<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>2.0</version>
  <creation_date>2012-05-31 10:22:16 -0600</creation_date>
  <update_date>2015-09-13 12:56:06 -0600</update_date>
  <accession>ECMDB00159</accession>
  <m2m_id>M2MDB000061</m2m_id>
  <name>L-Phenylalanine</name>
  <description>Phenylalanine is an essential amino acid and the precursor for the amino acid tyrosine. Phenylalanine is a precursor of the neurotransmitters called catecholamines, which are adrenalin-like substances. Normal metabolism of phenylalanine requires biopterin, iron, niacin, vitamin B6, copper and vitamin C. Phenylalanine and tyrosine, like L-dopa, produce a catecholamine effect.</description>
  <synonyms>
    <synonym>(-)-b-Phenylalanine</synonym>
    <synonym>(-)-beta-Phenylalanine</synonym>
    <synonym>(-)-β-Phenylalanine</synonym>
    <synonym>(L)-Phenylalanine</synonym>
    <synonym>(S)-(-)-Phenylalanine</synonym>
    <synonym>(S)-2-amino-3-phenylpropanoate</synonym>
    <synonym>(S)-2-amino-3-phenylpropanoic acid</synonym>
    <synonym>(S)-2-Amino-3-phenylpropionate</synonym>
    <synonym>(S)-2-Amino-3-phenylpropionic acid</synonym>
    <synonym>(S)-a-amino-b-Phenylpropionate</synonym>
    <synonym>(S)-a-amino-b-Phenylpropionic acid</synonym>
    <synonym>(S)-a-amino-Benzenepropanoate</synonym>
    <synonym>(S)-a-amino-Benzenepropanoic acid</synonym>
    <synonym>(S)-a-Aminobenzenepropanoate</synonym>
    <synonym>(S)-a-Aminobenzenepropanoic acid</synonym>
    <synonym>(S)-a-Aminohydrocinnamate</synonym>
    <synonym>(S)-a-Aminohydrocinnamic acid</synonym>
    <synonym>(S)-alpha-Amino-benzenepropanoate</synonym>
    <synonym>(S)-alpha-Amino-benzenepropanoic acid</synonym>
    <synonym>(S)-alpha-Amino-beta-phenylpropionate</synonym>
    <synonym>(S)-alpha-Amino-beta-phenylpropionic acid</synonym>
    <synonym>(S)-alpha-Aminobenzenepropanoate</synonym>
    <synonym>(S)-alpha-Aminobenzenepropanoic acid</synonym>
    <synonym>(S)-alpha-Aminohydrocinnamate</synonym>
    <synonym>(S)-alpha-Aminohydrocinnamic acid</synonym>
    <synonym>(S)-Phenylalanine</synonym>
    <synonym>(S)-α-amino-Benzenepropanoate</synonym>
    <synonym>(S)-α-amino-Benzenepropanoic acid</synonym>
    <synonym>(S)-α-amino-β-Phenylpropionate</synonym>
    <synonym>(S)-α-amino-β-Phenylpropionic acid</synonym>
    <synonym>(S)-α-Aminobenzenepropanoate</synonym>
    <synonym>(S)-α-Aminobenzenepropanoic acid</synonym>
    <synonym>(S)-α-Aminohydrocinnamate</synonym>
    <synonym>(S)-α-Aminohydrocinnamic acid</synonym>
    <synonym>3-Phenyl-L-alanine</synonym>
    <synonym>a-Aminohydrocinnamate</synonym>
    <synonym>a-Aminohydrocinnamic acid</synonym>
    <synonym>Alpha-Aminohydrocinnamate</synonym>
    <synonym>Alpha-Aminohydrocinnamic acid</synonym>
    <synonym>b-Phenyl-a-alanine</synonym>
    <synonym>b-Phenyl-L-alanine</synonym>
    <synonym>b-Phenylalanine</synonym>
    <synonym>Beta-Phenyl-alpha-alanine</synonym>
    <synonym>Beta-Phenyl-L-alanine</synonym>
    <synonym>Beta-Phenylalanine</synonym>
    <synonym>Endophenyl</synonym>
    <synonym>F</synonym>
    <synonym>L-2-Amino-3-phenylpropionate</synonym>
    <synonym>L-2-Amino-3-phenylpropionic acid</synonym>
    <synonym>Phe</synonym>
    <synonym>Phenyl-Alanine</synonym>
    <synonym>Phenylalamine</synonym>
    <synonym>Phenylalanine</synonym>
    <synonym>α-Aminohydrocinnamate</synonym>
    <synonym>α-Aminohydrocinnamic acid</synonym>
    <synonym>β-Phenyl-L-alanine</synonym>
    <synonym>β-Phenyl-α-alanine</synonym>
    <synonym>β-Phenylalanine</synonym>
  </synonyms>
  <chemical_formula>C9H11NO2</chemical_formula>
  <average_molecular_weight>165.1891</average_molecular_weight>
  <monisotopic_moleculate_weight>165.078978601</monisotopic_moleculate_weight>
  <iupac_name>(2S)-2-amino-3-phenylpropanoic acid</iupac_name>
  <traditional_iupac>L-phenylalanine</traditional_iupac>
  <cas_registry_number>63-91-2</cas_registry_number>
  <smiles>N[C@@H](CC1=CC=CC=C1)C(O)=O</smiles>
  <inchi>InChI=1S/C9H11NO2/c10-8(9(11)12)6-7-4-2-1-3-5-7/h1-5,8H,6,10H2,(H,11,12)/t8-/m0/s1</inchi>
  <inchikey>COLNVLDHVKWLRT-QMMMGPOBSA-N</inchikey>
  <state>Solid</state>
  <cellular_locations>
    <cellular_location>Cytosol</cellular_location>
    <cellular_location>Extra-organism</cellular_location>
    <cellular_location>Periplasm</cellular_location>
  </cellular_locations>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>-1.35</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-1.60</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>4.14e+00 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
    <property>
      <kind>melting_point</kind>
      <value>283 oC</value>
    </property>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>-1.2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_acidic</kind>
    <value>2.47</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>9.45</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>(2S)-2-amino-3-phenylpropanoic acid</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>165.1891</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>165.078978601</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>N[C@@H](CC1=CC=CC=C1)C(O)=O</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C9H11NO2</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C9H11NO2/c10-8(9(11)12)6-7-4-2-1-3-5-7/h1-5,8H,6,10H2,(H,11,12)/t8-/m0/s1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>COLNVLDHVKWLRT-QMMMGPOBSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>63.32</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>45.12</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>17.03</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>3</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>Phenylalanine metabolism</name>
      <description>The pathways of the metabolism of phenylalaline begins with the conversion of chorismate to prephenate through a P-protein (chorismate mutase:pheA). Prephenate then interacts with a hydrogen ion through the same previous enzyme resulting in a release of carbon dioxide, water and a phenolpyruvic acid. Three enzymes those enconde by tyrB, aspC and ilvE are involved in catalyzing the third step of these pathways, all three can contribute to the synthesis of phenylalanine: only tyrB and aspC contribute to biosynthesis of tyrosine.
Phenolpyruvic acid can also be obtained from a reversivle reaction with ammonia, a reduced acceptor and a D-amino acid dehydrogenase, resulting in a water, an acceptor and a D-phenylalanine, which can be then transported into the periplasmic space by aromatic amino acid exporter.
L-phenylalanine also interacts in two reversible reactions, one involved with oxygen through a catalase peroxidase resulting in a carbon dioxide and 2-phenylacetamide. The other reaction involved an interaction with oxygen through a phenylalanine aminotransferase resulting in a oxoglutaric acid and phenylpyruvic acid.
L-phenylalanine can be imported into the cytoplasm through an aromatic amino acid:H+ symporter AroP.
The compound can also be imported into the periplasmic space through a transporter: L-amino acid efflux transporter.</description>
      <pathwhiz_id>PW000921</pathwhiz_id>
      <kegg_map_id>ec00360</kegg_map_id>
      <subject>Metabolic</subject>
    </pathway>
    <pathway>
      <name>Phenylalanine, tyrosine and tryptophan biosynthesis</name>
      <description/>
      <pathwhiz_id/>
      <kegg_map_id>ec00400</kegg_map_id>
      <subject/>
    </pathway>
    <pathway>
      <name>Aminoacyl-tRNA biosynthesis</name>
      <description/>
      <pathwhiz_id/>
      <kegg_map_id>ec00970</kegg_map_id>
      <subject/>
    </pathway>
    <pathway>
      <name>ABC transporters</name>
      <description/>
      <pathwhiz_id/>
      <kegg_map_id>ec02010</kegg_map_id>
      <subject/>
    </pathway>
    <pathway>
      <name>inner membrane transport</name>
      <description>list of inner membrane transport complexes, transporting compounds from the periplasmic space to the cytosol
This pathway should be updated regularly with the new inner membrae transports added</description>
      <pathwhiz_id>PW000786</pathwhiz_id>
      <kegg_map_id/>
      <subject>Metabolic</subject>
    </pathway>
    <pathway>
      <name>phenylalanine biosynthesis</name>
      <description>The pathways of biosynthesis of phenylalaline and tyrosine are intimately connected. First step of both pathways is the conversion of chorismate to prephenate, the third step of both is the conversion of a ketoacid to the aminoacid through transamination. The two pathways differ only in the second step of their three-step reaction sequences: In the case of phenylalanine biosynthesis, a dehydratase converts prephenate to phenylpyruvate(reaction occurs slowly in the absence of enzymic activity); in the case of tyrosine biosynthesis, a dehydrogenase converts prephenate to p-hydroxyphenylpyruvate. Also in both pathways the first two steps are catalyzed by two distinc active sites on a single protein. Thus the first step of each pathway can be catalyzed by two enzyme: those associated with both the phenylalanine specific dehydratase and the tyrosine specific dehydrogenase. Three enzymes those enconde by tyrB, aspC and ilvE are involved in catalyzing the third step of these pathways, all three can contribute to the synthesis of phenylalanine: only tyrB and aspC contribute to biosynthesis of tyrosine</description>
      <pathwhiz_id>PW000807</pathwhiz_id>
      <kegg_map_id/>
      <subject>Metabolic</subject>
    </pathway>
    <pathway>
      <name>tRNA Charging 2</name>
      <description>This pathway groups together all E. coli tRNA charging reactions.</description>
      <pathwhiz_id>PW000803</pathwhiz_id>
      <kegg_map_id/>
      <subject>Metabolic</subject>
    </pathway>
    <pathway>
      <name>tRNA charging</name>
      <description>This pathway groups together all E. coli tRNA charging reactions.</description>
      <pathwhiz_id>PW000799</pathwhiz_id>
      <kegg_map_id/>
      <subject>Metabolic</subject>
    </pathway>
    <pathway>
      <name>tRNA charging</name>
      <ecocyc_pathway_id>TRNA-CHARGING-PWY</ecocyc_pathway_id>
    </pathway>
    <pathway>
      <name>phenylalanine biosynthesis I</name>
      <ecocyc_pathway_id>PHESYN</ecocyc_pathway_id>
    </pathway>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>389</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>390</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>391</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1252</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1304</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>2830</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30069</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30210</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30607</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30732</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>30771</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>31032</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>31033</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>37329</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>138002</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>145736</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1051754</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1051755</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1051757</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::EiMs</type>
      <spectrum_id>1975</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>1118</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>1177</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142590</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142591</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142592</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142593</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142594</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142595</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142596</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142597</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142598</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142599</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142600</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142601</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142602</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142603</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142604</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142605</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142606</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142607</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142608</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>142609</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>166451</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>248</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>249</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>250</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3191</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3192</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3193</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3194</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3195</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3196</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3197</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3198</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3199</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3200</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3201</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3202</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3203</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3204</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3205</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3206</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3207</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3208</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3209</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3210</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3211</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>3212</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrTwoD</type>
      <spectrum_id>975</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrTwoD</type>
      <spectrum_id>1177</spectrum_id>
    </spectrum>
  </spectra>
  <hmdb_id>HMDB00159</hmdb_id>
  <pubchem_compound_id>6140</pubchem_compound_id>
  <chemspider_id>5910</chemspider_id>
  <kegg_id>C00079</kegg_id>
  <chebi_id>17295</chebi_id>
  <biocyc_id>PHE</biocyc_id>
  <het_id>PHE_LFZW</het_id>
  <wikipidia>L-Phenylalanine</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>
    </reference>
    <reference>
      <reference_text>Kanehisa, M., Goto, S., Sato, Y., Furumichi, M., Tanabe, M. (2012). "KEGG for integration and interpretation of large-scale molecular data sets." Nucleic Acids Res 40:D109-D114.</reference_text>
      <pubmed_id>22080510</pubmed_id>
    </reference>
    <reference>
      <reference_text>Vijayendran, C., Barsch, A., Friehs, K., Niehaus, K., Becker, A., Flaschel, E. (2008). "Perceiving molecular evolution processes in Escherichia coli by comprehensive metabolite and gene expression profiling." Genome Biol 9:R72.</reference_text>
      <pubmed_id>18402659</pubmed_id>
    </reference>
    <reference>
      <reference_text>van der Werf, M. J., Overkamp, K. M., Muilwijk, B., Coulier, L., Hankemeier, T. (2007). "Microbial metabolomics: toward a platform with full metabolome coverage." Anal Biochem 370:17-25.</reference_text>
      <pubmed_id>17765195</pubmed_id>
    </reference>
    <reference>
      <reference_text>Winder, C. L., Dunn, W. B., Schuler, S., Broadhurst, D., Jarvis, R., Stephens, G. M., Goodacre, R. (2008). "Global metabolic profiling of Escherichia coli cultures: an evaluation of methods for quenching and extraction of intracellular metabolites." Anal Chem 80:2939-2948.</reference_text>
      <pubmed_id>18331064</pubmed_id>
    </reference>
    <reference>
      <reference_text>Bennett, B. D., Kimball, E. H., Gao, M., Osterhout, R., Van Dien, S. J., Rabinowitz, J. D. (2009). "Absolute metabolite concentrations and implied enzyme active site occupancy in Escherichia coli." Nat Chem Biol 5:593-599.</reference_text>
      <pubmed_id>19561621</pubmed_id>
    </reference>
    <reference>
      <reference_text>Ishii, N., Nakahigashi, K., Baba, T., Robert, M., Soga, T., Kanai, A., Hirasawa, T., Naba, M., Hirai, K., Hoque, A., Ho, P. Y., Kakazu, Y., Sugawara, K., Igarashi, S., Harada, S., Masuda, T., Sugiyama, N., Togashi, T., Hasegawa, M., Takai, Y., Yugi, K., Arakawa, K., Iwata, N., Toya, Y., Nakayama, Y., Nishioka, T., Shimizu, K., Mori, H., Tomita, M. (2007). "Multiple high-throughput analyses monitor the response of E. coli to perturbations." Science 316:593-597.</reference_text>
      <pubmed_id>17379776</pubmed_id>
    </reference>
    <reference>
      <reference_text>Sreekumar A, Poisson LM, Rajendiran TM, Khan AP, Cao Q, Yu J, Laxman B, Mehra R, Lonigro RJ, Li Y, Nyati MK, Ahsan A, Kalyana-Sundaram S, Han B, Cao X, Byun J, Omenn GS, Ghosh D, Pennathur S, Alexander DC, Berger A, Shuster JR, Wei JT, Varambally S, Beecher C, Chinnaiyan AM: Metabolomic profiles delineate potential role for sarcosine in prostate cancer progression. Nature. 2009 Feb 12;457(7231):910-4.</reference_text>
      <pubmed_id>19212411</pubmed_id>
    </reference>
    <reference>
      <reference_text>Silwood CJ, Lynch E, Claxson AW, Grootveld MC: 1H and (13)C NMR spectroscopic analysis of human saliva.  J Dent Res. 2002 Jun;81(6):422-7.</reference_text>
      <pubmed_id>12097436</pubmed_id>
    </reference>
    <reference>
      <reference_text>Nicholson JK, O'Flynn MP, Sadler PJ, Macleod AF, Juul SM, Sonksen PH: Proton-nuclear-magnetic-resonance studies of serum, plasma and urine from fasting normal and diabetic subjects. Biochem J. 1984 Jan 15;217(2):365-75.</reference_text>
      <pubmed_id>6696735</pubmed_id>
    </reference>
    <reference>
      <reference_text>Engelborghs S, Marescau B, De Deyn PP: Amino acids and biogenic amines in cerebrospinal fluid of patients with Parkinson's disease. Neurochem Res. 2003 Aug;28(8):1145-50.</reference_text>
      <pubmed_id>12834252</pubmed_id>
    </reference>
    <reference>
      <reference_text>Sjoberg S, Eriksson M, Nordin C: L-thyroxine treatment and neurotransmitter levels in the cerebrospinal fluid of hypothyroid patients: a pilot study. Eur J Endocrinol. 1998 Nov;139(5):493-7.</reference_text>
      <pubmed_id>9849813</pubmed_id>
    </reference>
    <reference>
      <reference_text>Hagenfeldt L, Bjerkenstedt L, Edman G, Sedvall G, Wiesel FA: Amino acids in plasma and CSF and monoamine metabolites in CSF: interrelationship in healthy subjects. J Neurochem. 1984 Mar;42(3):833-7.</reference_text>
      <pubmed_id>6198473</pubmed_id>
    </reference>
    <reference>
      <reference_text>Peng CT, Wu KH, Lan SJ, Tsai JJ, Tsai FJ, Tsai CH: Amino acid concentrations in cerebrospinal fluid in children with acute lymphoblastic leukemia undergoing chemotherapy. Eur J Cancer. 2005 May;41(8):1158-63. Epub 2005 Apr 14.</reference_text>
      <pubmed_id>15911239</pubmed_id>
    </reference>
    <reference>
      <reference_text>Cynober LA: Plasma amino acid levels with a note on membrane transport: characteristics, regulation, and metabolic significance. Nutrition. 2002 Sep;18(9):761-6.</reference_text>
      <pubmed_id>12297216</pubmed_id>
    </reference>
    <reference>
      <reference_text>Rainesalo S, Keranen T, Palmio J, Peltola J, Oja SS, Saransaari P: Plasma and cerebrospinal fluid amino acids in epileptic patients.  Neurochem Res. 2004 Jan;29(1):319-24.</reference_text>
      <pubmed_id>14992292</pubmed_id>
    </reference>
    <reference>
      <reference_text>Deng C, Shang C, Hu Y, Zhang X: Rapid diagnosis of phenylketonuria and other aminoacidemias by quantitative analysis of amino acids in neonatal blood spots by gas chromatography-mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci. 2002 Jul 25;775(1):115-20.</reference_text>
      <pubmed_id>12101068</pubmed_id>
    </reference>
    <reference>
      <reference_text>Wannemacher RW Jr, Klainer AS, Dinterman RE, Beisel WR: The significance and mechanism of an increased serum phenylalanine-tyrosine ratio during infection. Am J Clin Nutr. 1976 Sep;29(9):997-1006.</reference_text>
      <pubmed_id>822705</pubmed_id>
    </reference>
    <reference>
      <reference_text>Doellgast GJ, Meis PJ: Use of specific inhibitors to disciminate alkaline phosphatase isoenzymes originating from human liver, placenta and intestine: absence of meconial alkaline phosphatase in maternal serum. Clin Chem. 1979 Jul;25(7):1230-3.</reference_text>
      <pubmed_id>455643</pubmed_id>
    </reference>
    <reference>
      <reference_text>Kersemans V, Cornelissen B, Kersemans K, Bauwens M, Achten E, Dierckx RA, Mertens J, Slegers G: In vivo characterization of 123/125I-2-iodo-L-phenylalanine in an R1M rhabdomyosarcoma athymic mouse model as a potential tumor tracer for SPECT. J Nucl Med. 2005 Mar;46(3):532-9.</reference_text>
      <pubmed_id>15750170</pubmed_id>
    </reference>
    <reference>
      <reference_text>Klassen P, Furst P, Schulz C, Mazariegos M, Solomons NW: Plasma free amino acid concentrations in healthy Guatemalan adults and in patients with classic dengue. Am J Clin Nutr. 2001 Mar;73(3):647-52.</reference_text>
      <pubmed_id>11237944</pubmed_id>
    </reference>
  </general_references>
  <synthesis_reference>Zhou, Hua; Zhong, Yao; Sun, Guanghai; Wei, Ping.  Preparation of L-phenylalanine by an aqueous two-phase system.  Huaxue Fanying Gongcheng Yu Gongyi  (2006),  22(2),  146-150.</synthesis_reference>
  <msds_url>http://hmdb.ca/system/metabolites/msds/000/000/110/original/HMDB00159.pdf?1358894687</msds_url>
  <enzymes>
    <enzyme>
      <name>Aspartate aminotransferase</name>
      <uniprot_id>P00509</uniprot_id>
      <uniprot_name>AAT_ECOLI</uniprot_name>
      <gene_name>aspC</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P00509.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Aromatic-amino-acid aminotransferase</name>
      <uniprot_id>P04693</uniprot_id>
      <uniprot_name>TYRB_ECOLI</uniprot_name>
      <gene_name>tyrB</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P04693.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Histidinol-phosphate aminotransferase</name>
      <uniprot_id>P06986</uniprot_id>
      <uniprot_name>HIS8_ECOLI</uniprot_name>
      <gene_name>hisC</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P06986.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Phenylalanyl-tRNA synthetase beta chain</name>
      <uniprot_id>P07395</uniprot_id>
      <uniprot_name>SYFB_ECOLI</uniprot_name>
      <gene_name>pheT</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P07395.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Phenylalanyl-tRNA synthetase alpha chain</name>
      <uniprot_id>P08312</uniprot_id>
      <uniprot_name>SYFA_ECOLI</uniprot_name>
      <gene_name>pheS</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P08312.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>P-protein</name>
      <uniprot_id>P0A9J8</uniprot_id>
      <uniprot_name>PHEA_ECOLI</uniprot_name>
      <gene_name>pheA</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P0A9J8.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Catalase-peroxidase</name>
      <uniprot_id>P13029</uniprot_id>
      <uniprot_name>KATG_ECOLI</uniprot_name>
      <gene_name>katG</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P13029.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Branched-chain-amino-acid aminotransferase</name>
      <uniprot_id>P0AB80</uniprot_id>
      <uniprot_name>ILVE_ECOLI</uniprot_name>
      <gene_name>ilvE</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P0AB80.xml</protein_url>
    </enzyme>
  </enzymes>
  <transporters>
    <enzyme>
      <name>Uncharacterized amino-acid ABC transporter ATP-binding protein yecC</name>
      <uniprot_id>P37774</uniprot_id>
      <uniprot_name>YECC_ECOLI</uniprot_name>
      <gene_name>yecC</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P37774.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Inner membrane amino-acid ABC transporter permease protein yecS</name>
      <uniprot_id>P0AFT2</uniprot_id>
      <uniprot_name>YECS_ECOLI</uniprot_name>
      <gene_name>yecS</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P0AFT2.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Aromatic amino acid transport protein AroP</name>
      <uniprot_id>P15993</uniprot_id>
      <uniprot_name>AROP_ECOLI</uniprot_name>
      <gene_name>aroP</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P15993.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Phenylalanine-specific permease</name>
      <uniprot_id>P24207</uniprot_id>
      <uniprot_name>PHEP_ECOLI</uniprot_name>
      <gene_name>pheP</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P24207.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Outer membrane protein N</name>
      <uniprot_id>P77747</uniprot_id>
      <uniprot_name>OMPN_ECOLI</uniprot_name>
      <gene_name>ompN</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P77747.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Inner membrane protein yddG</name>
      <uniprot_id>P46136</uniprot_id>
      <uniprot_name>YDDG_ECOLI</uniprot_name>
      <gene_name>yddG</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P46136.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Outer membrane pore protein E</name>
      <uniprot_id>P02932</uniprot_id>
      <uniprot_name>PHOE_ECOLI</uniprot_name>
      <gene_name>phoE</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P02932.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Outer membrane protein F</name>
      <uniprot_id>P02931</uniprot_id>
      <uniprot_name>OMPF_ECOLI</uniprot_name>
      <gene_name>ompF</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P02931.xml</protein_url>
    </enzyme>
    <enzyme>
      <name>Outer membrane protein C</name>
      <uniprot_id>P06996</uniprot_id>
      <uniprot_name>OMPC_ECOLI</uniprot_name>
      <gene_name>ompC</gene_name>
      <protein_url>http://ecmdb.ca/proteins/P06996.xml</protein_url>
    </enzyme>
  </transporters>
  <reactions>
    <reaction_text>Adenosine triphosphate + L-Phenylalanine + tRNA(Phe) + tRNA(Phe) &lt;&gt; Adenosine monophosphate + L-Phenylalanyl-tRNA(Phe) + Pyrophosphate + L-Phenylalanyl-tRNA(Phe)</reaction_text>
    <kegg_reaction_id>R03660</kegg_reaction_id>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>alpha-Ketoglutarate + L-Phenylalanine &lt;&gt; L-Glutamate + Phenylpyruvic acid</reaction_text>
    <kegg_reaction_id>R00694</kegg_reaction_id>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>L-Arogenate &lt;&gt; L-Phenylalanine + Water + Carbon dioxide</reaction_text>
    <kegg_reaction_id>R00691</kegg_reaction_id>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>L-Phenylalanine + Oxygen &lt;&gt; 2-Phenylacetamide + Carbon dioxide</reaction_text>
    <kegg_reaction_id>R00698</kegg_reaction_id>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>Adenosine triphosphate + L-Phenylalanine + tRNA(Phe) &lt;&gt; Adenosine monophosphate + Pyrophosphate + L-Phenylalanyl-tRNA(Phe)</reaction_text>
    <kegg_reaction_id>R03660</kegg_reaction_id>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>Phenylpyruvic acid + L-Glutamate &lt;&gt; L-Phenylalanine + Oxoglutaric acid</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id>PHEAMINOTRANS-RXN</ecocyc_id>
    <pw_reaction_id/>
    <reaction_text>Adenosine triphosphate + L-Phenylalanine + tRNA(Phe) &gt; Adenosine monophosphate + Pyrophosphate + L-phenylalanyl-tRNA(Phe)</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>L-Phenylalanine + Adenosine triphosphate + Hydrogen ion + tRNA(Phe) + L-Phenylalanine &gt; Adenosine monophosphate + Pyrophosphate + L-phenylalanyl-tRNA(Phe)</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id>PW_R002837</pw_reaction_id>
    <reaction_text>Phenylpyruvic acid + L-Glutamic acid + L-Glutamate &gt; Oxoglutaric acid + L-Phenylalanine + L-Phenylalanine</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id>PW_R002861</pw_reaction_id>
    <reaction_text>L-Phenylalanine + Oxygen + L-Phenylalanine &lt;&gt; Oxoglutaric acid + Phenylpyruvic acid</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id>PW_R003456</pw_reaction_id>
    <reaction_text>L-Phenylalanine + Oxygen + L-Phenylalanine &lt;&gt; Carbon dioxide + Sinapyl alcohol</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id>PW_R003458</pw_reaction_id>
    <reaction_text>Adenosine triphosphate + L-Phenylalanine + tRNA(Phe) &lt;&gt; Adenosine monophosphate + L-Phenylalanyl-tRNA(Phe) + Pyrophosphate</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>alpha-Ketoglutarate + L-Phenylalanine &lt;&gt; L-Glutamate + Phenylpyruvic acid</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>Adenosine triphosphate + L-Phenylalanine + tRNA(Phe) &lt;&gt; Adenosine monophosphate + L-Phenylalanyl-tRNA(Phe) + Pyrophosphate</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>alpha-Ketoglutarate + L-Phenylalanine &lt;&gt; L-Glutamate + Phenylpyruvic acid</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
    <reaction_text>alpha-Ketoglutarate + L-Phenylalanine &lt;&gt; L-Glutamate + Phenylpyruvic acid</reaction_text>
    <kegg_reaction_id/>
    <ecocyc_id/>
    <pw_reaction_id/>
  </reactions>
  <concentrations>
    <growth_media>Gutnick minimal complete medium (4.7 g/L KH2PO4; 13.5 g/L K2HPO4; 1 g/L K2SO4; 0.1 g/L MgSO4-7H2O; 10 mM NH4Cl) with 4 g/L glucose</growth_media>
    <growth_system>Shake flask and filter culture</growth_system>
    <concentration>18.2</concentration>
    <concentration_units>uM</concentration_units>
    <internal/>
    <error>0.0</error>
    <temperature>37 oC</temperature>
    <strain>K12 NCM3722</strain>
    <growth_status>Mid-Log Phase</growth_status>
    <molecules>72800</molecules>
    <molecules_error>0</molecules_error>
    <reference>
      <reference_text>Bennett, B. D., Kimball, E. H., Gao, M., Osterhout, R., Van Dien, S. J., Rabinowitz, J. D. (2009). "Absolute metabolite concentrations and implied enzyme active site occupancy in Escherichia coli." Nat Chem Biol 5:593-599.</reference_text>
      <pubmed_id>19561621</pubmed_id>
    </reference>
    <growth_media>Gutnick minimal complete medium (4.7 g/L KH2PO4; 13.5 g/L K2HPO4; 1 g/L K2SO4; 0.1 g/L MgSO4-7H2O; 10 mM NH4Cl) with 4 g/L glycerol</growth_media>
    <growth_system>Shake flask and filter culture</growth_system>
    <concentration>42.1</concentration>
    <concentration_units>uM</concentration_units>
    <internal/>
    <error>0.0</error>
    <temperature>37 oC</temperature>
    <strain>K12 NCM3722</strain>
    <growth_status>Mid-Log Phase</growth_status>
    <molecules>168400</molecules>
    <molecules_error>0</molecules_error>
    <reference>
      <reference_text>Bennett, B. D., Kimball, E. H., Gao, M., Osterhout, R., Van Dien, S. J., Rabinowitz, J. D. (2009). "Absolute metabolite concentrations and implied enzyme active site occupancy in Escherichia coli." Nat Chem Biol 5:593-599.</reference_text>
      <pubmed_id>19561621</pubmed_id>
    </reference>
    <growth_media>Gutnick minimal complete medium (4.7 g/L KH2PO4; 13.5 g/L K2HPO4; 1 g/L K2SO4; 0.1 g/L MgSO4-7H2O; 10 mM NH4Cl) with 4 g/L acetate</growth_media>
    <growth_system>Shake flask and filter culture</growth_system>
    <concentration>27.4</concentration>
    <concentration_units>uM</concentration_units>
    <internal/>
    <error>0.0</error>
    <temperature>37 oC</temperature>
    <strain>K12 NCM3722</strain>
    <growth_status>Mid-Log Phase</growth_status>
    <molecules>109600</molecules>
    <molecules_error>0</molecules_error>
    <reference>
      <reference_text>Bennett, B. D., Kimball, E. H., Gao, M., Osterhout, R., Van Dien, S. J., Rabinowitz, J. D. (2009). "Absolute metabolite concentrations and implied enzyme active site occupancy in Escherichia coli." Nat Chem Biol 5:593-599.</reference_text>
      <pubmed_id>19561621</pubmed_id>
    </reference>
    <growth_media>48 mM Na2HPO4, 22 mM KH2PO4, 10 mM NaCl, 45 mM (NH4)2SO4, supplemented with 1 mM MgSO4, 1 mg/l thiamine·HCl, 5.6 mg/l CaCl2, 8 mg/l FeCl3, 1 mg/l MnCl2·4H2O, 1.7 mg/l ZnCl2, 0.43 mg/l CuCl2·2H2O, 0.6 mg/l CoCl2·2H2O and 0.6 mg/l Na2MoO4·2H2O.  4 g/L Gluco</growth_media>
    <growth_system>Bioreactor, pH controlled, O2 and CO2 controlled, dilution rate: 0.2/h</growth_system>
    <concentration>65.7</concentration>
    <concentration_units>uM</concentration_units>
    <internal/>
    <error>0.0</error>
    <temperature>37 oC</temperature>
    <strain>BW25113</strain>
    <growth_status>Stationary Phase, glucose limited</growth_status>
    <molecules>262800</molecules>
    <molecules_error>0</molecules_error>
    <reference>
      <reference_text>Ishii, N., Nakahigashi, K., Baba, T., Robert, M., Soga, T., Kanai, A., Hirasawa, T., Naba, M., Hirai, K., Hoque, A., Ho, P. Y., Kakazu, Y., Sugawara, K., Igarashi, S., Harada, S., Masuda, T., Sugiyama, N., Togashi, T., Hasegawa, M., Takai, Y., Yugi, K., Arakawa, K., Iwata, N., Toya, Y., Nakayama, Y., Nishioka, T., Shimizu, K., Mori, H., Tomita, M. (2007). "Multiple high-throughput analyses monitor the response of E. coli to perturbations." Science 316:593-597.</reference_text>
      <pubmed_id>17379776</pubmed_id>
    </reference>
    <growth_media>Luria-Bertani (LB) media</growth_media>
    <growth_system>Shake flask</growth_system>
    <concentration>51.63</concentration>
    <concentration_units>uM</concentration_units>
    <internal>true</internal>
    <error>4.01</error>
    <temperature>37 oC</temperature>
    <strain>BL21 DE3</strain>
    <growth_status>Stationary phase cultures (overnight culture)</growth_status>
    <molecules>206533</molecules>
    <molecules_error>16027</molecules_error>
    <reference>
      <reference_text>Lin, Z., Johnson, L. C., Weissbach, H., Brot, N., Lively, M. O., Lowther, W. T. (2007). "Free methionine-(R)-sulfoxide reductase from Escherichia coli reveals a new GAF domain function." Proc Natl Acad Sci U S A 104:9597-9602.</reference_text>
      <pubmed_id>17535911</pubmed_id>
    </reference>
  </concentrations>
</compound>
