Helicases

... I found a statement that replication complexes help catalyze reactions of replication. While in the other part of the textbook, it said that DNA helicases and Single-strand binding proteins are involved in replication of DNAs as well. Both of the descriptions have already confused me. Are DNA ...

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Thanks kolean

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Here is a link to a free access on PubMed about several different kinds of helicases: http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pubmed&pubmedid=18329872 In a human/eukaryotic cell, there are multiple origins of DNA replication. Helicases are ...

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From here Helicase works in both directions opening the DNA molecule. How? Does it split in two, or are there more helicases that enter into the picture. The only thing I can find is that it makes a fork in the DNA and a really cheap animation. Maybe they don't really know in detail. ...

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Can anyone explain to me how the helicase process in strand separation is possible as far as time? Are there several helicases taking each a portion of the DNA, or does one start at one end and split the entire strand? If the latter is the case, how does it separate 3 billion nucleotides ...

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