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Restriction enzyme


A restriction enzyme is an enzyme that cuts double-stranded or single stranded DNA at specific recognition nucleotide sequences known as restriction sites. Such enzymes, found in bacteria and archaea, are thought to have...
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a protein produced by bacteria that cleaves DNA at specific sites along the molecule. In the bacterial cell, restriction enzymes cleave foreign DNA, thus eliminating infecting organisms. Restriction enzymes can be isolated from bacterial cells and used in the laboratory to manipulate fragments of DNA, such as those that contain genes; for this reason they...
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Restriction enzymes are one of the most important tools in the recombinant DNA ... Initial Steps in Restriction Enzyme Research ...
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An explanation of a special class of enzymes known as the restriction endonucleases. ... restriction enzyme recognition sequences. gene cloning techniques ...
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Collection of information about restriction enzymes, methylases, the microorganisms from which they have been isolated, recognition sequences, cleavage sites, ...
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Finds restriction endonuclease cleavage sites in DNA sequences. ... Maps sites for restriction enzymes, a.k.a. restriction endonucleases, in DNA sequences. ...
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A restriction enzyme functions by "scanning" the length of a DNA ... restriction enzyme always ... Restriction enzymes are named according to the ...
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Most restriction enzymes are used at 37 C, however Sma I is an exception. ... Taq I, by the way, is a restriction enzyme from the same type of organism that ...
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(Date:9/18/2014)... A sleep-promoting circuit located deep in the primitive ... Discovered by researchers at Harvard School of Medicine and ... Sciences, this is only the second "sleep node" identified ... both necessary and sufficient to produce deep sleep. , ... the study demonstrates that fully half of all of ...
(Date:9/18/2014)... into the Crimean-Congo hemorrhagic fever virus (CCHFV), a tick-borne ... similar to that caused by Ebolavirus, has identified new ... the potential to lead to novel targets for therapeutic ... reported in a paper published today in the journal ... the Texas Biomedical Research Institute and their colleagues, represents ...
(Date:9/18/2014)... of researchers from McGill University and the Quebec ... polyethylene ,microbeads, Canadian Journal of Fisheries and ... from cosmetics, household cleansers, or industrial cleansers, to ... to their small size and buoyancy, they may ... are a global contaminant in the world,s oceans, ...
Breaking Biology News(10 mins):No sedative necessary: Scientists discover new 'sleep node' in the brain 2Research milestone in CCHF virus could help identify new treatments 2Microplastic pollution discovered in St. Lawrence River sediments 2
... press release is available in French . ... are not slower but rather wiser than young brains, which ... according research undertaken at the University Geriatrics Institute of Montreal ... Univeristy of Montreal. "The older brain has experience and knows ...
... important processes during drilling operations. In deepwater drilling, controlling pressure ... the drilled hole can result in blowouts, leading to disastrous ... The deeper the well, the higher the pressure, and the ... drilling, when the pressure applied to balance the hydrocarbon pressure ...
... scientists and collaborators has identified a cellular protein that plays ... online today in separate studies in the journal Nature, ... world,s most deadly viruses. Ebola causes hemorrhagic fever ... humans. The virus is of concern both as a global ...
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