CHEBI:15699
362,296 routes · scope human · up to 3 steps · built 6 October 2026 · Reactions · API
909 compounds within 3 steps: 20 in 1, 274 in 2, 615 in 3
Three steps
- transport of glutamine and homoserine (cytosol to extracellular)
- L-glutamine:D-fructose-6-phosphate isomerase (deaminating)
- alpha-D-glucosamine 6-phosphate + H2O = beta-D-fructose 6-phosphate + NH4(+)
Catalysed by SLC7A5, GFPT2, GFPT1, GNPDA1 and 1 moreextracellular space, cytosol
- Acetylation of Homoserine
- acyl-CoA:sphingosine N-acyltransferase
- a 2-acyl-sn-glycero-3-phosphocholine + an acyl-CoA = a 1,2-diacyl-sn-glycero-3-phosphocholine + CoA
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 1 moremitochondrial matrix, Golgi apparatusOne of 2 routes
- transport of glycine and homoserine (cytosol to extracellular)
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- alcohol dehydrogenase (formaldehyde)
Catalysed by SLC7A5, GSS, ADH1C, ADH1A and 4 moreextracellular space, cytosolOne of 2 routes
- transport of alanine and homoserine (cytosol to extracellular)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- (R)-3-amino-2-methylpropanoate + pyruvate = 2-methyl-3-oxopropanoate + L-alanine
Catalysed by SLC7A5, AGXT2extracellular space, cytosol, mitochondrial matrix
- transport of cysteine and homoserine (cytosol to extracellular)
- L-Cysteine:oxygen oxidoreductase
- 3-sulfino-L-alanine + H(+) = hypotaurine + CO2
Catalysed by SLC7A5, CDO1, GADL1, CSADextracellular space, cytosol
- Acetylation of Homoserine
- acyl-CoA:sphingosine N-acyltransferase
- a 1-acyl-sn-glycero-3-phospho-(1D-myo-inositol) + an acyl-CoA = a 1,2-diacyl-sn-glycero-3-phospho-(1D-myo-inositol) + CoA
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 2 moremitochondrial matrix, Golgi apparatus
- Acetylation of Homoserine
- acyl-CoA:sphingosine N-acyltransferase
- sn-glycerol 3-phosphate + an acyl-CoA = a 1-acyl-sn-glycero-3-phosphate + CoA
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 4 moremitochondrial matrix, Golgi apparatus
- transport of glycine and homoserine (cytosol to extracellular)
- N(omega),N(omega)-dimethyl-L-arginine + glyoxylate = 5-(3,3-dimethylguanidino)-2-oxopentanoate + glycine
- Nomega,Nomega'-dimethyl-L-arginine dimethylamidohydrolase
Catalysed by SLC7A5, AGXT2, DDAH1extracellular space, cytosolOne of 2 routes
- transport of glycine and homoserine (cytosol to extracellular)
- succinyl-CoA:glycine C-succinyltransferase (decarboxylating)
- 5-aminolevulinate hydro-lyase (adding 5-aminolevulinate and cyclizing
Catalysed by SLC7A5, ALAS1, ALAS2, CPNE7 and 1 moreextracellular space, cytosol, mitochondrial matrixOne of 2 routes
- transport of homoserine and threonine (cytosol to extracellular)
- L-threonine acetaldehyde-lyase (glycine-forming)
- phosphoethanolamine + H2O = acetaldehyde + NH4(+) + phosphate
Catalysed by ETNPPLextracellular space, cytosol
- transport of glycine and homoserine (cytosol to extracellular)
- sarcosine + O2 + H2O = formaldehyde + glycine + H2O2
- (6S)-5,6,7,8-tetrahydrofolyl-(gamma-L-Glu)(n) + N,N-dimethylglycine + oxidized [electron-transfer flavoprotein] + H(+) = (6R)-5,10-methylenetetrahydrofolyl-(gamma-L-Glu)(n) + sarcosine + reduced [electron-transfer flavoprotein]
Catalysed by SLC7A5, PIPOX, DMGDHextracellular space, cytosolOne of 2 routes
- transport of arginine and homoserine (cytosol to extracellular)
- Putrescine Export via Putrescine/Arginine Antiporter
- acetyl-CoA:putrescine N-acetyltransferase
Catalysed by SLC7A6, SLC3A2, SLC7A7, SAT1 and 1 moreextracellular space, cytosolOne of 2 routes
- transport of arginine and homoserine (cytosol to extracellular)
- Putrescine Export via Putrescine/Arginine Antiporter
- putrescine + O2 + H2O = 4-aminobutanal + H2O2 + NH4(+)
Catalysed by SLC7A6, SLC3A2, SLC7A7, AOC1extracellular space, cytosol
- transport of homoserine and ornithine (cytosol to extracellular)
- L-ornithine + 2-oxoglutarate = L-glutamate 5-semialdehyde + L-glutamate
- L-glutamate 5-semialdehyde + phosphate + NADP(+) = L-glutamyl 5-phosphate + NADPH + H(+)
Catalysed by SLC7A6, OAT, ALDH18A1extracellular space, cytosol
- transport of glycine and homoserine (cytosol to extracellular)
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- Glutathione: 5-HPETE oxidoreductase
Catalysed by SLC7A5, GSS, GPX5, GPX1 and 7 moreextracellular space, cytosolOne of 36 routes
- Acetylation of Homoserine
- Palmitate:CoA ligase (AMP-forming)
- Palmitoyl-CoA:L-serine C-palmitoyltransferase (decarboxylating)
Catalysed by SLC27A2, ACSL4, ACSL3, ACSL1 and 7 moremitochondrial matrix, cytosol
- transport of glycine and homoserine (cytosol to extracellular)
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- transport of GSH and sulfotaurolithocholate (cytosol to extracellular)
Catalysed by SLC7A5, GSS, SLCO1A2, SLCO1B3extracellular space, cytosolOne of 2 routes
- Acetylation of Homoserine
- Palmitate:CoA ligase (AMP-forming)
- glyceronephosphate O-acyltransferase (DHAP)
Catalysed by SLC27A2, ACSL4, ACSL3, ACSL1 and 5 moremitochondrial matrix, cytosol, peroxisome
- transport of homoserine and lysine (cytosol to extracellular)
- N6-(L-1,3-Dicarboxypropyl)-L-lysine:NADP+ oxidoreductase (L-lysine-forming)
- L-saccharopine + NAD(+) + H2O = (S)-2-amino-6-oxohexanoate + L-glutamate + NADH + H(+)
Catalysed by SLC7A6, AASSextracellular space, cytosol, mitochondrial matrix
- transport of arginine and homoserine (cytosol to extracellular)
- Putrescine Export via Putrescine/Arginine Antiporter
- N(1)-acetylspermidine + O2 + H2O = 3-acetamidopropanal + putrescine + H2O2
Catalysed by SLC7A6, SLC3A2, SLC7A7, PAOXextracellular space, cytosolOne of 2 routes
- transport of homoserine and lysine (cytosol to extracellular)
- deoxyhypusine synthase (1,3-diaminopropane)
- primary-amine oxidase (1,3-diaminopropane)
Catalysed by SLC7A6, DHPS, AOC2, AOC1 and 1 moreextracellular space, cytosolOne of 2 routes
- transport of glycine and homoserine (cytosol to extracellular)
- gamma-L-glutamyl-L-cysteine + glycine + ATP = glutathione + ADP + phosphate + H(+)
- glutathione = L-cysteinylglycine + 5-oxo-L-proline
Catalysed by SLC7A5, GSS, CHAC2, CHAC1extracellular space, cytosol
- transport of glycine and homoserine (cytosol to extracellular)
- N(omega),N(omega)-dimethyl-L-arginine + glyoxylate = 5-(3,3-dimethylguanidino)-2-oxopentanoate + glycine
- 2-oxopentanoate + N(omega),N(omega)-dimethyl-L-arginine = 5-(3,3-dimethylguanidino)-2-oxopentanoate + L-2-aminopentanoate
Catalysed by SLC7A5, AGXT2extracellular space, cytosolOne of 2 routes
- transport of alanine and homoserine (cytosol to extracellular)
- oxaloacetate + L-alanine = L-aspartate + pyruvate
- 1-(5-Phosphoribosyl)-5-amino-4-carboxyimidazole:L-aspartate ligase (ADP-forming)
Catalysed by SLC7A5, AGXT2, PAICSextracellular space, cytosolOne of 2 routes
- transport of glycine and homoserine (cytosol to extracellular)
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- transport of GSH and thyroxine (cytosol to extracellular)
Catalysed by SLC7A5, GSS, SLCO1A2, SLCO1B3extracellular space, cytosolOne of 4 routes
- transport of glycine and homoserine (cytosol to extracellular)
- glycine + 2-oxoglutarate = glyoxylate + L-glutamate
- L-kynurenine + glyoxylate = kynurenate + glycine + H2O
Catalysed by SLC7A5, AADAT, KYAT3extracellular space, cytosolOne of 20 routes
- transport of glycine and homoserine (cytosol to extracellular)
- N(omega),N(omega)-dimethyl-L-arginine + glyoxylate = 5-(3,3-dimethylguanidino)-2-oxopentanoate + glycine
- 2-oxohexanoate + N(omega),N(omega)-dimethyl-L-arginine = L-2-aminohexanoate + 5-(3,3-dimethylguanidino)-2-oxopentanoate
Catalysed by SLC7A5, AGXT2extracellular space, cytosolOne of 2 routes
- transport of glycine and homoserine (cytosol to extracellular)
- 5,10-Methylenetetrahydrofolate:glycine hydroxymethyltransferase
- phosphoribosylaminoimidazolecarboxamide formyltransferase (10-formyl-THF)
Catalysed by SLC7A5, SHMT1, ATICextracellular space, cytosol
- Acetylation of Homoserine
- diamine N-acetyltransferase (N1-acetylspermidine)
- N8-acetylspermidine to spermidine conversion
Catalysed by SAT1, SAT2mitochondrial matrix, cytosolOne of 3 routes
- Acetylation of Homoserine
- N1,N12-diacetylspermine to N1-acetylspermine conversion
- N1,N12-diacetylspermine to N1-acetylspermine conversion
No catalyst recordedmitochondrial matrix, cytosolOne of 2 routes
- Acetylation of Homoserine
- long-chain-fatty-acid-CoA ligase (EPA)
- (5Z,8Z,11Z,14Z,17Z)-eicosapentaenoyl-CoA hydrolase
Catalysed by SLC27A2, ACSL4, ACSL3, ACSL1 and 7 moremitochondrial matrix, cytosolOne of 2 routes
- transport of histidine and homoserine (cytosol to extracellular)
- L-histidine carboxy-lyase (histamine-forming)
- S-Adenosyl-L-methionine:histamine N-tele-methyltransferase
Catalysed by SLC7A6, HDC, HNMTextracellular space, cytosolOne of 3 routes
- Acetylation of Homoserine
- acyl-CoA:sphingosine N-acyltransferase
- a 1-acyl-sn-glycero-3-phosphate + an acyl-CoA = a 1,2-diacyl-sn-glycero-3-phosphate + CoA
Catalysed by ASAH1, ACER2, ACER1, ASAH2 and 13 moremitochondrial matrix, Golgi apparatus
- transport of alanine and homoserine (cytosol to extracellular)
- (R)-3-Amino-2-methylpropanoate:pyruvate aminotransferase
- (3S)-citramalyl-CoA = pyruvate + acetyl-CoA
Catalysed by SLC7A5, AGXT2, CLYBLextracellular space, cytosol, mitochondrial matrixOne of 2 routes
- transport of alanine and homoserine (cytosol to extracellular)
- L-kynurenine + H2O = anthranilate + L-alanine + H(+)
- 2-oxoadipate + L-kynurenine = L-2-aminoadipate + kynurenate + H2O
Catalysed by SLC7A5, KYNU, AADATextracellular space, cytosol
- transport of glycine and homoserine (cytosol to extracellular)
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- Sulfide:glutathione,quinone oxidoreductase
Catalysed by SLC7A5, GSS, SQORextracellular space, cytosol, mitochondrial matrixOne of 8 routes
- transport of glycine and homoserine (cytosol to extracellular)
- N(omega)-methyl-L-arginine + glyoxylate = 5-(3-methylguanidino)-2-oxopentanoate + glycine
- N(omega)-methyl-L-arginine + H2O = L-citrulline + methylamine
Catalysed by SLC7A5, AGXT2, DDAH1extracellular space, cytosol
- transport of glycine and homoserine (cytosol to extracellular)
- (9Z)-octadecenoyl-CoA + glycine = N-(9Z-octadecenoyl)glycine + CoA + H(+)
- N-(9Z-octadecenoyl)glycine + 2 L-ascorbate + O2 = N-(9Z-octadecenoyl)-(2S)-hydroxyglycine + 2 monodehydro-L-ascorbate radical + H2O
Catalysed by SLC7A5, GLYATL3, GLYATL2, PAMextracellular space, cytosolOne of 5 routes
- transport of glycine and homoserine (cytosol to extracellular)
- L-tyrosine + glyoxylate = 3-(4-hydroxyphenyl)pyruvate + glycine
- (6R)-L-erythro-5,6,7,8-tetrahydrobiopterin + L-phenylalanine + O2 = (4aS,6R)-4a-hydroxy-L-erythro-5,6,7,8-tetrahydrobiopterin + L-tyrosine
Catalysed by SLC7A5, AADAT, PAHextracellular space, cytosolOne of 4 routes
- transport of homoserine and leucine (cytosol to extracellular)
- L-Leucine:2-oxoglutarate aminotransferase
- 4-methyl-2-oxopentanoate reduction
Catalysed by SLC7A5, BCAT2, SDR42E2, AKR1B15 and 16 moreextracellular space, cytosol, mitochondrial matrix
- transport of alanine and homoserine (cytosol to extracellular)
- L-kynurenine + H2O = anthranilate + L-alanine + H(+)
- an L-alpha-amino acid(in) + L-kynurenine(out) = an L-alpha-amino acid(out) + L-kynurenine(in)
Catalysed by SLC7A5, KYNU, SLC7A11extracellular space, cytosol, inner side of the membrane, outer side of the membraneOne of 2 routes
- transport of glycine and homoserine (cytosol to extracellular)
- transport of chloride and glycine (cytosol to extracellular)
- transport of 4-aminobutyrate and chloride (cytosol to extracellular)
Catalysed by SLC7A5, SLC6A9, SLC6A14, SLC6A12extracellular space, cytosolOne of 7 routes
- transport of glycine and homoserine (cytosol to extracellular)
- gamma-L-glutamyl-L-cysteine:glycine ligase (ADP-forming)
- transport of dopamine and GSH (cytosol to extracellular)
Catalysed by SLC7A5, GSS, SLCO1A2, SLCO1B3extracellular space, cytosolOne of 4 routes
- Acetylation of Homoserine
- long-chain-fatty-acid-CoA ligase ((6Z,9Z)-octadecadienoic acid)
- (9Z,12Z)-octadecadienoyl-CoA + a 1-acyl-sn-glycero-3-phosphocholine = 1-acyl-2-(9Z,12Z)-octadecadienoyl-sn-glycero-3-phosphocholine + CoA
Catalysed by SLC27A2, ACSL4, ACSL3, ACSL1 and 5 moremitochondrial matrix, cytosol
- transport of glycine and homoserine (cytosol to extracellular)
- bile acid-CoA:amino acid N-acyltransferase (glycine)
- sulfotransferase (glycolithocholate)
Catalysed by SLC7A5, BAAT, SULT2A1extracellular space, cytosolOne of 3 routes