<?xml version="1.0" encoding="UTF-8"?>
<metabolite>
  <version>1.0</version>
  <creation_date>2016-09-30 22:26:51 UTC</creation_date>
  <update_date>2020-06-04 20:57:15 UTC</update_date>
  <accession>BMDB0000215</accession>
  <secondary_accessions>
    <accession>BMDB00215</accession>
  </secondary_accessions>
  <name>N-Acetyl-D-glucosamine</name>
  <description>N-Acetyl-D-glucosamine belongs to the class of chemical entities known as acylaminosugars. These are organic compounds containing a sugar linked to a chain through N-acyl group. N-Acetyl-D-glucosamine is possibly soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). N-Acetyl-D-glucosamine participates in a number of enzymatic reactions, within cattle. In particular, N-Acetyl-D-glucosamine can be biosynthesized from chitobiose; which is catalyzed by the enzyme Beta-hexosaminidase subunit alpha. In addition, N-Acetyl-D-glucosamine can be converted into N-acetyl-D-glucosamine 6-phosphate; which is mediated by the enzyme N-acetyl-D-glucosamine kinase. In cattle, N-acetyl-D-glucosamine is involved in the metabolic pathway called the amino sugar metabolism pathway.</description>
  <synonyms>
    <synonym>2-acetamido-2-Deoxyglucose</synonym>
    <synonym>N Acetyl D glucosamine</synonym>
    <synonym>2 acetamido 2 Deoxyglucose</synonym>
    <synonym>2-acetamido-2-Deoxy-D-glucose</synonym>
    <synonym>2 acetamido 2 Deoxy D glucose</synonym>
    <synonym>2-(Acetylamino)-2-deoxy-a-L-glucopyranose</synonym>
    <synonym>2-(Acetylamino)-2-deoxy-α-L-glucopyranose</synonym>
  </synonyms>
  <chemical_formula>C8H15NO6</chemical_formula>
  <average_molecular_weight>221.2078</average_molecular_weight>
  <monisotopic_moleculate_weight>221.089937217</monisotopic_moleculate_weight>
  <iupac_name>N-[(2R,3S,4S,5R,6S)-2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide</iupac_name>
  <traditional_iupac>N-[(2R,3S,4S,5R,6S)-2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide</traditional_iupac>
  <cas_registry_number/>
  <smiles>[H]OC([H])([H])[C@]1([H])O[C@@]([H])(O[H])[C@@]([H])(N([H])C(=O)C([H])([H])[H])[C@]([H])(O[H])[C@@]1([H])O[H]</smiles>
  <inchi>InChI=1S/C8H15NO6/c1-3(11)9-5-7(13)6(12)4(2-10)15-8(5)14/h4-8,10,12-14H,2H2,1H3,(H,9,11)/t4-,5-,6-,7-,8+/m0/s1</inchi>
  <inchikey>OVRNDRQMDRJTHS-DMHSOCPYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as acylaminosugars. These are organic compounds containing a sugar linked to a chain through N-acyl group.</description>
    <kingdom>Organic compounds</kingdom>
    <super_class>Organic oxygen compounds</super_class>
    <class>Organooxygen compounds</class>
    <sub_class>Carbohydrates and carbohydrate conjugates</sub_class>
    <direct_parent>Acylaminosugars</direct_parent>
    <alternative_parents>
      <alternative_parent>Acetamides</alternative_parent>
      <alternative_parent>Carbonyl compounds</alternative_parent>
      <alternative_parent>Hemiacetals</alternative_parent>
      <alternative_parent>Hexoses</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>N-acyl-alpha-hexosamines</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Organonitrogen compounds</alternative_parent>
      <alternative_parent>Organopnictogen compounds</alternative_parent>
      <alternative_parent>Oxacyclic compounds</alternative_parent>
      <alternative_parent>Oxanes</alternative_parent>
      <alternative_parent>Polyols</alternative_parent>
      <alternative_parent>Primary alcohols</alternative_parent>
      <alternative_parent>Secondary alcohols</alternative_parent>
      <alternative_parent>Secondary carboxylic acid amides</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Acetamide</substituent>
      <substituent>Acylaminosugar</substituent>
      <substituent>Alcohol</substituent>
      <substituent>Aliphatic heteromonocyclic compound</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Carboxamide group</substituent>
      <substituent>Carboxylic acid derivative</substituent>
      <substituent>Hemiacetal</substituent>
      <substituent>Hexose monosaccharide</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Monosaccharide</substituent>
      <substituent>N-acyl-alpha-hexosamine</substituent>
      <substituent>Organic nitrogen compound</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organoheterocyclic compound</substituent>
      <substituent>Organonitrogen compound</substituent>
      <substituent>Organopnictogen compound</substituent>
      <substituent>Oxacycle</substituent>
      <substituent>Oxane</substituent>
      <substituent>Polyol</substituent>
      <substituent>Primary alcohol</substituent>
      <substituent>Secondary alcohol</substituent>
      <substituent>Secondary carboxylic acid amide</substituent>
    </substituents>
    <molecular_framework>Aliphatic heteromonocyclic compounds</molecular_framework>
    <external_descriptors>
    </external_descriptors>
  </taxonomy>
  <experimental_properties>
    <state>Solid</state>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>-2.60</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>0.06</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>-3.2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_acidic</kind>
      <value>11.6</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>-0.78</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>N-[(2R,3S,4S,5R,6S)-2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>221.2078</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>221.089937217</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>[H]OC([H])([H])[C@]1([H])O[C@@]([H])(O[H])[C@@]([H])(N([H])C(=O)C([H])([H])[H])[C@]([H])(O[H])[C@@]1([H])O[H]</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C8H15NO6</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C8H15NO6/c1-3(11)9-5-7(13)6(12)4(2-10)15-8(5)14/h4-8,10,12-14H,2H2,1H3,(H,9,11)/t4-,5-,6-,7-,8+/m0/s1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>OVRNDRQMDRJTHS-DMHSOCPYSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>119.25</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>47.02</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>20.6</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>6</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>donor_count</kind>
      <value>5</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>
    <property>
      <kind>number_of_rings</kind>
      <value>1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>bioavailability</kind>
      <value>1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rule_of_five</kind>
      <value>Yes</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>ghose_filter</kind>
      <value>Yes</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>veber_rule</kind>
      <value>Yes</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mddr_like_rule</kind>
      <value>Yes</value>
      <source>ChemAxon</source>
    </property>
  </predicted_properties>
  <pathways>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::NmrTwoD</type>
      <spectrum_id>997</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrTwoD</type>
      <spectrum_id>1213</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>1209</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>352</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>353</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>354</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1255024</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1255025</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1255026</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1370227</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1370228</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1370229</spectrum_id>
    </spectrum>
  </spectra>
  <normal_concentrations>
    <concentration>
      <biospecimen>Intestine</biospecimen>
      <concentration_value/>
      <concentration_units/>
      <references>
        <reference>
          <reference_text>Wishart DS, Feunang YD, Marcu A, Guo AC, Liang K, Vazquez-Fresno R, Sajed T, Johnson D, Li C, Karu N, Sayeeda Z, Lo E, Assempour N, Berjanskii M, Singhal S, Arndt D, Liang Y, Badran H, Grant J, Serra-Cayuela A, Liu Y, Mandal R, Neveu V, Pon A, Knox C, Wilson M, Manach C, Scalbert A: HMDB 4.0: the human metabolome database for 2018. Nucleic Acids Res. 2018 Jan 4;46(D1):D608-D617. doi: 10.1093/nar/gkx1089.</reference_text>
          <pubmed_id>29140435</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Liver</biospecimen>
      <concentration_value/>
      <concentration_units/>
      <comment>Metabolomics analysis was performed using GC-MS/LC-MS in multiparous Holstein dairy cows</comment>
      <references>
        <reference>
          <reference_text>Shahzad K, Lopreiato V, Liang Y, Trevisi E, Osorio JS, Xu C, Loor JJ: Hepatic metabolomics and transcriptomics to study susceptibility to ketosis in response to prepartal nutritional management. J Anim Sci Biotechnol. 2019 Dec 18;10:96. doi: 10.1186/s40104-019-0404-z. eCollection 2019.</reference_text>
          <pubmed_id>31867104</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value/>
      <concentration_units/>
      <comment>Milk from Friesuan Holstein cows (n=1035)</comment>
      <references>
        <reference>
          <reference_text>Melzer N, Wittenburg D, Hartwig S, Jakubowski S, Kesting U, Willmitzer L, Lisec J, Reinsch N, Repsilber D: Investigating associations between milk metabolite profiles and milk traits of Holstein cows. J Dairy Sci. 2013 Mar;96(3):1521-34. doi: 10.3168/jds.2012-5743.</reference_text>
          <pubmed_id>23438684</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value/>
      <concentration_units/>
      <comment>Commercial, conventional whole milk</comment>
      <references>
        <reference>
          <reference_text>Kurt J. Boudonck, Matthew W. Mitchell, Jacob Wulff, John A. Ryals. Characterization of the biochemical variability of bovine milk using metabolomics. Metabolomics (2009) 5:375-386   doi: 10.1007/s11306-009-0160-8</reference_text>
          <pubmed_id/>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value/>
      <concentration_units/>
      <comment>Detected but not quantified in conventional whole milk</comment>
      <references>
        <reference>
          <reference_text>Kurt J. Boudonck, Matthew W. Mitchell, Jacob Wulff and John A. Ryals. Characterization of the biochemical variability of bovine milk using metabolomics. Metabolomics (2009) 5:375?386</reference_text>
          <pubmed_id/>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value>198.908 (126.578-370.692)</concentration_value>
      <concentration_units>uM</concentration_units>
      <comment>Pasteurized whole milk</comment>
      <references>
        <reference>
          <reference_text>Esperanza Troyano, Mar Villamiel, Agustin Olano, Jesus Sanz, and Isabel Martinez-Castro. Monosaccharides and myo-Inositol in Commercial Milks. J. Agric. Food Chem., 1996, 44 (3), pp 815–817</reference_text>
          <pubmed_id/>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value>506.311</concentration_value>
      <concentration_units>uM</concentration_units>
      <comment>Raw milk</comment>
      <references>
        <reference>
          <reference_text>Johan E. Hoff. Determination of N-Acetylglucosamine-1-Phosphate and N-Acetylglucosamine in Milk. June 1963, Volume 46, Issue 6, Pages 573–574</reference_text>
          <pubmed_id/>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value>230.10 +/- 2.26</concentration_value>
      <concentration_units>uM</concentration_units>
      <comment>Whole milk</comment>
      <references>
        <reference>
          <reference_text>Tommaso R.I. Cataldi, Massimiliano Angelotti, Giuliana Bianco. Determination of mono- and disaccharides in milk and milk products by high-performance anion-exchange chromatography with pulsed amperometric detection. Analytica Chimica Acta 485 (2003) 43–49</reference_text>
          <pubmed_id/>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value>238 +/- 90</concentration_value>
      <concentration_units>uM</concentration_units>
      <comment>1% milk by NMR</comment>
      <references>
        <reference>
          <reference_text>Foroutan A, Guo AC, Vazquez-Fresno R, Lipfert M, Zhang L, Zheng J, Badran H, Budinski Z, Mandal R, Ametaj BN, Wishart DS: Chemical Composition of Commercial Cow's Milk. J Agric Food Chem. 2019 Apr 17. doi: 10.1021/acs.jafc.9b00204.</reference_text>
          <pubmed_id>30994344</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value>302 +/- 76</concentration_value>
      <concentration_units>uM</concentration_units>
      <comment>2% milk by NMR</comment>
      <references>
        <reference>
          <reference_text>Foroutan A, Guo AC, Vazquez-Fresno R, Lipfert M, Zhang L, Zheng J, Badran H, Budinski Z, Mandal R, Ametaj BN, Wishart DS: Chemical Composition of Commercial Cow's Milk. J Agric Food Chem. 2019 Apr 17. doi: 10.1021/acs.jafc.9b00204.</reference_text>
          <pubmed_id>30994344</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value>278 +/- 94</concentration_value>
      <concentration_units>uM</concentration_units>
      <comment>3.25% milk by NMR</comment>
      <references>
        <reference>
          <reference_text>Foroutan A, Guo AC, Vazquez-Fresno R, Lipfert M, Zhang L, Zheng J, Badran H, Budinski Z, Mandal R, Ametaj BN, Wishart DS: Chemical Composition of Commercial Cow's Milk. J Agric Food Chem. 2019 Apr 17. doi: 10.1021/acs.jafc.9b00204.</reference_text>
          <pubmed_id>30994344</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Milk</biospecimen>
      <concentration_value>351 +/- 34</concentration_value>
      <concentration_units>uM</concentration_units>
      <comment>Skim milk by NMR</comment>
      <references>
        <reference>
          <reference_text>Foroutan A, Guo AC, Vazquez-Fresno R, Lipfert M, Zhang L, Zheng J, Badran H, Budinski Z, Mandal R, Ametaj BN, Wishart DS: Chemical Composition of Commercial Cow's Milk. J Agric Food Chem. 2019 Apr 17. doi: 10.1021/acs.jafc.9b00204.</reference_text>
          <pubmed_id>30994344</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Neuron</biospecimen>
      <concentration_value/>
      <concentration_units/>
      <references>
        <reference>
          <reference_text>Wishart DS, Feunang YD, Marcu A, Guo AC, Liang K, Vazquez-Fresno R, Sajed T, Johnson D, Li C, Karu N, Sayeeda Z, Lo E, Assempour N, Berjanskii M, Singhal S, Arndt D, Liang Y, Badran H, Grant J, Serra-Cayuela A, Liu Y, Mandal R, Neveu V, Pon A, Knox C, Wilson M, Manach C, Scalbert A: HMDB 4.0: the human metabolome database for 2018. Nucleic Acids Res. 2018 Jan 4;46(D1):D608-D617. doi: 10.1093/nar/gkx1089.</reference_text>
          <pubmed_id>29140435</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Placenta</biospecimen>
      <concentration_value/>
      <concentration_units/>
      <references>
        <reference>
          <reference_text>Wishart DS, Feunang YD, Marcu A, Guo AC, Liang K, Vazquez-Fresno R, Sajed T, Johnson D, Li C, Karu N, Sayeeda Z, Lo E, Assempour N, Berjanskii M, Singhal S, Arndt D, Liang Y, Badran H, Grant J, Serra-Cayuela A, Liu Y, Mandal R, Neveu V, Pon A, Knox C, Wilson M, Manach C, Scalbert A: HMDB 4.0: the human metabolome database for 2018. Nucleic Acids Res. 2018 Jan 4;46(D1):D608-D617. doi: 10.1093/nar/gkx1089.</reference_text>
          <pubmed_id>29140435</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Platelet</biospecimen>
      <concentration_value/>
      <concentration_units/>
      <references>
        <reference>
          <reference_text>Wishart DS, Feunang YD, Marcu A, Guo AC, Liang K, Vazquez-Fresno R, Sajed T, Johnson D, Li C, Karu N, Sayeeda Z, Lo E, Assempour N, Berjanskii M, Singhal S, Arndt D, Liang Y, Badran H, Grant J, Serra-Cayuela A, Liu Y, Mandal R, Neveu V, Pon A, Knox C, Wilson M, Manach C, Scalbert A: HMDB 4.0: the human metabolome database for 2018. Nucleic Acids Res. 2018 Jan 4;46(D1):D608-D617. doi: 10.1093/nar/gkx1089.</reference_text>
          <pubmed_id>29140435</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Prostate Tissue</biospecimen>
      <concentration_value/>
      <concentration_units/>
      <references>
        <reference>
          <reference_text>Wishart DS, Feunang YD, Marcu A, Guo AC, Liang K, Vazquez-Fresno R, Sajed T, Johnson D, Li C, Karu N, Sayeeda Z, Lo E, Assempour N, Berjanskii M, Singhal S, Arndt D, Liang Y, Badran H, Grant J, Serra-Cayuela A, Liu Y, Mandal R, Neveu V, Pon A, Knox C, Wilson M, Manach C, Scalbert A: HMDB 4.0: the human metabolome database for 2018. Nucleic Acids Res. 2018 Jan 4;46(D1):D608-D617. doi: 10.1093/nar/gkx1089.</reference_text>
          <pubmed_id>29140435</pubmed_id>
        </reference>
      </references>
    </concentration>
    <concentration>
      <biospecimen>Ruminal Fluid</biospecimen>
      <concentration_value>16</concentration_value>
      <concentration_units>uM</concentration_units>
      <comment>N-acetyl-D-Glucosamine act as growth factor  in rumen of cows for methogenic bacteria</comment>
      <references>
        <reference>
          <reference_text>Prins RA: Presence of growth factors for Methanobacterium ruminantium in both gram-positive and gram-negative bacteria. Antonie Van Leeuwenhoek. 1974;40(4):585-9.</reference_text>
          <pubmed_id>4219266</pubmed_id>
        </reference>
      </references>
    </concentration>
  </normal_concentrations>
  <kegg_id/>
  <chemspider_id/>
  <foodb_id/>
  <pubchem_compound_id>11861101</pubchem_compound_id>
  <drugbank_id/>
  <pdbe_id>NGZ</pdbe_id>
  <chebi_id/>
  <phenol_explorer_compound_id/>
  <knapsack_id/>
  <meta_cyc_id/>
  <wikipedia_id/>
  <bigg_id/>
  <metlin_id/>
  <synthesis_reference>Zhang, He; Qi, Shanlong; Yang, Shenggui.  Production of N-acetyl-D-glucosamine from chitin.    Faming Zhuanli Shenqing Gongkai Shuomingshu  (2006),     6pp. </synthesis_reference>
  <general_references>
    <reference>
      <reference_text>Melzer N, Wittenburg D, Hartwig S, Jakubowski S, Kesting U, Willmitzer L, Lisec J, Reinsch N, Repsilber D: Investigating associations between milk metabolite profiles and milk traits of Holstein cows. J Dairy Sci. 2013 Mar;96(3):1521-34. doi: 10.3168/jds.2012-5743.</reference_text>
      <pubmed_id>23438684</pubmed_id>
    </reference>
    <reference>
      <reference_text>Qian L, Zhao A, Zhang Y, Chen T, Zeisel SH, Jia W, Cai W: Metabolomic Approaches to Explore Chemical Diversity of Human Breast-Milk, Formula Milk and Bovine Milk. Int J Mol Sci. 2016 Dec 17;17(12). pii: ijms17122128. doi: 10.3390/ijms17122128.</reference_text>
      <pubmed_id>27999311</pubmed_id>
    </reference>
    <reference>
      <reference_text>Kurt J. Boudonck, Matthew W. Mitchell, Jacob Wulff and John A. Ryals. Characterization of the biochemical variability of bovine milk using metabolomics. Metabolomics (2009) 5:375?386</reference_text>
    </reference>
    <reference>
      <reference_text>A. Foroutan et al. The Chemical Composition of Commercial Cow's Milk (in preparation)</reference_text>
    </reference>
  </general_references>
  <protein_associations>
    <protein>
      <protein_accession>BMDBP00604</protein_accession>
      <name>Beta-1,4-galactosyltransferase 1</name>
      <uniprot_id>P08037</uniprot_id>
      <gene_name>B4GALT1</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00640</protein_accession>
      <name>Beta-1,4-galactosyltransferase 3</name>
      <uniprot_id>Q5EA87</uniprot_id>
      <gene_name>B4GALT3</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00651</protein_accession>
      <name>Protein O-linked-mannose beta-1,2-N-acetylglucosaminyltransferase 1</name>
      <uniprot_id>Q5EAB6</uniprot_id>
      <gene_name>POMGNT1</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00699</protein_accession>
      <name>Lysozyme C, milk isozyme</name>
      <uniprot_id>Q6B411</uniprot_id>
      <gene_name/>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00700</protein_accession>
      <name>Lysozyme C-3</name>
      <uniprot_id>Q06284</uniprot_id>
      <gene_name>LYZ3</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00701</protein_accession>
      <name>Lysozyme-like protein 6</name>
      <uniprot_id>Q29RT1</uniprot_id>
      <gene_name>LYZL6</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00703</protein_accession>
      <name>N-acetyl-D-glucosamine kinase</name>
      <uniprot_id>Q3SZM9</uniprot_id>
      <gene_name>NAGK</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00704</protein_accession>
      <name>Lysozyme C, non-stomach isozyme</name>
      <uniprot_id>P80189</uniprot_id>
      <gene_name>LYS</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00705</protein_accession>
      <name>Lysozyme C, intestinal isozyme</name>
      <uniprot_id>Q6B410</uniprot_id>
      <gene_name/>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00706</protein_accession>
      <name>N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase</name>
      <uniprot_id>P68827</uniprot_id>
      <gene_name>NAGPA</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00707</protein_accession>
      <name>Lysozyme C-1</name>
      <uniprot_id>Q06285</uniprot_id>
      <gene_name>LYZ1</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00708</protein_accession>
      <name>Lysozyme C, tracheal isozyme</name>
      <uniprot_id>Q27996</uniprot_id>
      <gene_name/>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00709</protein_accession>
      <name>Lysozyme C</name>
      <uniprot_id>P04421</uniprot_id>
      <gene_name>LYZ1</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00710</protein_accession>
      <name>Lysozyme-like protein 1</name>
      <uniprot_id>A0JNM6</uniprot_id>
      <gene_name>LYZL1</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00711</protein_accession>
      <name>Sperm acrosome-associated protein 5</name>
      <uniprot_id>Q32PD6</uniprot_id>
      <gene_name>SPACA5</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00712</protein_accession>
      <name>Lysozyme C-2</name>
      <uniprot_id>Q06283</uniprot_id>
      <gene_name>LYZ2</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP01617</protein_accession>
      <name>Collectin-43</name>
      <uniprot_id>P42916</uniprot_id>
      <gene_name>CL43</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP01908</protein_accession>
      <name>Conglutinin</name>
      <uniprot_id>P23805</uniprot_id>
      <gene_name>CGN1</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP01910</protein_accession>
      <name>Mannose-binding protein C</name>
      <uniprot_id>O02659</uniprot_id>
      <gene_name>MBL</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP02058</protein_accession>
      <name>Ficolin-2</name>
      <uniprot_id>Q5I2E5</uniprot_id>
      <gene_name>FCN2</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP02541</protein_accession>
      <name>Sperm acrosome membrane-associated protein 3</name>
      <uniprot_id>A6QQ77</uniprot_id>
      <gene_name>SPACA3</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
  </protein_associations>
</metabolite>
