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DNA Polymerase II. (str. K-12 substr. MG1655) DNA polymerase II (also known as DNA Pol II or Pol II) is a prokaryotic DNA-dependent DNA polymerase encoded by the PolB gene. [ 1] DNA Polymerase II is an 89.9-kDa protein and is a member of the B family of DNA polymerases. It was originally isolated by Thomas Kornberg in 1970, and characterized ...
RNA polymerase (purple) unwinding the DNA double helix. It uses one strand (darker orange) as a template to create the single-stranded messenger RNA (green). In molecular biology, RNA polymerase (abbreviated RNAP or RNApol ), or more specifically DNA-directed/dependent RNA polymerase ( DdRP ), is an enzyme that catalyzes the chemical reactions ...
A DNA polymerase is a member of a family of enzymes that catalyze the synthesis of DNA molecules from nucleoside triphosphates, the molecular precursors of DNA. These enzymes are essential for DNA replication and usually work in groups to create two identical DNA duplexes from a single original DNA duplex. During this process, DNA polymerase ...
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RNA polymerase II ( RNAP II and Pol II) is a multiprotein complex that transcribes DNA into precursors of messenger RNA (mRNA) and most small nuclear RNA (snRNA) and microRNA. [ 1][ 2] It is one of the three RNAP enzymes found in the nucleus of eukaryotic cells. [ 3] A 550 kDa complex of 12 subunits, RNAP II is the most studied type of RNA ...
RNA polymerase II (also called RNAP II and Pol II) is an enzyme found in eukaryotic cells. It catalyzes the transcription of DNA to synthesize precursors of mRNA and most snRNA and microRNA . [3] [4] In humans, RNAP II consists of seventeen protein molecules (gene products encoded by POLR2A-L, where the proteins synthesized from POLR2C , POLR2E ...
Amatoxin. Amatoxin is the collective name of a subgroup of at least nine related cyclic peptide toxins found in three genera of deadly poisonous mushrooms ( Amanita, Galerina and Lepiota) and one species of the genus Pholiotina. [ 1] Amatoxins are very potent, as little as half a mushroom cap can cause severe liver injury if swallowed.
Indole-3-acetic acid ( IAA, 3-IAA) is the most common naturally occurring plant hormone of the auxin class. It is the best known of the auxins, and has been the subject of extensive studies by plant physiologists. [ 1] IAA is a derivative of indole, containing a carboxymethyl substituent. It is a colorless solid that is soluble in polar organic ...