L-tryptophan

Three steps

• betaine aldehydeReach from here →
  1. transport of cysteine and tryptophan (cytosol to extracellular)
  2. Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
  3. choline + A = betaine aldehyde + AH2

  Catalysed by SLC7A5, MOCOS, CHDHextracellular space, cytosolOne of 4 routes

• CHEBI:15746Reach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. bile acid-CoA: amino acid N-acyltransferase
  3. diamine N-acetyltransferase (N1-acetylspermine)

  Catalysed by SLC7A5, BAAT, SAT1, SAT2extracellular space, cytosol, peroxisomeOne of 2 routes

• hexadecanoic acidReach from here →
  1. Transport of L-Tryptophan by Atb0 Transporter
  2. Carnitine Transport by Atb0
  3. Utilized Transport

  Catalysed by SLC6A14extracellular space, cytosol, endoplasmic reticulumOne of 2 routes

• malonateReach from here →
  1. Transport of L-Tryptophan by Atb0 Transporter
  2. transport of chloride and sulfate (cytosol to extracellular)
  3. malonate(in) + sulfate(out) = malonate(out) + sulfate(in)

  Catalysed by SLC6A14, SLC26A6, SLC25A14, SLC25A30 and 1 moreextracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes

• bromideReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
  3. 2-bromoacetaldehyde:glutathione S-(formylmethyl)transferase

  Catalysed by SLC7A5, GSS, MGST3, GSTA4 and 15 moreextracellular space, cytosolOne of 2 routes

• keto-D-fructose 6-phosphateReach from here →
  1. transport of glutamine and tryptophan (cytosol to extracellular)
  2. L-glutamine:D-fructose-6-phosphate isomerase (deaminating)
  3. D-glucosamine-6-phosphate aminohydrolase (ketol isomerizing)

  Catalysed by SLC7A5, GFPT2, GFPT1, GNPDA1 and 1 moreextracellular space, cytosol

• N-acetyl-beta-D-glucosaminylamineReach from here →
  1. L-tryptophan(out) + L-aspartate(in) = L-tryptophan(in) + L-aspartate(out)
  2. N(4)-(beta-N-acetyl-D-glucosaminyl)-L-asparagine + H2O = N-acetyl-beta-D-glucosaminylamine + L-aspartate + H(+)
  3. N(4)-(beta-N-acetyl-D-glucosaminyl)-L-asparagine + H2O = N-acetyl-beta-D-glucosaminylamine + L-aspartate + H(+)

  Catalysed by SLC7A13, AGAinner side of the membrane, outer side of the membrane

• methanethiolReach from here →
  1. transport of cysteine and tryptophan (cytosol to extracellular)
  2. L-cysteine hydrogen-sulfide-lyase (deaminating
  3. methanethiol + O2 + H2O = hydrogen sulfide + formaldehyde + H2O2 + H(+)

  Catalysed by SLC7A5, CTH, SELENBP1extracellular space, cytosol

• a halide anionReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. gamma-L-glutamyl-L-cysteine + glycine + ATP = glutathione + ADP + phosphate + H(+)
  3. RX + glutathione = an S-substituted glutathione + a halide anion + H(+)

  Catalysed by SLC7A5, GSS, GSTT4, GSTA4 and 21 moreextracellular space, cytosol

• CHEBI:16132Reach from here →
  1. transport of threonine and tryptophan (cytosol to extracellular)
  2. L-threonine acetaldehyde-lyase (glycine-forming)
  3. deoxyribose-phosphate aldolase

  Catalysed by SLC7A5, DERAextracellular space, cytosol

• homogentisateReach from here →
  1. transport of tryptophan and tyrosine (cytosol to extracellular)
  2. L-tyrosine:2-oxoglutarate aminotransferase
  3. 4-Hydroxyphenylpyruvate:oxygen oxidoreductase (hydroxylating,decarboxylating)

  Catalysed by SLC7A5, GOT2, GOT1, TAT and 1 moreextracellular space, cytosolOne of 2 routes

• CHEBI:16174Reach from here →
  1. L-Tryptophan -tRNA(Trp) ligase (AMP-forming)
  2. glycyl-tRNA(gly) phosphorylation
  3. 2'-deoxyadenosine 5'-diphosphate:oxidized-thioredoxin 2'-oxidoreductase

  Catalysed by WARS1, TXN, RRM1, RRM2 and 2 morecytosol

• 2-methyl-3-oxopropanoic acidReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. (S)-3-amino-2-methylpropionate transaminase (2-methyl-3-oxopropanoate)

  Catalysed by SLC7A5, AGXT2, ABATextracellular space, cytosol, mitochondrial matrixOne of 3 routes

• succinic semialdehydeReach from here →
  1. Transport of L-Tryptophan by Atb0 Transporter
  2. transport of 4-aminobutyrate and chloride (cytosol to extracellular)
  3. 4-aminobutanoate:2-oxoglutarate aminotransferase

  Catalysed by SLC6A14, SLC6A12, ABATextracellular space, cytosol, mitochondrial matrix

• CHEBI:16284Reach from here →
  1. L-Tryptophan -tRNA(Trp) ligase (AMP-forming)
  2. glycyl-tRNA(gly) phosphorylation
  3. 2'-deoxyadenosine 5'-triphosphate:oxydized-thioredoxin 2'-oxidoreductase

  Catalysed by WARS1, TXN, RRM1, RRM2 and 2 morecytosol

• nitriteReach from here →
  1. transport of arginine and tryptophan (cytosol to extracellular)
  2. L-Arginine, NADPH:Oxygen Oxidoreductase (Nitric-Oxide-Forming)
  3. 4 nitric oxide + O2 + 2 H2O = 4 nitrite + 4 H(+)

  Catalysed by SLC7A6, NOS3, NOS1, NOS2 and 1 moreextracellular space, cytosol

• 11-cis-retinolReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. bile acid-CoA: amino acid N-acyltransferase
  3. Palmitoyl-CoA:retinol O-acyltransferase

  Catalysed by SLC7A5, BAAT, DGAT1, LRAT and 3 moreextracellular space, cytosol, peroxisome

• cob(II)alaminReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
  3. 2 cob(II)alamin + A + 2 H2O + 2 H(+) = 2 aquacob(III)alamin + AH2

  Catalysed by SLC7A5, MOCOS, MTRRextracellular space, cytosol

• lithocholic acidReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
  3. transport of GSH and lithocholate (cytosol to extracellular)

  Catalysed by SLC7A5, GSS, SLCO1A2, SLCO1B3extracellular space, cytosolOne of 2 routes

• (R)-carnitineReach from here →
  1. Transport of L-Tryptophan by Atb0 Transporter
  2. transport of betaine and chloride (cytosol to extracellular)
  3. glycine betaine(out) + (R)-carnitine(in) = glycine betaine(in) + (R)-carnitine(out)

  Catalysed by SLC6A14, SLC6A12, SLC22A5extracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes

• 2-phenylacetaldehydeReach from here →
  1. transport of phenylalanine and tryptophan (cytosol to extracellular)
  2. L-phenylalanine carboxy-lyase (phenylethylamine-forming)
  3. Phenethylamine:oxygen oxidoreductase (deaminating)

  Catalysed by SLC7A5, DDC, AOC2, AOC1 and 3 moreextracellular space, cytosolOne of 2 routes

• CHEBI:16497Reach from here →
  1. L-Tryptophan -tRNA(Trp) ligase (AMP-forming)
  2. glycyl-tRNA(gly) phosphorylation
  3. 2'-deoxyguanosine 5'-triphosphate:oxydized-thioredoxin 2'-oxidoreductase

  Catalysed by WARS1, TXN, RRM1, RRM2 and 2 morecytosol

• selaneReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. L-selenocysteine selenide-lyase (L-alanine-forming)
  3. L-selenocysteine selenide-lyase (L-alanine-forming)

  Catalysed by SLC7A5, SCLYextracellular space, cytosolOne of 3 routes

• anthranilateReach from here →
  1. L-tryptophan:oxygen 2,3-oxidoreductase (decyclizing)
  2. arylformamidase (L-formylkynurenine)
  3. L-kynurenine + H2O = anthranilate + L-alanine + H(+)

  Catalysed by IDO1, TDO2, IDO2, AFMID and 1 morecytosol

• D-alanyl-D-alanineReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. transport of D-alanine and glycine (cytosol to extracellular)
  3. Formation of Alanylalanine

  Catalysed by SLC7A5, SLC3A2, SLC7A10extracellular space, cytosol

• (S)-lactateReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. (S)-lactate + NAD(+) = pyruvate + NADH + H(+)

  Catalysed by SLC7A5, AGXT2, LDHA, LDHB and 3 moreextracellular space, cytosol, mitochondrial matrixOne of 2 routes

• CHEBI:16668Reach from here →
  1. transport of cysteine and tryptophan (cytosol to extracellular)
  2. L-Cysteine:oxygen oxidoreductase
  3. 3-sulfino-L-alanine carboxy-lyase

  Catalysed by SLC7A5, CDO1, GAD1, CSADextracellular space, cytosol

• quinolinic acidReach from here →
  1. Transport of L-Tryptophan by Atb0 Transporter
  2. transport of chloride and sulfate (cytosol to extracellular)
  3. Transport of Quinolinic Acid

  Catalysed by SLC6A14, SLC26A6, SLC22A6extracellular space, cytosolOne of 2 routes

• 3'-deoxy-3',4'-didehydro-CTPReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
  3. CTP + AH2 + S-adenosyl-L-methionine = 3'-deoxy-3',4'-didehydro-CTP + 5'-deoxyadenosine + L-methionine + A + H2O + H(+)

  Catalysed by SLC7A5, MOCOS, RSAD2extracellular space, cytosol

• cyanamideReach from here →
  1. transport of arginine and tryptophan (cytosol to extracellular)
  2. L-Arginine amidinohydrolase
  3. urea = cyanamide + H2O

  Catalysed by SLC7A6, ARG1, CA1, CA2extracellular space, cytosol

• pyridoxineReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. L-selenocysteine selenide-lyase (L-alanine-forming)
  3. pyridoxine-5'-phosphate phosphohydrolase

  Catalysed by SLC7A5, SCLY, PHOSPHO2, PDXPextracellular space, cytosolOne of 2 routes

• (S)-2-hydroxyglutarateReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. Mo-molybdopterin + L-cysteine + AH2 = thio-Mo-molybdopterin + L-alanine + A + H2O
  3. (S)-2-hydroxyglutarate + A = 2-oxoglutarate + AH2

  Catalysed by SLC7A5, MOCOS, L2HGDHextracellular space, cytosol

• enol-phenylpyruvateReach from here →
  1. transport of phenylalanine and tryptophan (cytosol to extracellular)
  2. Phenylalanine Transaminase, Mitochondrial
  3. 3-phenylpyruvate = enol-phenylpyruvate

  Catalysed by SLC7A5, GOT2, TAT, MIFextracellular space, cytosol, mitochondrial matrix

• formaldehydeReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. S-Adenosyl-L-methionine:glycine N-methyltransferase
  3. sarcosine:oxygen oxidoreductase (demethylating)

  Catalysed by SLC7A5, GNMT, PIPOX, SARDHextracellular space, cytosol, peroxisomeOne of 6 routes

• 3-fumarylpyruvateReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. 3-fumarylpyruvate + H2O = fumarate + pyruvate + H(+)

  Catalysed by SLC7A5, AGXT2, FAHD1extracellular space, cytosol, mitochondrial matrix

• pantetheine 4'-phosphateReach from here →
  1. transport of cysteine and tryptophan (cytosol to extracellular)
  2. (R)-4'-phosphopantothenate:L-cysteine ligase
  3. N-[(R)-4'-Phosphopantothenoyl]-L-cysteine carboxy-lyase

  Catalysed by SLC7A5, PPCS, PPCDCextracellular space, cytosolOne of 2 routes

• trans-1,2-dithiane-4,5-diolReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. L-selenocysteine selenide-lyase (L-alanine-forming)
  3. selenocysteine lyase (dithiothreitol)

  Catalysed by SLC7A5, SCLYextracellular space, cytosol

• creatineReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. L-Arginine:glycine amidinotransferase
  3. S-Adenosyl-L-methionine:guanidinoacetate N-methyltransferase

  Catalysed by SLC7A5, GATM, GAMTextracellular space, cytosolOne of 2 routes

• bilirubin IXalphaReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
  3. transport of bilirubin and GSH (cytosol to extracellular)

  Catalysed by SLC7A5, GSS, SLCO1A2, SLCO1B3extracellular space, cytosolOne of 2 routes

• (R)-3-hydroxybutyric acidReach from here →
  1. L-tryptophan:oxygen 2,3-oxidoreductase (decyclizing)
  2. arylformamidase (L-formylkynurenine)
  3. transport of (R)-3-hydroxybutanoate and formate (cytosol to extracellular)

  Catalysed by IDO1, TDO2, IDO2, AFMID and 4 morecytosol, extracellular spaceOne of 4 routes

• 2-aminoacrylic acidReach from here →
  1. transport of tryptophan and tyrosine (cytosol to extracellular)
  2. thyroid peroxidase (iodine)
  3. thyroid peroxidase (3,5-diiodo-L-tyrosine)

  Catalysed by SLC7A5, TPOextracellular space, cytosol

• taurolithocholateReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
  3. transport of GSH and taurolithocholate (cytosol to extracellular)

  Catalysed by SLC7A5, GSS, SLCO1A2, SLCO1B3extracellular space, cytosolOne of 4 routes

• 3-hydroxypyruvateReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. L-serine + pyruvate = 3-hydroxypyruvate + L-alanine

  Catalysed by SLC7A5, AGXT2, AGXTextracellular space, cytosol, mitochondrial matrixOne of 2 routes

• CHEBI:17208Reach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
  3. glutathione:dehydroascorbate oxidoreductase

  Catalysed by SLC7A5, GSSextracellular space, cytosol

• (S)-4-hydroxymandelateReach from here →
  1. transport of tryptophan and tyrosine (cytosol to extracellular)
  2. L-tyrosine:2-oxoglutarate aminotransferase
  3. 3-(4-hydroxyphenyl)pyruvate + O2 = (S)-4-hydroxymandelate + CO2

  Catalysed by SLC7A5, GOT2, GOT1, TAT and 1 moreextracellular space, cytosol

• homocysteineReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
  3. Formation of Homocystine

  Catalysed by SLC7A5, GSSextracellular space, cytosol

• anilineReach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. bile acid-CoA: amino acid N-acyltransferase
  3. Acetyl-CoA:arylamine N-acetyltransferase

  Catalysed by SLC7A5, BAAT, NAT2, NAT1extracellular space, cytosol, peroxisome

• aceneuramateReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. aceneuramate = aldehydo-N-acetyl-D-mannosamine + pyruvate

  Catalysed by SLC7A5, AGXT2, NPLextracellular space, cytosol, mitochondrial matrix

• CHEBI:17312Reach from here →
  1. transport of glycine and tryptophan (cytosol to extracellular)
  2. bile acid-CoA: amino acid N-acyltransferase
  3. N1,N12-diacetylspermine to N1-acetylspermine conversion

  Catalysed by SLC7A5, BAATextracellular space, cytosol, peroxisomeOne of 2 routes

• 5'-deoxyadenosineReach from here →
  1. transport of alanine and tryptophan (cytosol to extracellular)
  2. (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
  3. N(1)-methylguanosine(37) in tRNA(Phe) + pyruvate + S-adenosyl-L-methionine = 4-demethylwyosine(37) in tRNA(Phe) + 5'-deoxyadenosine + L-methionine + CO2 + H2O

  Catalysed by SLC7A5, AGXT2, TYW1B, TYW1extracellular space, cytosol, mitochondrial matrixOne of 5 routes