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Dna gyrase

Dna gyrase

(Science: enzyme molecular biology) a type II topoisomerase of escherichia coli, that is essential for dna replication. This enzyme can induce or relax supercoiling.


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Questions on the Sodium Potassium Pump and Enzymes

... the enzyme and the substrate working at an active site? For example DNA Ligase forms phosphodiester bonds between Okazaki fragments... What about when one job involves two enzymes ie. DNA Gyrase and DNA Helicase in unwinding the double helix or when an enzyme has two ...

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by JoWillyTso
Mon Nov 05, 2012 5:50 pm
 
Forum: Cell Biology
Topic: Questions on the Sodium Potassium Pump and Enzymes
Replies: 3
Views: 3789

Theories - Origin of Life

... this anyways. :) And again, examples have been given ‒ such as the DNA gyrase example I gave above, as well as in your discussion with Luxorien. The body plan must ...

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by AstraSequi
Tue Mar 27, 2012 2:32 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929049

Theories - Origin of Life

... below.) Sample calculation: There are several single point mutations in DNA gyrase which is sufficient to confer resistance to quinolone antibiotics. (Which, I will point ...

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by AstraSequi
Tue Mar 27, 2012 2:30 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929049

I need some help on these questions

... apicomplexans, flagellates If adenine makes up 20% of the bases in a dna double helix what % of the bases are guanine? 80,60,40,20, or 30 The ... a new dna strand? Dna helicase, dna ligase, DNases, dna polymerase, dna gyrase The production of sterile male ligers is an example of? Sympatrick ...

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by 2001ChevyZ71
Sun Nov 28, 2010 3:20 am
 
Forum: General Discussion
Topic: I need some help on these questions
Replies: 4
Views: 6819

topoisomerases and gyrase

gyrase is a special kind of topoII that is present in bacteria to introduce negative supercoils into the DNA. Eukaryotes have nucleosomes to introduce the negative supercoils, so they don't need to have a girase.

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by MrMistery
Thu Apr 08, 2010 12:32 am
 
Forum: Molecular Biology
Topic: topoisomerases and gyrase
Replies: 1
Views: 8261
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