operon won them the Nobel Prize in Physiology in 1965. Bacterial operons are polycistronic transcripts ... regulatory gene for lac operon) produces a protein that blocks RNAP from binding to the operator of the operon. This protein ...
The gal operon is also controlled by CRP-cAMP, similarly to the lac operon. CRP-cAMP binds to the -35 region, promoting ... The gal operon is a prokaryotic operon, which encodes enzymes necessary for galactose metabolism. Repression of gene expression ... The gal operon contains two operators, OE (for external) and OI (for internal). The former is just upstream of the promoter, ... The gal operon of E. coli consists of 4 structural genes: galE (epimerase), galT (galactose transferase), galK (galactokinase ...
The nik operon is an operon required for uptake of nickel ions into the cell. It is present in many bacteria, but has been ... Nickel ion concentration in the cell is regulated through the nik operon. The nik operon consists of six genes. The first five ... gene regulation Operon lac operon Navarro, Clarisse; Wu, Long-Fei; Mandrand-Berthelot, Marie-Andrée (1 September 1993). "The ... The following table summarizes the structure of the nik operon: Regulation of expression of the nikR gene is achieved by two ...
In molecular biology, the ars operon is an operon found in several bacterial taxon. It is required for the detoxification of ... ArsD and ArsR work together to regulate the ars operon. arsenic chaperone, ArsD, encoded by the arsRDABC operon of Escherichia ... It acts as a repressor on the arsRDABC operon when no arsenic is present in the cell. When arsenic is present in the cell ArsR ... Carlin A, Shi W, Dey S, Rosen BP (February 1995). "The ars operon of Escherichia coli confers arsenical and antimonial ...
The gua operon is repressed by GMP and is induced by AMP. Similarly AMP synthesis is repressed by AMP itself while it is ... The operon must respond to changes in the metabolic state of the cell. It is subject to growth rate dependent control, ... The gua operon is responsible for regulating the synthesis of guanosine mono phosphate (GMP), a purine nucleotide, from inosine ... This complex binds to a region 100 bp upstream of the guaB transcription start site which then represses the gua operon. It is ...
The CPS operon contains genes which code for the following proteins: Wza - a lipoprotein which may form a channel in the ... The same operon is present in Klebsiella species, possibly as a result of horizontal gene transfer. Whitfield C (2006). " ... The CPS operon is likely transcriptionally regulated by the Rcs (regulation of capsule synthesis) proteins. Reduced levels of ... The capsule biosynthesis, or CPS operon, is a section of the genome present in some Escherichia coli, of which regulates the ...
The trp operon is well-studied and is commonly used as an example of gene regulation in bacteria alongside the lac operon. trp ... The trp operon was first characterized in Escherichia coli, and it has since been discovered in many other bacteria. The operon ... The operon operates by a negative repressible feedback mechanism. The repressor for the trp operon is produced upstream by the ... The trp operon additionally uses attenuation to control expression of the operon, a second negative feedback control mechanism ...
The threonine operon leader is an RNA element. Threonine is one of at least 6 amino acid operons are known to be regulated by ... Page for Threonine operon leader at Rfam v t e (Cis-regulatory RNA elements, All stub articles, Molecular and cellular biology ... In each a leader sequence of 150-200 bp is found upstream of the first gene in the operon. This leader sequence can assume two ... In each case the leader also codes for very short peptide sequence that is rich in the end product amino acid of the operon. ...
The Leucine operon leader is an RNA element found upstream of the first gene in the Leucine biosynthetic operon. The leader ... This allows RNA polymerase to transcribe the operon. At least 6 amino acid operons are known to be regulated by attenuation. ... Page for Leucine operon leader at Rfam v t e (Articles needing additional references from April 2020, All articles needing ... The terminator structure is recognised as a termination signal for RNA polymerase and the operon is not transcribed. This ...
The Histidine operon leader is an RNA element found in the bacterial histidine operon. At least 6 amino acid operons are known ... Page for Histidine operon leader at Rfam v t e (Cis-regulatory RNA elements, All stub articles, Molecular and cellular biology ... In each a leader sequence of 150-200 bp is found upstream of the first gene in the operon. This leader sequence can assume two ... In each case the leader also codes for very short peptide sequence that is rich in the end product amino acid of the operon. ...
The Tryptophan operon leader is an RNA element found at the 5′ of some bacterial tryptophan operons. The leader sequence can ... This allows RNA polymerase to transcribe the operon. At least 6 different amino acid operons are known to be regulated by this ... Page for Tryptophan operon leader at Rfam v t e (Cis-regulatory RNA elements, All stub articles, Molecular and cellular biology ... This causes the anti-terminator loop to form and the tryptophan operon to be transcribed. Kolter, R; Yanofsky C (1982). " ...
Operon Catabolism Catabolite repression Other operon systems in E. coli: gal operon gab operon lac operon trp operon Voet, ... The L-arabinose operon, also called the ara or araBAD operon, is an operon required for the breakdown of the five-carbon sugar ... The L-arabinose operon has been commonly used in protein expression system, as the araBAD promoter can be used for producing ... The L-arabinose operon has been a focus for research in molecular biology since 1970, and has been investigated extensively at ...
Page for Alpha operon ribosome binding site at Rfam v t e (Cis-regulatory RNA elements, All stub articles, Molecular and ... The alpha operon ribosome binding site in bacteria is surrounded by this complex pseudoknotted RNA structure. Translation of ... Schlax PJ, Xavier KA, Gluick TC, Draper DE (October 2001). "Translational repression of the Escherichia coli alpha operon mRNA ...
Operon. (Articles with ISNI identifiers, Articles with VIAF identifiers, Articles with LCCN identifiers, Articles with PLWABN ...
Sendecka Zyta, Szedzianis Elzbieta "The Books seria Vademecum of High school examination". (Operon, 2010). ISBN 9788376801926 ...
The Lactose Operon. 1970. ISBN 978-0-317-11809-4. Collins, J. F. (1962). "Estimation of penicillinase in single bacterial cells ...
"Operon Racing - Gutek's bio". www.operonracing.com. Retrieved 2022-01-05. v t e (Articles with topics of unclear notability ...
"Operon Racing - Gutek's bio". www.operonracing.com. "News - Gutek 3rd of the Caribbean 600 - Vendée Globe - En". www. ...
Operon analyses have been reported. MerP is a periplasmic Hg2+-binding receptor of about 70-80 amino acyl residues, synthesized ... The MerC protein encoded on the IncJ plasmid pMERPH of the Shewanella putrefaciens mercuric resistance operon is 137 amino ... Velasco, A.; Acebo, P.; Flores, N.; Perera, J. (1999-01-01). "The mer operon of the acidophilic bacterium Thiobacillus T3.2 ... "Sequence and analysis of a plasmid-encoded mercury resistance operon from Mycobacterium marinum identifies MerH, a new mercuric ...
Jacob, F.; Ullman, A.; Monod, J. (1964). "The Promotor, A Genetic Element Necessary to the Expression of an Operon". Comptes ... Jacob, F. O. (2011). "The Birth of the Operon". Science. 332 (6031): 767. Bibcode:2011Sci...332..767J. doi:10.1126/science. ... "The operon: A group of genes with expression coordinated by an operator. C.R.Acad. Sci. Paris 250 (1960) 1727-1729". Comptes ... Operon: a group of genes with the expression coordinated by an operator] (PDF). Comptes rendus hebdomadaires des séances de ...
It is coded for by the lacA gene of the lac operon in E. coli. It catalyzes the following reaction: acetyl-CoA + beta-D- ... The enzyme's role in the classical E.coli lac operon remains unclear. However, the enzyme's cellular role may be to detoxify ... Transacetylase Wang XG, Olsen LR, Roderick SL (April 2002). "Structure of the lac operon galactoside acetyltransferase". ... "Thiogalactoside transacetylase of the lactose operon as an enzyme for detoxification". 1976. {{cite journal}}: Cite journal ...
Sung YC, Fuchs JA (October 1988). "Characterization of the cyn operon in Escherichia coli K12". The Journal of Biological ... Anderson PM, Sung YC, Fuchs JA (December 1990). "The cyanase operon and cyanate metabolism". FEMS Microbiology Reviews. 7 (3-4 ...
Lawrence, Jeffrey G.; Roth, John R. (1996-08-01). "Selfish Operons: Horizontal Transfer May Drive the Evolution of Gene ... Pál, Csaba; Hurst, Laurence D (2004-06-01). "Evidence against the selfish operon theory". Trends in Genetics. 20 (6): 232-234. ...
That said, they constitute an operon. The SOS genes share a common regulatory mechanism and constitutes a general defense ...
Regulation is different for each operon. The ilvGMEDA operon encodes the ilvGM (ALS II) pair as well as a branched-chain-amino- ... The ilvBNC operon encodes the ilvBN (ALS I) pair and a ketol-acid reductoisomerase (ilvC). It is similarly regulated, but is ... Both of these operons as well as the third, ilvIH, are regulated by leucine-responsive protein (Lrp). Inhibitors of ALS are ... Each subunit pair, or ALS I, II, and III respectively, is located on its own operon, ilvBN, ilvGM and ilvIH (where ilvN ...