There main purpose is to cut up viral DNA that invades bacteria. Since they do this at definite sites, depending on which restriction enzyme is used, they can be used in genetic recombination exercises. Inserting sections of DNA into bacterial plasmids so that desired products will be made by these bacteria.
Restriction enzymes sever DNA at or near specific nucleotide sequences known as restriction sites. These cuts produce a double-stranded piece of DNA.
restriction enzymes
No. restriction enzymes do not cut proteins. restriction enzymes cut DNA molecules at specific sites called restriction sites.
restriction endonuclease enzymes
Restriction enzymes, also known as restriction endonucleases, are used to cut DNA into smaller fragments. Restriction enzymes are found in bacteria, where they act like molecular scissors by cutting up DNA from invading viruses or bacteriophages. Each restriction enzyme recognizes a specific nucleotide sequence and cuts the DNA at that site. This process makes restriction enzymes extremely useful in biotechnology where they are used in procedures such as DNA cloning, DNA fingerprinting, and genetic engineering. There are hundreds of known restriction enzymes, and each one was named for the bacteria from which it was isolated. For example, EcoRI was isolated from Escherichia coli and HaeIII from Haemophilus aegyptius.
Restriction enzymes are made by the ribosomes in bacteria. For information on which bacteria produce which specific restriction enzymes, some can be found in a table near the bottom of this page: http://en.wikipedia.org/wiki/Restriction_enzymes
restriction enzymes
Actually the answer would be Restriction enzyme and DNA ligase.
restriction enzymes
No. restriction enzymes do not cut proteins. restriction enzymes cut DNA molecules at specific sites called restriction sites.
by using restriction enzymes
restriction enzymes or endonuclease enzymes
Restriction Enzymes
restriction endonuclease enzymes
Bacterias use restriction enzymes as a form of defense mechanism. We as people use these restriction enzymes in bacterias to aid us in genetic engineering.
Restriction enzymes, also known as restriction endonucleases, are used to cut DNA into smaller fragments. Restriction enzymes are found in bacteria, where they act like molecular scissors by cutting up DNA from invading viruses or bacteriophages. Each restriction enzyme recognizes a specific nucleotide sequence and cuts the DNA at that site. This process makes restriction enzymes extremely useful in biotechnology where they are used in procedures such as DNA cloning, DNA fingerprinting, and genetic engineering. There are hundreds of known restriction enzymes, and each one was named for the bacteria from which it was isolated. For example, EcoRI was isolated from Escherichia coli and HaeIII from Haemophilus aegyptius.
Restriction enzymes are made by the ribosomes in bacteria. For information on which bacteria produce which specific restriction enzymes, some can be found in a table near the bottom of this page: http://en.wikipedia.org/wiki/Restriction_enzymes
Restriction Enzymes