Molecular groups

Articles

• fatty acids
  25 October 2004

  Fatty acids provide highly efficient energy storage, storing much more energy for their weight than carbohydrates like glucose.
  Fatty acids are stored as triglycerides in adipose tissue, in which each triglyceride molecule contains three fatty acids and one glycerol. Triglycerides form fatty droplets that exclude water and take up minimal space.
  Fatty acids are also more highly reduced than carbohydrates, so they provide more energy during oxidation. The efficiency of energy storage in (...)

• cysteine proteases
  24 October 2003

  Members
  calpains
  Pathology of cysteine proteases
  pathology of calpains

• postsynpatic proteins
  20 October 2003

  PSDs
  SAPs
  NMDA-receptor R1
  neuroligin

• cell cycle checkpoint kinases
  31 May 2004

  cell cycle checkpoint kinases

• eicosanoids
  30 April 2004

  The eicosanoids are a family of lipophilic hormones derived from the twenty carbon fatty acid arachidonic acid.
  Most members of this family are rapidly metabolized near their site of synthesis, so they act locally on neighboring cells, not distant parts of the body. They are also not stored in cells, but synthesized rapidly in response to stimuli, making regulation of their synthesis a key to their activity.
  Many drugs act through modulating the production of eicosanoids or modulating (...)

• phosphoinositides
  15 June 2004

  Phosphoinositides (PIs) play an essential role in diverse cellular functions. Their intracellular level is strictly regulated by specific phosphoinositides kinases, phosphoinositides phosphatases and phosphoinositides phospholipases.
  Phosphatidylinositol (PtdIns) and its phosphorylated derivatives represent less than 5% of total membrane phospholipids in cells. Despite their low abundance, they form a dynamic signalling system that is regulated in response to a variety of extra and (...)

• polycomb group proteins
  15 September 2003

  PcG proteins, PcGs, polycomb silencers

• TRNs
  6 October 2003

  TGF-beta-related neurotrophins

• protease
  19 July 2003

  proteases
  Types
  Proteases are currently[update] classified into six broad groups:
  serine proteases
  cysteine proteases
  aspartate proteases
  threonine proteases
  metalloproteases
  glutamic acid proteases
  By optimal pH
  Alternatively, proteases may be classified by the optimal pH in which they are active:
  acid proteases
  basic proteases (or alkaline proteases)
  neutral proteases
  involved in type 1 hypersensitivity
  released by mast cells, it causes activation of complement (...)

• RNA polymerases
  19 July 2003

  Members
  RNA polymerase I complexes
  RNA polymerase II complexes
  RNA polymerase III complexes (POL3s: POL3A, POL3B)

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