<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>2.0</version>
  <creation_date>2012-05-31 13:46:24 -0600</creation_date>
  <update_date>2015-09-13 12:56:10 -0600</update_date>
  <accession>ECMDB01149</accession>
  <m2m_id>M2MDB000275</m2m_id>
  <name>5-Aminolevulinic acid</name>
  <description>5-Aminolevulinic acid is an intermediate in heme synthesis.  This is the first compound in the porphyrin synthesis pathway. It is produced by the enzyme ALA synthase, from glycine and succinyl CoA. This reaction is known as the Shemin pathway. </description>
  <synonyms>
    <synonym>&amp;delta;-aminolevulinate</synonym>
    <synonym>&amp;delta;-aminolevulinic acid</synonym>
    <synonym>&amp;gamma;-aminolevulinate</synonym>
    <synonym>&amp;gamma;-aminolevulinic acid</synonym>
    <synonym>5-Amino-4-oxo-Pentanoate</synonym>
    <synonym>5-Amino-4-oxo-Pentanoic acid</synonym>
    <synonym>5-Amino-4-oxopentanoate</synonym>
    <synonym>5-Amino-4-oxopentanoic acid</synonym>
    <synonym>5-Amino-4-oxovalerate</synonym>
    <synonym>5-Amino-4-oxovaleric acid</synonym>
    <synonym>5-Amino-Levulinate</synonym>
    <synonym>5-Amino-Levulinic acid</synonym>
    <synonym>5-Aminolaevulinate</synonym>
    <synonym>5-Aminolaevulinic acid</synonym>
    <synonym>5-Aminolevulinate</synonym>
    <synonym>5-aminolevulinic acid</synonym>
    <synonym>ALA</synonym>
    <synonym>Aladerm</synonym>
    <synonym>Amino-levulinate</synonym>
    <synonym>Amino-levulinic acid</synonym>
    <synonym>Aminolevulinate</synonym>
    <synonym>Aminolevulinic acid</synonym>
    <synonym>Delta-Aminolevulinate</synonym>
    <synonym>Delta-Aminolevulinic acid</synonym>
    <synonym>g-Aminolevulinate</synonym>
    <synonym>g-Aminolevulinic acid</synonym>
    <synonym>Gamma-Aminolevulinate</synonym>
    <synonym>Gamma-Aminolevulinic acid</synonym>
    <synonym>Kerastick</synonym>
    <synonym>γ-Aminolevulinate</synonym>
    <synonym>γ-Aminolevulinic acid</synonym>
    <synonym>δ-Aminolevulinate</synonym>
    <synonym>δ-Aminolevulinic acid</synonym>
  </synonyms>
  <chemical_formula>C5H9NO3</chemical_formula>
  <average_molecular_weight>131.1299</average_molecular_weight>
  <monisotopic_moleculate_weight>131.058243159</monisotopic_moleculate_weight>
  <iupac_name>5-amino-4-oxopentanoic acid</iupac_name>
  <traditional_iupac>aminolevulinic acid</traditional_iupac>
  <cas_registry_number>106-60-5</cas_registry_number>
  <smiles>NCC(=O)CCC(O)=O</smiles>
  <inchi>InChI=1S/C5H9NO3/c6-3-4(7)1-2-5(8)9/h1-3,6H2,(H,8,9)</inchi>
  <inchikey>ZGXJTSGNIOSYLO-UHFFFAOYSA-N</inchikey>
  <state>Solid</state>
  <cellular_locations>
    <cellular_location>Cytosol</cellular_location>
  </cellular_locations>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>-2.85</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>0.12</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>1.73e+02 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
    <property>
      <kind>melting_point</kind>
      <value>156-158 oC</value>
    </property>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>-3.3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_acidic</kind>
    <value>4.05</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>7.84</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>5-amino-4-oxopentanoic acid</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>131.1299</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>131.058243159</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>NCC(=O)CCC(O)=O</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C5H9NO3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C5H9NO3/c6-3-4(7)1-2-5(8)9/h1-3,6H2,(H,8,9)</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>ZGXJTSGNIOSYLO-UHFFFAOYSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>80.39</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>30.45</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>12.55</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>4</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>4</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>donor_count</kind>
    <value>2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>physiological_charge</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formal_charge</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <pathways>
    <pathway>
      <name>Glycine, serine and threonine metabolism</name>
      <description/>
      <pathwhiz_id/>
      <kegg_map_id>ec00260</kegg_map_id>
      <subject/>
    </pathway>
    <pathway>
      <name>Porphyrin and chlorophyll metabolism</name>
      <description/>
      <pathwhiz_id/>
      <kegg_map_id>ec00860</kegg_map_id>
      <subject/>
    </pathway>
    <pathway>
      <name>ABC transporters</name>
      <description/>
      <pathwhiz_id/>
      <kegg_map_id>ec02010</kegg_map_id>
      <subject/>
    </pathway>
    <pathway>
      <name>Metabolic pathways</name>
      <description/>
      <pathwhiz_id/>
      <kegg_map_id>eco01100</kegg_map_id>
      <subject/>
    </pathway>
    <pathway>
      <name>Porphyrin metabolism</name>
      <description>The metabolism of porphyrin begins with with glutamic acid being processed by an ATP-driven glutamyl-tRNA synthetase by interacting with hydrogen ion and tRNA(Glu), resulting in amo, pyrophosphate and L-glutamyl-tRNA(Glu) Glutamic acid. Glutamic acid can be obtained as a result of L-glutamate metabolism pathway, glutamate / aspartate : H+ symporter GltP, glutamate:sodium symporter or a glutamate / aspartate ABC transporter .
L-glutamyl-tRNA(Glu) Glutamic acid interacts with a NADPH glutamyl-tRNA reductase resulting in a NADP, a tRNA(Glu) and a (S)-4-amino-5-oxopentanoate. 
This compound interacts with a glutamate-1-semialdehyde aminotransferase resulting a 5-aminolevulinic acid. This compound interacts with a porphobilinogen synthase resulting in a hydrogen ion, water and porphobilinogen. The latter compound interacts with water resulting in hydroxymethylbilane synthase resulting in ammonium, and hydroxymethylbilane. 
 Hydroxymethylbilane can either be dehydrated to produce uroporphyrinogen I or interact with a uroporphyrinogen III synthase resulting in a water molecule and a uroporphyrinogen III.
Uroporphyrinogen I interacts with hydrogen ion through a uroporphyrinogen decarboxylase resulting in a carbon dioxide and a coproporphyrinogen I
Uroporphyrinogen III can be metabolized into precorrin by interacting with a S-adenosylmethionine through a siroheme synthase resulting in hydrogen ion, an s-adenosylhomocysteine and a precorrin-1. On the other hand, Uroporphyrinogen III interacts with hydrogen ion through a uroporphyrinogen decarboxylase resulting in a carbon dioxide and a Coproporphyrinogen III.
Precorrin-1 reacts with a S-adenosylmethionine through a siroheme synthase resulting in a S-adenosylhomocysteine and a Precorrin-2. The latter compound is processed by a NAD dependent uroporphyrin III C-methyltransferase [multifunctional] resulting in a NADH and a sirohydrochlorin. This compound then interacts with Fe 2+ 
uroporphyrin III C-methyltransferase [multifunctional] resulting in a hydrogen ion and a siroheme. The siroheme is then processed in sulfur metabolism pathway.
Uroporphyrinogen III can be processed in anaerobic or aerobic condition. 
Anaerobic:
Uroporphyrinogen III interacts with an oxygen molecule, a hydrogen ion through a coproporphyrinogen III oxidase resulting in water, carbon dioxide and protoporphyrinogen IX. The latter compound then interacts with an 3 oxygen molecule through a protoporphyrinogen oxidase resulting in 3 hydrogen peroxide and a Protoporphyrin IX
Aerobic:
Uroporphyrinogen III reacts with S-adenosylmethionine through a coproporphyrinogen III dehydrogenase resulting in carbon dioxide, 5-deoxyadenosine, L-methionine and protoporphyrinogen IX. The latter compound interacts with a meanquinone through a protoporphyrinogen oxidase resulting in protoporphyrin IX.

The protoporphyrin IX interacts with Fe 2+ through a ferrochelatase resulting in a hydrogen ion and a ferroheme b. The ferroheme b can either be incorporated into the oxidative phosphorylation as a cofactor of the enzymes involved in that pathway or it can interact with hydrogen peroxide through a catalase HPII resulting in a heme D. Heme D can then be incorporated into the oxidative phosphyrlation pathway as a cofactor of the enzymes involved in that pathway. Ferroheme b can also interact with water and a farnesyl pyrophosphate through a heme O synthase resulting in a release of pyrophosphate and heme O. Heme O is then incorporated into the Oxidative phosphorylation pathway.
</description>
      <pathwhiz_id>PW000936</pathwhiz_id>
      <kegg_map_id/>
      <subject>Metabolic</subject>
    </pathway>
    <pathway>
      <name>tetrapyrrole biosynthesis I</name>
      <ecocyc_pathway_id>PWY-5188</ecocyc_pathway_id>
    </pathway>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>701</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>702</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>703</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>704</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>705</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>706</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1427</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1457</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>3255</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30332</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30333</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30457</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30458</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30917</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30918</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>31281</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>31282</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>37948</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>174789</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>1650</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146630</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146631</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146632</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146633</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146634</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146635</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146636</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146637</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146638</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146639</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146640</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146641</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146642</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146643</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146644</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146645</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146646</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146647</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146648</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>146649</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1433</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1434</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1435</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>5049</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>5050</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>5051</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>5052</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>5053</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>5060</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>5061</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>20222</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>20223</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>20224</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>20249</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>20250</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>20251</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>21773</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>21774</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>21775</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>21800</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>21801</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>21802</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>439128</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>445596</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>445597</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrTwoD</type>
      <spectrum_id>1591</spectrum_id>
    </spectrum>
  </spectra>
  <hmdb_id>HMDB01149</hmdb_id>
  <pubchem_compound_id>137</pubchem_compound_id>
  <chemspider_id>134</chemspider_id>
  <kegg_id>C00430</kegg_id>
  <chebi_id>17549</chebi_id>
  <biocyc_id>5-AMINO-LEVULINATE</biocyc_id>
  <het_id/>
  <wikipidia>5-Aminolevulinic acid</wikipidia>
  <foodb_id/>
  <general_references>
    <reference>
      <reference_text>Keseler, I. M., Collado-Vides, J., Santos-Zavaleta, A., Peralta-Gil, M., Gama-Castro, S., Muniz-Rascado, L., Bonavides-Martinez, C., Paley, S., Krummenacker, M., Altman, T., Kaipa, P., Spaulding, A., Pacheco, J., Latendresse, M., Fulcher, C., Sarker, M., Shearer, A. G., Mackie, A., Paulsen, I., Gunsalus, R. P., Karp, P. D. (2011). "EcoCyc: a comprehensive database of Escherichia coli biology." Nucleic Acids Res 39:D583-D590.</reference_text>
      <pubmed_id>21097882</pubmed_id>
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    <reference>
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      <pubmed_id>22080510</pubmed_id>
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    <reference>
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    <reference>
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      <pubmed_id>4039724</pubmed_id>
    </reference>
    <reference>
      <reference_text>Santos MA, Belo VG, Santos G: Effectiveness of photodynamic therapy with topical 5-aminolevulinic acid and intense pulsed light versus intense pulsed light alone in the treatment of acne vulgaris: comparative study. Dermatol Surg. 2005 Aug;31(8 Pt 1):910-5.</reference_text>
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    <reference>
      <reference_text>van den Akker JT, Boot K, Vernon DI, Brown SB, Groenendijk L, van Rhoon GC, Sterenborg HJ: Effect of elevating the skin temperature during topical ALA application on in vitro ALA penetration through mouse skin and in vivo PpIX production in human skin. Photochem Photobiol Sci. 2004 Mar;3(3):263-7. Epub 2004 Feb 13.</reference_text>
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      <pubmed_id>1442789</pubmed_id>
    </reference>
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      <reference_text>Winkler A, Muller-Goymann CC: Comparative permeation studies for delta-aminolevulinic acid and its n-butylester through stratum corneum and artificial skin constructs. Eur J Pharm Biopharm. 2002 May;53(3):281-7.</reference_text>
      <pubmed_id>11976015</pubmed_id>
    </reference>
    <reference>
      <reference_text>Hexyl aminolevulinate: 5-ALA hexylester, 5-ALA hexylesther, aminolevulinic acid hexyl ester, hexaminolevulinate, hexyl 5-aminolevulinate, P 1206. Drugs R D. 2005;6(4):235-8.</reference_text>
      <pubmed_id>15991884</pubmed_id>
    </reference>
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      <pubmed_id>16752943</pubmed_id>
    </reference>
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      <reference_text>Fritsch C, Batz J, Bolsen K, Schulte KW, Zumdick M, Ruzicka T, Goerz G: Ex vivo application of delta-aminolevulinic acid induces high and specific porphyrin levels in human skin tumors: possible basis for selective photodynamic therapy. Photochem Photobiol. 1997 Jul;66(1):114-8.</reference_text>
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    </reference>
  </general_references>
  <synthesis_reference>Goli?ski J., D?browski Z., Obukowicz B., Kami?ski J., Be?dowicz M., Kwa?ny M.: "Synthesis of 5-aminolevulinic acid (5-ALA)", ICRI Annual Report '99, 2000, 119-122. </synthesis_reference>
  <msds_url>http://hmdb.ca/system/metabolites/msds/000/001/032/original/HMDB01149.pdf?1358461682</msds_url>
  <enzymes>
    <enzyme>
      <name>Delta-aminolevulinic acid dehydratase</name>
      <uniprot_id>P0ACB2</uniprot_id>
      <uniprot_name>HEM2_ECOLI</uniprot_name>
      <gene_name>hemB</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P0ACB2.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Glutamate-1-semialdehyde 2,1-aminomutase</name>
      <uniprot_id>P23893</uniprot_id>
      <uniprot_name>GSA_ECOLI</uniprot_name>
      <gene_name>hemL</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P23893.xml</protein_url>
    </enzyme>
  </enzymes>
  <transporters>
  </transporters>
  <reactions>
    <reaction_text>(S)-4-Amino-5-oxopentanoate &lt;&gt; 5-Aminolevulinic acid</reaction_text>
    <kegg_reaction_id>R02272</kegg_reaction_id>
    <ecocyc_id>GSAAMINOTRANS-RXN</ecocyc_id>
    <pw_reaction_id/>
    <reaction_text>2 5-Aminolevulinic acid &lt;&gt; Hydrogen ion +2 Water + Porphobilinogen</reaction_text>
    <kegg_reaction_id>R00036</kegg_reaction_id>
    <ecocyc_id>PORPHOBILSYNTH-RXN</ecocyc_id>
    <pw_reaction_id/>
    <reaction_text>2 5-Aminolevulinic acid &lt;&gt; Porphobilinogen +2 Water</reaction_text>
    <kegg_reaction_id>R00036</kegg_reaction_id>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>5-Aminolevulinic acid &lt;&gt; (S)-4-Amino-5-oxopentanoate</reaction_text>
    <kegg_reaction_id>R02272</kegg_reaction_id>
    <ecocyc_id>GSAAMINOTRANS-RXN</ecocyc_id>
    <pw_reaction_id/>
    <reaction_text>5-Aminolevulinic acid &lt;&gt; Hydrogen ion + Water + Porphobilinogen</reaction_text>
    <kegg_reaction_id>R00036</kegg_reaction_id>
    <ecocyc_id>PORPHOBILSYNTH-RXN</ecocyc_id>
    <pw_reaction_id/>
    <reaction_text>(S)-4-Amino-5-oxopentanoate &gt; 5-Aminolevulinic acid</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>2 5-Aminolevulinic acid &gt; Porphobilinogen +2 Water</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>8 (S)-4-Amino-5-oxopentanoate &gt;8 5-Aminolevulinic acid</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id>PW_R003474</pw_reaction_id>
    <reaction_text>8 5-Aminolevulinic acid &gt;4 Hydrogen ion +8 Water +4 Porphobilinogen</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id>PW_R003475</pw_reaction_id>
    <reaction_text>(S)-4-Amino-5-oxopentanoate &lt;&gt;5 5-Aminolevulinic acid</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>5 5-Aminolevulinic acid &lt;&gt; (S)-4-Amino-5-oxopentanoate</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>2 5-Aminolevulinic acid &lt;&gt; Hydrogen ion +2 Water + Porphobilinogen</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>2 5-Aminolevulinic acid &lt;&gt; Porphobilinogen +2 Water</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>(S)-4-Amino-5-oxopentanoate &lt;&gt;5 5-Aminolevulinic acid</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>2 5-Aminolevulinic acid &lt;&gt; Hydrogen ion +2 Water + Porphobilinogen</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
  </reactions>
  <concentrations>
  </concentrations>
</compound>
