DNA helicase


DNA helicase
(= unwindase)
An enzyme that uses the hydrolysis of ATP to unwind the DNA helix at the replication fork, to allow the resulting single strands to be copied. Two molecules of ATP are required for each nucleotide pair of the duplex. Found in both prokaryotes and eukaryotes.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • DNA helicase — An enzyme that catalyses the unwinding of the complementary strands of a DNA double helix. Synonym: gyrase …   Glossary of Biotechnology

  • T7 DNA Helicase — is a hexameric motor protein that uses energy from dTTP hydrolysis to process unidirectionally along single stranded DNA, separating the two strands as it progresses.Crystal StructureThe crystal structure was solved to 3.0 Å resolution in 2000, [ …   Wikipedia

  • ATP-dependent DNA helicase 2 subunit 2 — X ray repair complementing defective repair in Chinese hamster cells 5 (double strand break rejoining; Ku autoantigen, 80kDa), also known as XRCC5, is a human gene. PBB Summary section title = summary text = The protein encoded by this gene is… …   Wikipedia

  • DNA mismatch repair — is a system for recognizing and repairing erroneous insertion, deletion and mis incorporation of bases that can arise during DNA replication and recombination, as well as repairing some forms of DNA damage.[1][2] Mismatch repair is strand… …   Wikipedia

  • Helicase — Structure of E. coli helicase RuvA Helicases are a class of enzymes vital to all living organisms. They are motor proteins that move directionally along a nucleic acid phosphodiester backbone, separating two annealed nucleic acid strands (i.e.,… …   Wikipedia

  • DNA repair — For the journal, see DNA Repair (journal). DNA damage resulting in multiple broken chromosomes DNA repair refers to a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome. In human… …   Wikipedia

  • helicase — See DNA helicase …   Dictionary of molecular biology

  • DNA-Replikation — DNA Replikation. Die Doppelhelix wird durch die Helicase und die Topoisomerase geöffnet. Danach setzt die Primase einen Primer und die …   Deutsch Wikipedia

  • DNA replication — DNA replication. The double helix is unwound and each strand acts as a template for the next strand. Bases are matched to synthesize the new partner strands. DNA replication is a biological process that occurs in all living organisms and copies… …   Wikipedia

  • Helicase-dependent amplification — (HDA) is a method for in vitro DNA amplification like the polymerase chain reaction (PCR). The disadvantage of PCR is that it consumes a lot of time with uncoiling the double stranded DNA with heat into single strands (a process called… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.