DNA polymerases
Enzymes (EC 2.7.7.7) involved in template-directed synthesis of DNA from deoxyribonucleotide triphosphates. I, II and III are known in E. coli ; III appears to be most important in genome replication and I is important for its ability to edit out unpaired bases at the end of growing strands. Animal cells have a, b and g polymerases, with a apparently responsible for replication of nuclear DNA, and g for replication of mitochondrial. All these function with a DNA strand as template. Retroviruses possess a unique DNA polymerase (reverse transcriptase) that uses an RNA template.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • 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

  • DNA end — or sticky end refers to the properties of the end of a molecule of DNA or a recombinant DNA molecule. The concept is important in molecular biology, especially in cloning or when subcloning inserts DNA into vector DNA. All the terms can also be… …   Wikipedia

  • DNA polymerase — 3D structure of the DNA binding helix turn helix motifs in human DNA polymerase beta A DNA polymerase is an enzyme that helps catalyze in the polymerization of deoxyribonucleotides into a DNA strand. DNA polymerases are best known for their… …   Wikipedia

  • DNA — For a non technical introduction to the topic, see Introduction to genetics. For other uses, see DNA (disambiguation). The structure of the DNA double helix. The atoms in the structure are colour coded by element and the detailed structure of two …   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

  • Dna-polymérase — ADN polymérase La réplication de l ADN par une ADN polymérase Une ADN polymérase est un complexe enzymatique intervenant dans la réplication de l’ADN au cours du cycle cellulaire, mais aussi dans des processus de réparation et de recombinaison de …   Wikipédia en Français

  • DNA polymerase lambda — Polymerase (DNA directed), lambda Rendering based on 1xsn of pol λ bound to a DNA strand containing a 1 nt gap …   Wikipedia

  • DNA polymerase mu — Polymerase (DNA directed), mu PDB rendering based on 2dun …   Wikipedia

  • DNA polymerase III holoenzyme — Pol III can also refer to HNoMS Pol III, a Norwegian guard vessel from WWII DNA polymerase III holoenzyme is the primary enzyme complex involved in prokaryotic DNA replication. It was discovered by Thomas Kornberg (son of Arthur Kornberg) and… …   Wikipedia

  • DNA-binding protein — Cro protein complex with DNA Interaction of DNA (shown in …   Wikipedia

Share the article and excerpts

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