0
DNA gyrase is a bacterial enzyme which introduces supercoils into the bacterial DNA, resulting in a highly condensed 3-dimentional struture. it is also known as Topoisomerase. Quinolones and F/Quinolones inhibit this enzyme and thus interfere with bacterial DNA replication. The enzyme is absent in humans.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoGyrase is an enzyme and is the first step in DNA replication. It unwinds the coiled DNA to relieve tension. It makes it easier for Helicase to split the 2 strands of DNA when it is flattened
Wiki User
∙ 11y agoTo relieve strain on the DNA strand while helicase is unwinding the strand. An enzyme, of course.
Add your answer:
Earn +20 pts
What enzyme can remove or insert super coil twists into circular DNA?
The enzyme topoisomerase is used in inserting or loosing supercoiling in DNA during replication. It is of different type like gyrase, helicase etc. and are found in prokaryotes and eukaryotes respectively
What is the function of most of the DNA in the body?
Most of the DNA in humans appears to have no genetic function.
Describe the special function of DNA found in the nucleus?
DNA has an important function in the nucleus. DNA acts as the brain of the cell and controls the functions of the other organelles.
What enzyme catalyzes DNA replication?
one of them is heliocase. it 'unzips' the DNA strand. You can always remember this because it's in a popular joke: Q. Why is the enzyme heliocase a lot like a teenage boy? A. They both want to unzip your jeans (genes) !!!!!
What is the primary function of DNA?
DNA is the genetic material of cells. The major function of DNA is to store and transmit genetic (hereditary) information. It does this by providing a code (the genetic code) for the production of proteins by the cell.
Why is reverse gyrase called reverse gyrase?
The enzyme DNA gyrase produces negative supercoils in DNA. The "negative" refers to the directionality of the supercoil, not the electrical charge of the molecule. Reverse gyrase produces positive supercoils, meaning the DNA supercoils in the opposite direction of the negative supercoil.
What force makes DNA twist?
DNA gyrase makes it twist
What antibiotic is an inhibitor of DNA gyrase?
nalidixic acid &ciprofloxacin
What keeps DNA strands from being tangled?
Gyrase does, which relives torque after Helicase breaks the Hydrogen bonds.
What enzyme can remove or insert super coil twists into circular DNA?
The enzyme topoisomerase is used in inserting or loosing supercoiling in DNA during replication. It is of different type like gyrase, helicase etc. and are found in prokaryotes and eukaryotes respectively
What is an aminocoumarin?
An aminocoumarin is any of a class of antibiotics which act by inhibition of the DNA gyrase enzyme which is involved in bacterial cell division.
What are the major targets for antibiotics?
The most successful antibiotics hit only three targets. The targets that are usually hit are the ribosome, cell wall synthesis and DNA gyrase.
What is the function of most DNA in your body?
The function of most DNA is to build and maintain an organism.
What enzyme is responsible for breaking the hydrogen bonds between the two strands and unwinding the helix?
Helicases and gyrases both function to uncoil the supercoiling of the two DNA strands. Moreover, gyrase is responsible for adjusting the tension in the two strands so that they don't snap while unraveling.
What is the function of DNA chromosomes?
The main function of DNA chromosomes is to carry genes.
What is the function of most of the DNA in the body?
Most of the DNA in humans appears to have no genetic function.
What is the function of plasmid DNA?
Plasmids have small pockets of DNA in them.
