Molecules

Articles

• acetyl-CoA
  2 June 2004

  Acetyl CoA

• ceramide
  4 December 2003

  ceramides

• PRF1
  11 November 2003

  perforin

• glutamate
  3 May 2004

  Glutamate is a central junction for interchange of amino nitrogen, glutamate facilitates both amino acid synthesis and degradation.
  In the liver, glutamate is the terminus for release of ammonia from amino acids, and the intrahepatic concentration of glutamate modulates the rate of ammonia detoxification into urea.
  In pancreatic beta-cells, oxidation of glutamate mediates amino acid-stimulated insulin secretion.
  In the central nervous system, glutamate serves as an excitatory (...)

• gene
  16 September 2003

  WP
  Definition: A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity.
  The transmission of genes to an organism’s offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood (...)

• salts
  16 September 2003
• Saccharides
  16 September 2003

  carbohydrates

• nucleic acid
  16 September 2003

  polynucleotides, nucleic acids

• GZMB
  15 September 2003

  granzyme-B, CTLA1

• heme
  6 October 2003

  A heme (or haem) is a prosthetic group that consists of an iron atom contained in the center of a large heterocyclic organic ring called a porphyrin.
  Not all porphyrins contain iron, but a substantial fraction of porphyrin-containing metalloproteins have heme as their prosthetic subunit; these are known as hemoproteins.
  Structure
  Function
  Members
  heme A
  Heme synthesis (porphyrin synthesis)
  The enzymatic process that produces heme is properly called porphyrin synthesis, as all the (...)

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