Navigation Links
Promoter in Biological Definition

Promoter

... for disambiguation of the term promoter, see the promoter Wiktionary article In genetics , a promoter is a DNA sequence that enables a gene to be transcribed . The promoter is recognized by RNA polymerase , which then ...

Operon

... An operon is a group of genes including an operator , a common promoter , and one or more structural genes that are controlled as a unit to ... and two associated segments of DNA : an operator (the switch) a promoter (a binding site for the transcription enzyme ). The switch of an ...

Bioinformatics

... to that expression data to determine which genes are co-expressed. Further analysis could take a variety of directions: one 2004 study analyzed the promoter sequences of co-expressed (clustered together) genes to find common regulatory elements and used machine learning techniques to predict the ...

Bioinformatics

... to that expression data to determine which genes are co-expressed. Further analysis could take a variety of directions: one 2004 study analyzed the promoter sequences of co-expressed (clustered together) genes to find common regulatory elements and used machine learning techniques to predict the ...

Enhancer

... article in Science , where researchers Wedel, et. al., made two linked circles of DNA, one circle with the enhancer sequence and the other with its promoter . An abstract can be found here .) An enhancer does not need to bind close to the transcription initiation site to affect its transcription, as ...

Gene

... DNA strand is expressed into a trait only if it is transcribed to RNA . Because the transcription starts from a specific base-pair sequence (a promoter ) and stops at another (a terminator ), our DNA strand needs to be correctly placed between the two. If not, it is considered as junk DNA , and is ...

Homeobox

... of a single homeodomain protein is usually not enough to recognize only its desired target genes. Most of the time, homeodomain proteins act in the promoter region of their target genes as complexes with other transcription factors, often also homeodomain proteins. Such complexes have a much higher target ...

Molecular biology

... of interest is cloned (using PCR and/or restriction enzymes ) into a plasmid (known as an expression vector). This plasmid may have special promoter elements to drive production of the protein of interest, and may also have antibiotic resistance markers to help follow the plasmid. This plasmid ...

Protein biosynthesis

... The transcription starts with initiation. RNA polymerase , an enzyme, binds to a specific region on the DNA, marking the starting point, called the promoter . As the RNA polymerase binds on to the promoter, the DNA strands are beginning to unwind. The second process is known as elongation. As the RNA ...

RNA

... Synthesis RNA is made by an enzyme , RNA polymerase , using DNA as a template. The synthesis begins when the enzyme binds to special promoter regions on the DNA helix; these regions mark the beginning of a gene. The DNA double helix is unwound by the helicase activity of the enzyme. ...

Signal transduction

... were activated by the hormones attach at the DNA at receptor-specific Hormone Responsive Elements ( HREs ), DNA sequences that are located in the promoter region of the genes that are activated by the hormone-receptor complex. As this enables the transcription of the according gene, these hormones are ...
Other Contents
(Date:7/9/2014)... some shark species may be able to cope with the ... temperatures. , The Arctic today is best known for its ... that. Roughly 53 to 38 million years ago during what ... similar to a huge temperate forest with brackish water, home ... hippo-like creatures, crocodiles and giant tortoises. Much of what is ...
(Date:7/9/2014)... The U.S. may be on the verge of an economy ... burns cleaner than coal and is undergoing a production boom. ... globally, but recent research is casting serious doubts over just ... Chemical & Engineering News (C&EN), the weekly news magazine ... Johnson, a senior correspondent at C&EN, explains that when burned ...
(Date:7/9/2014)... can alleviate the symptoms of Alzheimer,s disease, ... and effectively scavenge amyloid beta peptide in ... reduced and eliminated Aβ deposition in an ... significantly improved behavioral and cognitive impairment. Dr. ... Hospital of China Medical University, China immunized ...
Breaking Biology News(10 mins):Shark teeth analysis provides detailed new look at Arctic climate change 2Shark teeth analysis provides detailed new look at Arctic climate change 3
(Date:7/9/2014)... stromal support cells and immune cells and the ... the development of diseases could open new therapeutic ... the conclusion of a review article by scientists from ... Nature . , Prof. Peter Carmeliet: "Consider the review ... cancer cells has been examined in minute detail for ...
(Date:7/9/2014)... are personal and subjective, the human brain turns ... emotions across different senses, situations and even people, ... Adam Anderson. , "We discovered that fine-grained patterns ... area of the brain associated with emotional processing, ... individual,s subjective feeling," says Anderson, associate professor of ...
(Date:7/9/2014)... than watching World Cup highlights, Brian Williams refreshing old ... unfortunate positions on railings. A University of Colorado Cancer ... shows that YouTube also allows researchers, journals, and ... topics of skin cancer and prevention. , "No matter ... of how we communicate around the world," says Chante ...
(Date:7/9/2014)... on prescription labels handed out by pharmacists may ... taking medication, according to new research by the ... for the Blind)., The study, published recently in ... labels on prescription medications dispensed by pharmacies do ... , By simply following recommended guidelines for font ...
(Date:7/9/2014)... of Medicine of the University of Southern California ... component of the immune system are completely resistant ... The discovery suggests that blocking this immune system ... and hyper-inflammatory diseases such as rheumatoid arthritis and ... online on June 23 in The Journal ...
Breaking Medicine News(10 mins):Health News:Wake-up call for more research into cell metabolism 2Health News:Study cracks how the brain processes emotions 2Health News:Study of dermatology on YouTube shows new ways science reaches public 2Health News:Most prescription labels fail to meet guidelines, risking dosage errors 2
Other TagsOther Tags