(R)-3-hydroxybutyric acid

Three steps

• taurineReach from here →
  1. transport of (R)-3-hydroxybutanoate and formate (cytosol to extracellular)
  2. transport of chloride and formate (cytosol to extracellular)
  3. Neurotransmitter:Sodium Symporter (Nss) Tcdb:2.A.22.3.3

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 2 moreextracellular space, cytosolOne of 2 routes

• succinyl-CoAReach from here →
  1. (R)-3-Hydroxybutanoate:NAD+ oxidoreductase
  2. (3S)-3-hydroxy-3-methylglutaryl-CoA = acetoacetate + acetyl-CoA
  3. 3-hydroxy-3-methylglutarate + succinyl-CoA = (3S)-3-hydroxy-3-methylglutaryl-CoA + succinate

  Catalysed by BDH1, BDH2, HMGCL, HMGCLL1 and 1 moremitochondrial matrix

• glycineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. L-Alanine:glyoxylate aminotransferase

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrixOne of 17 routes

• (3S)-3-hydroxybutanoyl-CoAReach from here →
  1. (R)-3-Hydroxybutanoate:NAD+ oxidoreductase
  2. acetoacetate + ATP + CoA = acetoacetyl-CoA + AMP + diphosphate
  3. (3S)-3-hydroxybutanoyl-CoA + NAD(+) = acetoacetyl-CoA + NADH + H(+)

  Catalysed by BDH1, BDH2, AACS, HADH and 1 moremitochondrial matrix

• (S)-malyl-CoAReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (S)-malate + NAD(+) = pyruvate + CO2 + NADH
  3. (S)-malate + ATP + CoA = (S)-malyl-CoA + ADP + phosphate

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 5 moreextracellular space, cytosol

• (R)-methylmalonyl-CoAReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. aldehyde dehydrogenase (2-methyl-3-oxopropanoate)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrix

• (S)-methylmalonyl-CoAReach from here →
  1. transport of (R)-3-hydroxybutanoate and propanoate (cytosol to extracellular)
  2. Propanoate:CoA ligase (AMP-forming)
  3. propanoyl-CoA:carbon-dioxide ligase (ADP-forming)

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 5 moreextracellular space, cytosol, mitochondrial matrix

• (2E)-butenoyl-CoAReach from here →
  1. transport of (R)-3-hydroxybutanoate and butyrate (cytosol to extracellular)
  2. Butanoate:CoA ligase (AMP-forming)
  3. butanoyl-CoA:electron-transfer flavoprotein 2,3-oxidoreductase

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 8 moreextracellular space, cytosol, mitochondrial matrixOne of 2 routes

• acryloyl-CoAReach from here →
  1. transport of (R)-3-hydroxybutanoate and propanoate (cytosol to extracellular)
  2. Propanoate:CoA ligase (AMP-forming)
  3. medium-chain acyl-CoA dehydrogenase (propanoyl-CoA)

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 5 moreextracellular space, cytosol, mitochondrial matrix

• glutaryl-CoAReach from here →
  1. (R)-3-Hydroxybutanoate:NAD+ oxidoreductase
  2. (3S)-3-hydroxy-3-methylglutaryl-CoA = acetoacetate + acetyl-CoA
  3. 3-hydroxy-3-methylglutarate + glutaryl-CoA = (3S)-3-hydroxy-3-methylglutaryl-CoA + glutarate

  Catalysed by BDH1, BDH2, HMGCL, HMGCLL1 and 1 moremitochondrial matrix

• propanoyl-CoAReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-amino-2-methylpropanoate + pyruvate = 2-methyl-3-oxopropanoate + L-alanine
  3. 2-methyl-3-oxopropanoate + NAD(+) + CoA + H2O = propanoyl-CoA + hydrogencarbonate + NADH + H(+)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol

• prostaglandin E1Reach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (S)-lactate + NAD(+) = pyruvate + NADH + H(+)
  3. prostaglandin E1(out) + 2 (S)-lactate(in) = prostaglandin E1(in) + 2 (S)-lactate(out)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 8 moreextracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes

• prostaglandin I2Reach from here →
  1. transport of (R)-3-hydroxybutanoate and L-lactate (cytosol to extracellular)
  2. Transport of 15-Keto-Prostaglandin F2A, Lactate Antiport
  3. Formation of Prostaglandin I2

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A8 and 1 moreextracellular space, cytosol

• prostaglandin F2alphaReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (S)-lactate + NAD(+) = pyruvate + NADH + H(+)
  3. prostaglandin F2alpha(out) + 2 (S)-lactate(in) = prostaglandin F2alpha(in) + 2 (S)-lactate(out)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 8 moreextracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 4 routes

• prostaglandin H2Reach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (S)-lactate + NAD(+) = pyruvate + NADH + H(+)
  3. prostaglandin H2(out) + 2 (S)-lactate(in) = prostaglandin H2(in) + 2 (S)-lactate(out)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 8 moreextracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes

• prostaglandin D2Reach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (S)-lactate + NAD(+) = pyruvate + NADH + H(+)
  3. prostaglandin D2(out) + 2 (S)-lactate(in) = prostaglandin D2(in) + 2 (S)-lactate(out)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 8 moreextracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 4 routes

• D-alanineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. D-alanine(out) + L-alanine(in) = D-alanine(in) + L-alanine(out)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 2 routes

• (6R)-5,10-methenyltetrahydrofolateReach from here →
  1. transport of (R)-3-hydroxybutanoate and formate (cytosol to extracellular)
  2. Formate:tetrahydrofolate ligase (ADP-forming)
  3. 5,10-Methenyltetrahydrofolate 5-hydrolase (decyclizing)

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 1 moreextracellular space, cytosolOne of 2 routes

• (13S)-hydroperoxy-(9Z,11E)-octadecadienoateReach from here →
  1. transport of (R)-3-hydroxybutanoate and L-lactate (cytosol to extracellular)
  2. (S)-Lactate:ferricytochrome-c 2-oxidoreductase
  3. 13(S)-HPODE to 13-oxy-radical-octadecadienoate conversion

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A8 and 2 moreextracellular space, cytosol, mitochondrial matrix

• guanidinoacetateReach from here →
  1. transport of (R)-3-hydroxybutanoate and formate (cytosol to extracellular)
  2. transport of chloride and formate (cytosol to extracellular)
  3. Transport of Guanidinoacetic Acid

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 1 moreextracellular space, cytosol

• sphing-4-enineReach from here →
  1. transport of (R)-3-hydroxybutanoate and acetate (cytosol to extracellular)
  2. N-(acetyl)-sphing-4-enine + H2O = sphing-4-enine + acetate
  3. N-(acetyl)-sphing-4-enine + H2O = sphing-4-enine + acetate

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 1 moreextracellular space, cytosol

• D-threonineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. D-threonine(out) + L-alanine(in) = D-threonine(in) + L-alanine(out)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 2 routes

• N-acetyl-alpha-D-glucosamine 1-phosphateReach from here →
  1. transport of (R)-3-hydroxybutanoate and acetate (cytosol to extracellular)
  2. N-acetyl-D-glucosamine 6-phosphate + H2O = D-glucosamine 6-phosphate + acetate
  3. N-acetyl-alpha-D-glucosamine 1-phosphate = N-acetyl-D-glucosamine 6-phosphate

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 2 moreextracellular space, cytosol

• CMP-N-acetyl-beta-neuraminateReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. N-Acetylneuraminate pyruvate-lyase (N-acetyl-D-mannosamine-forming)
  3. CTP:N-acetylneuraminate cytidylyltransferase

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, nucleusOne of 2 routes

• spermidineReach from here →
  1. transport of (R)-3-hydroxybutanoate and acetate (cytosol to extracellular)
  2. N(8)-acetylspermidine + H2O = spermidine + acetate
  3. N8-acetylspermidine to spermidine conversion

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 1 moreextracellular space, cytosolOne of 2 routes

• a 2-acyl-sn-glycero-3-phosphocholineReach from here →
  1. transport of (R)-3-hydroxybutanoate and acetate (cytosol to extracellular)
  2. N-(acetyl)-sphing-4-enine + H2O = sphing-4-enine + acetate
  3. N-(acetyl)-sphing-4-enine + a 1,2-diacyl-sn-glycero-3-phosphocholine = 1-O-acyl-N-(acetyl)-sphing-4-enine + a 2-acyl-sn-glycero-3-phosphocholine

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 2 moreextracellular space, cytosol

• L-tryptophanReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. transport of alanine and tryptophan (cytosol to extracellular)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrixOne of 10 routes

• glutathioneReach from here →
  1. transport of (R)-3-hydroxybutanoate and L-lactate (cytosol to extracellular)
  2. transport of L-lactate and urate (cytosol to extracellular)
  3. urate(out) + glutathione(in) = urate(in) + glutathione(out)

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A8 and 3 moreextracellular space, cytosol, inner side of the membrane, outer side of the membrane

• L-threonineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. L-threonine(out) + L-alanine(in) = L-threonine(in) + L-alanine(out)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 5 routes

• L-kynurenineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. L-kynurenine + H2O = anthranilate + L-alanine + H(+)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrix

• beta-alanineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. beta-alanine(out) + L-alanine(in) = beta-alanine(in) + L-alanine(out)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 4 routes

• 2-hydroxy-3-oxopropanoateReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. L-Serine:pyruvate aminotransferase
  3. hydroxypyruvate aldose-ketose-isomerase

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosolOne of 2 routes

• L-asparagineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. transport of alanine and asparagine (cytosol to extracellular)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrixOne of 11 routes

• L-phenylalanineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. transport of alanine and phenylalanine (cytosol to extracellular)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrixOne of 14 routes

• 3-hydroxy-L-kynurenineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. 3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + L-alanine + H(+)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrix

• a 1-acyl-sn-glycero-3-phosphocholineReach from here →
  1. transport of (R)-3-hydroxybutanoate and acetate (cytosol to extracellular)
  2. N-(acetyl)-sphing-4-enine + H2O = sphing-4-enine + acetate
  3. N-(acetyl)-sphing-4-enine + a 1,2-diacyl-sn-glycero-3-phosphocholine = 1-O-acyl-N-(acetyl)-sphing-4-enine + a 1-acyl-sn-glycero-3-phosphocholine

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 2 moreextracellular space, cytosol

• L-homocysteineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. N(1)-methylguanosine(37) in tRNA(Phe) + pyruvate + S-adenosyl-L-methionine = 4-demethylwyosine(37) in tRNA(Phe) + 5'-deoxyadenosine + L-methionine + CO2 + H2O
  3. S-methyl-L-methionine + L-homocysteine = 2 L-methionine + H(+)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 5 moreextracellular space, cytosol

• S-methyl-L-methionineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. N(1)-methylguanosine(37) in tRNA(Phe) + pyruvate + S-adenosyl-L-methionine = 4-demethylwyosine(37) in tRNA(Phe) + 5'-deoxyadenosine + L-methionine + CO2 + H2O
  3. S-methyl-L-methionine + L-homocysteine = 2 L-methionine + H(+)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 5 moreextracellular space, cytosol

• (2R)-2-phosphoglycerateReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. pyruvate kinase (dTDP)
  3. 2-phospho-D-glycerate hydro-lyase (phosphoenolpyruvate-forming)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 7 moreextracellular space, cytosol

• N(omega),N(omega)-dimethyl-L-arginineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. N(omega),N(omega)-dimethyl-L-arginine + pyruvate = 5-(3,3-dimethylguanidino)-2-oxopentanoate + L-alanine

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 3 moreextracellular space, cytosol, mitochondrial matrixOne of 7 routes

• trans-4-hydroxy-L-prolineReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. trans-4-hydroxy-L-proline(out) + L-alanine(in) + Na(+)(out) = trans-4-hydroxy-L-proline(in) + L-alanine(out) + Na(+)(in)

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrix, inner side of the membrane, outer side of the membraneOne of 2 routes

• cadaverineReach from here →
  1. transport of (R)-3-hydroxybutanoate and acetate (cytosol to extracellular)
  2. N-acetylcadaverine + H2O = cadaverine + acetate
  3. N-acetylcadaverine + H2O = cadaverine + acetate

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 1 moreextracellular space, cytosol

• kynurenateReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. 2-oxo-3-sulfanylpropanoate + [thioredoxin]-dithiol = [thioredoxin]-disulfide + hydrogen sulfide + pyruvate + H(+)
  3. 2-oxo-3-sulfanylpropanoate + L-kynurenine = kynurenate + L-cysteine + H2O

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosolOne of 2 routes

• (S)-3-amino-2-methylpropanoateReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. L-3-amino-isobutanoate:2-oxoglutarate aminotransferase

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 4 moreextracellular space, cytosol, mitochondrial matrix

• phosphoenolpyruvateReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. Pyruvate:carbon-dioxide ligase (ADP-forming)
  3. oxaloacetate + GTP = phosphoenolpyruvate + GDP + CO2

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 5 moreextracellular space, cytosol, mitochondrial matrix

• an S-substituted L-cysteineReach from here →
  1. transport of (R)-3-hydroxybutanoate and acetate (cytosol to extracellular)
  2. an N-acetyl-L-cysteine-S-conjugate + H2O = an S-substituted L-cysteine + acetate
  3. an N-acetyl-L-cysteine-S-conjugate + H2O = an S-substituted L-cysteine + acetate

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 1 moreextracellular space, cytosol

• D-glucosamine 6-phosphateReach from here →
  1. transport of (R)-3-hydroxybutanoate and acetate (cytosol to extracellular)
  2. N-acetyl-D-glucosamine 6-phosphate + H2O = D-glucosamine 6-phosphate + acetate
  3. D-glucosamine 6-phosphate + acetyl-CoA = N-acetyl-D-glucosamine 6-phosphate + CoA + H(+)

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 2 moreextracellular space, cytosolOne of 2 routes

• L-methionine (S)-S-oxideReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. N(1)-methylguanosine(37) in tRNA(Phe) + pyruvate + S-adenosyl-L-methionine = 4-demethylwyosine(37) in tRNA(Phe) + 5'-deoxyadenosine + L-methionine + CO2 + H2O
  3. [thioredoxin]-disulfide + L-methionine + H2O = L-methionine (S)-S-oxide + [thioredoxin]-dithiol

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 5 moreextracellular space, cytosol

• L-methionine (R)-S-oxideReach from here →
  1. transport of (R)-3-hydroxybutanoate and pyruvate (cytosol to extracellular)
  2. N(1)-methylguanosine(37) in tRNA(Phe) + pyruvate + S-adenosyl-L-methionine = 4-demethylwyosine(37) in tRNA(Phe) + 5'-deoxyadenosine + L-methionine + CO2 + H2O
  3. [thioredoxin]-disulfide + L-methionine + H2O = L-methionine (R)-S-oxide + [thioredoxin]-dithiol

  Catalysed by SLC16A4, SLC16A5, SLC16A3, SLC16A7 and 7 moreextracellular space, cytosol

• 4-aminobutanoateReach from here →
  1. transport of (R)-3-hydroxybutanoate and formate (cytosol to extracellular)
  2. transport of chloride and formate (cytosol to extracellular)
  3. transport of 4-aminobutyrate and chloride (cytosol to extracellular)

  Catalysed by SLC16A4, SLC16A5, SLC16A7, SLC16A1 and 2 moreextracellular space, cytosolOne of 4 routes