So far, the text that has accompanied this picture has claimed the rattlesnake was killed in either Poteau Mountain, Arkansas or Olla, Louisiana. Although the location may change, the size of the snake is apparently being consistently reported as 11 feet 4 inches and 59 pounds (with 28 rattles). Let's start with what we know. The color and patterning of the snake give it away as a Timber Rattlesnake, Crotalus horridus.
DNA gyrase, often referred to simply as gyrase, is an enzyme that relieves strain while double-stranded DNA is being unwound by helicase. This causes negative supercoiling of the DNA.Bacterial DNA gyrase is the target of many antibiotics, including nalidixic acid, novobiocin, and ciprofloxacin. bacterial DNA topoisomerase II that catalyzes ATP-dependent breakage of both strands of DNA, passage of the unbroken strands through the breaks, and rejoining of the broken strands. Gyrase binds to DNA as a heterotetramer consisting two A and two B subunits.
DNA Helicase and Its Function in Replication. DNA helicase is an enzyme that unwinds the DNA double helix by breaking the hydrogen bonds between the complementary bases. It's easy to remember the name because it has part of the word helix in it.esson Summary. Let's review what we've learned so far. DNA helicase is the enzyme that unwinds the DNA double helix by breaking the hydrogen bonds down the center of the strand. It begins at a site called the origin of replication, and it creates a replication fork by separating the two sides of the parental DNA.