prostaglandin H2

Three steps

• 15-hydroperoxy-(5Z,8Z,11Z,13E)-eicosatetraenoateReach from here →
  1. transport of prostaglandin H2 (cytosol to extracellular)
  2. transport of arachidonate (cytosol to extracellular)
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoate + O2 = 15-hydroperoxy-(5Z,8Z,11Z,13E)-eicosatetraenoate

  Catalysed by SLCO1B1, ALOX15Bextracellular space, cytosol

• 5-hydroperoxy-(6E,8Z,11Z,14Z)-eicosatetraenoateReach from here →
  1. transport of prostaglandin H2 (cytosol to extracellular)
  2. transport of arachidonate (cytosol to extracellular)
  3. (5Z,8Z,11Z,14Z)-eicosatetraenoate + O2 = 5-hydroperoxy-(6E,8Z,11Z,14Z)-eicosatetraenoate

  Catalysed by SLCO1B1, ALOX15Bextracellular space, cytosol

• 2-(1-hydroxyethyl)thiamine diphosphateReach from here →
  1. prostaglandin H2(out) + 2 (S)-lactate(in) = prostaglandin H2(in) + 2 (S)-lactate(out)
  2. (S)-lactate + NAD(+) = pyruvate + NADH + H(+)
  3. pyruvate:thiamin diphosphate acetaldehydetransferase (decarboxylating)

  Catalysed by SLCO2A1, LDHA, LDHB, LDHC and 5 moreinner side of the membrane, outer side of the membrane, mitochondrial matrix