1.0 2016-09-30 22:20:17 UTC 2020-06-04 20:52:01 UTC BMDB0000157 BMDB00157 Hypoxanthine Hypoxanthine, also known as purine-6-ol or Hyp, belongs to the class of organic compounds known as hypoxanthines. Hypoxanthines are compounds containing the purine derivative 1H-purin-6(9H)-one. Purine is a bicyclic aromatic compound made up of a pyrimidine ring fused to an imidazole ring. Hypoxanthine exists as a solid, possibly soluble (in water), and a moderately basic compound (based on its pKa) molecule. Hypoxanthine exists in all living species, ranging from bacteria to humans. Hypoxanthine is a potentially toxic compound. 6(1H)-Purinone 6-Oxopurine 9H-Purin-6(1H)-one Hyp Purin-6(1H)-one Purine-6-ol 1,7-Dihydro-6H-purin-6-one 1,7-Dihydro-6H-purine-6-one 1H,7H-Hypoxanthine 3H-Purin-6-ol 4-Hydroxy-1H-purine 6-Hydroxy-1H-purine 6-Hydroxypurine 7H-Purin-6-ol 9H-Purin-6-ol Hypoxanthine enol Purin-6(3H)-one Purin-6-ol Sarcine Sarkin Sarkine C5H4N4O 136.1115 136.03851077 7H-purin-6-ol 6-hydroxypurine 68-94-0 OC1=NC=NC2=C1NC=N2 InChI=1S/C5H4N4O/c10-5-3-4(7-1-6-3)8-2-9-5/h1-2H,(H2,6,7,8,9,10) FDGQSTZJBFJUBT-UHFFFAOYSA-N belongs to the class of organic compounds known as hypoxanthines. Hypoxanthines are compounds containing the purine derivative 1H-purin-6(9H)-one. Purine is a bicyclic aromatic compound made up of a pyrimidine ring fused to an imidazole ring. Organic compounds Organoheterocyclic compounds Imidazopyrimidines Purines and purine derivatives Hypoxanthines 6-oxopurines Azacyclic compounds Heteroaromatic compounds Hydrocarbon derivatives Imidazoles Organic oxides Organonitrogen compounds Organooxygen compounds Organopnictogen compounds Pyrimidones Vinylogous amides 6-oxopurine Aromatic heteropolycyclic compound Azacycle Azole Heteroaromatic compound Hydrocarbon derivative Hypoxanthine Imidazole Organic nitrogen compound Organic oxide Organic oxygen compound Organonitrogen compound Organooxygen compound Organopnictogen compound Pyrimidine Pyrimidone Vinylogous amide Aromatic heteropolycyclic compounds Purine alkaloids a purine base a purine-related compound nucleobase analogue oxopurine purine nucleobase Solid melting_point 150 °C water_solubility 0.7 mg/mL YALKOWSKY,SH & DANNENFELSER,RM (1992) logp -1.11 HANSCH,C ET AL. (1995) logp -0.55 ALOGPS logs -1.02 ALOGPS logp -0.048 ChemAxon pka_strongest_acidic 8.72 ChemAxon pka_strongest_basic 1.73 ChemAxon iupac 7H-purin-6-ol ChemAxon average_mass 136.1115 ChemAxon mono_mass 136.03851077 ChemAxon smiles OC1=NC=NC2=C1NC=N2 ChemAxon formula C5H4N4O ChemAxon inchi InChI=1S/C5H4N4O/c10-5-3-4(7-1-6-3)8-2-9-5/h1-2H,(H2,6,7,8,9,10) ChemAxon inchikey FDGQSTZJBFJUBT-UHFFFAOYSA-N ChemAxon polar_surface_area 74.69 ChemAxon refractivity 35.5 ChemAxon polarizability 11.82 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 4 ChemAxon donor_count 2 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon number_of_rings 2 ChemAxon bioavailability 1 ChemAxon rule_of_five Yes ChemAxon ghose_filter Yes ChemAxon veber_rule Yes ChemAxon mddr_like_rule Yes ChemAxon Purine Metabolism SMP0087239 Specdb::EiMs 325 Specdb::MsIr 237 Specdb::MsIr 238 Specdb::MsIr 239 Specdb::CMs 380 Specdb::CMs 381 Specdb::CMs 382 Specdb::CMs 1487 Specdb::CMs 2948 Specdb::CMs 29560 Specdb::CMs 30193 Specdb::CMs 30574 Specdb::CMs 30876 Specdb::CMs 31029 Specdb::CMs 31967 Specdb::CMs 31968 Specdb::CMs 37327 Specdb::CMs 169563 Specdb::CMs 1051726 Specdb::CMs 1051727 Specdb::CMs 1051729 Specdb::NmrTwoD 973 Specdb::NmrTwoD 1175 Specdb::NmrOneD 1116 Specdb::NmrOneD 2582 Specdb::NmrOneD 3276 Specdb::NmrOneD 4910 Specdb::NmrOneD 4911 Specdb::NmrOneD 5892 Specdb::NmrOneD 5893 Specdb::NmrOneD 5894 Specdb::NmrOneD 5895 Specdb::NmrOneD 5896 Specdb::NmrOneD 5897 Specdb::NmrOneD 5898 Specdb::NmrOneD 5899 Specdb::NmrOneD 5900 Specdb::NmrOneD 5901 Specdb::NmrOneD 5902 Specdb::NmrOneD 5903 Specdb::NmrOneD 5904 Specdb::NmrOneD 5905 Specdb::NmrOneD 5906 Specdb::NmrOneD 5907 Specdb::NmrOneD 5908 Specdb::NmrOneD 5909 Specdb::NmrOneD 5910 Specdb::NmrOneD 5911 Specdb::MsMs 242 Specdb::MsMs 243 Specdb::MsMs 244 Specdb::MsMs 3130 Specdb::MsMs 3131 Specdb::MsMs 3132 Specdb::MsMs 3133 Specdb::MsMs 3134 Specdb::MsMs 3135 Specdb::MsMs 3136 Specdb::MsMs 3137 Specdb::MsMs 3138 Specdb::MsMs 3139 Specdb::MsMs 3140 Specdb::MsMs 3141 Specdb::MsMs 3142 Specdb::MsMs 3143 Specdb::MsMs 3144 Specdb::MsMs 3145 Specdb::MsMs 3146 Specdb::MsMs 3147 Specdb::MsMs 3148 Specdb::MsMs 3149 Specdb::MsMs 3150 Specdb::MsMs 3151 Adipose Tissue 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. 29140435 Colostrum Detected by NMR Zanardi E, Caligiani A, Palla L, Mariani M, Ghidini S, Di Ciccio PA, Palla G, Ianieri A: Metabolic profiling by (1)H NMR of ground beef irradiated at different irradiation doses. Meat Sci. 2015 May;103:83-9. doi: 10.1016/j.meatsci.2015.01.005. Epub 2015 Jan 15. 25637742 Epidermis 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. 29140435 Erythrocyte 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. 29140435 Fibroblasts 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. 29140435 Intestine 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. 29140435 Kidney 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. 29140435 Liver 8 multiparous Chinese Holstein dairy cows fed in the Hangzhou Hangjiang Dairy Farm based on the milk production under corn stover based diets. Detection used gas chromatography time-of-flight/mass spectrometry (GC-TOF/MS) platform. Sun HZ, Zhou M, Wang O, Chen Y, Liu JX, Guan LL: Multi-omics reveals functional genomic and metabolic mechanisms of milk production and quality in dairy cows. Bioinformatics. 2020 Apr 15;36(8):2530-2537. doi: 10.1093/bioinformatics/btz951. 31873721 Liver 8 multiparous Chinese Holstein dairy cows fed in the Hangzhou Hangjiang Dairy Farm based on the milk production under alfalfa hay based diets. Detection used gas chromatography time-of-flight/mass spectrometry (GC-TOF/MS) platform. Sun HZ, Zhou M, Wang O, Chen Y, Liu JX, Guan LL: Multi-omics reveals functional genomic and metabolic mechanisms of milk production and quality in dairy cows. Bioinformatics. 2020 Apr 15;36(8):2530-2537. doi: 10.1093/bioinformatics/btz951. 31873721 Liver 1227 +/- 156 nmol/g of tissue By NMR Aidin Foroutan, Carolyn Fitzsimmons, Rupasri Mandal, Hamed Piri‐Moghadam, Jiamin Zheng, AnChi Guo, Carin Li, Le Luo Guan and David S. Wishart. The Bovine Metabolome. Metabolites 2020, 10, 233; doi:10.3390/metabo10060233 Liver Metabolomics analysis was performed using GC-MS/LC-MS in multiparous Holstein dairy cows 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. 31867104 Mammary Gland 8 multiparous Chinese Holstein dairy cows fed in the Hangzhou Hangjiang Dairy Farm based on the milk production under corn stover based diets. Detection used gas chromatography time-of-flight/mass spectrometry (GC-TOF/MS) platform. Sun HZ, Zhou M, Wang O, Chen Y, Liu JX, Guan LL: Multi-omics reveals functional genomic and metabolic mechanisms of milk production and quality in dairy cows. Bioinformatics. 2020 Apr 15;36(8):2530-2537. doi: 10.1093/bioinformatics/btz951. 31873721 Mammary Gland 8 multiparous Chinese Holstein dairy cows fed in the Hangzhou Hangjiang Dairy Farm based on the milk production under alfalfa hay based diets. Detection used gas chromatography time-of-flight/mass spectrometry (GC-TOF/MS) platform. Sun HZ, Zhou M, Wang O, Chen Y, Liu JX, Guan LL: Multi-omics reveals functional genomic and metabolic mechanisms of milk production and quality in dairy cows. Bioinformatics. 2020 Apr 15;36(8):2530-2537. doi: 10.1093/bioinformatics/btz951. 31873721 Milk 7.1 uM Raw whole milk Tiemeyer W, Stohrer M, Giesecke D: Metabolites of nucleic acids in bovine milk. J Dairy Sci. 1984 Apr;67(4):723-8. doi: 10.3168/jds.S0022-0302(84)81361-2. 6539345 Muscle 1159.7 +/- 135.04 uM Detected by NMR in Korean commercial beef sirloin. Jung Y, Lee J, Kwon J, Lee KS, Ryu DH, Hwang GS: Discrimination of the geographical origin of beef by (1)H NMR-based metabolomics. J Agric Food Chem. 2010 Oct 13;58(19):10458-66. doi: 10.1021/jf102194t. 20831251 Muscle Detected by NMR Zanardi E, Caligiani A, Palla L, Mariani M, Ghidini S, Di Ciccio PA, Palla G, Ianieri A: Metabolic profiling by (1)H NMR of ground beef irradiated at different irradiation doses. Meat Sci. 2015 May;103:83-9. doi: 10.1016/j.meatsci.2015.01.005. Epub 2015 Jan 15. 25637742 Muscle 1254.6 +/- 88.57 uM Detected by NMR in US commercial beef sirloin Jung Y, Lee J, Kwon J, Lee KS, Ryu DH, Hwang GS: Discrimination of the geographical origin of beef by (1)H NMR-based metabolomics. J Agric Food Chem. 2010 Oct 13;58(19):10458-66. doi: 10.1021/jf102194t. 20831251 Muscle 1497.99 +/- 57.51 uM Detected by NMR in New Zealand commercial beef sirloin. Jung Y, Lee J, Kwon J, Lee KS, Ryu DH, Hwang GS: Discrimination of the geographical origin of beef by (1)H NMR-based metabolomics. J Agric Food Chem. 2010 Oct 13;58(19):10458-66. doi: 10.1021/jf102194t. 20831251 Muscle Detected by NMR in beef muscle (longissimus dorsi). S. F. Graham, T. Kennedy, O. Chevallier, A. Gordon, L. Farmer, C. Elliott, B. Moss. The application of NMR to study changes in polar metabolite concentrations in beef longissimus dorsi stored for different periods post mortem. Metabolomics (2010) 6:395-404 doi: 10.1007/s11306-010-0206-y Muscle 678.18 +/- 58.48 uM Detected by NMR in Australian commercial beef sirloin. Jung Y, Lee J, Kwon J, Lee KS, Ryu DH, Hwang GS: Discrimination of the geographical origin of beef by (1)H NMR-based metabolomics. J Agric Food Chem. 2010 Oct 13;58(19):10458-66. doi: 10.1021/jf102194t. 20831251 Placenta 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. 29140435 Platelet 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. 29140435 Prostate Tissue 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. 29140435 Ruminal Fluid 80 +/- 24 uM Samples have been collected from 8 healthy primiparous Holstein cow fed barley grains (15% of diet dry matter). Fozia Saleem, Souhaila Bouatra, An Chi Guo, Nikolaos Psychogios, Rupasri Mandal, Suzanna M. Dunn, Burim N. Ametaj, David S. Wishart. The Bovine Ruminal Fluid Metabolome. Metabolomics (2013) 9:360–378. Ruminal Fluid 90 +/- 49 uM Samples have been collected from 8 healthy primiparous Holstein cow fed barley grains (30% of diet dry matter). Fozia Saleem, Souhaila Bouatra, An Chi Guo, Nikolaos Psychogios, Rupasri Mandal, Suzanna M. Dunn, Burim N. Ametaj, David S. Wishart. The Bovine Ruminal Fluid Metabolome. Metabolomics (2013) 9:360–378. Ruminal Fluid 205 +/- 61 uM Samples have been collected from 8 healthy primiparous Holstein cow fed barley grains (45% of diet dry matter). Fozia Saleem, Souhaila Bouatra, An Chi Guo, Nikolaos Psychogios, Rupasri Mandal, Suzanna M. Dunn, Burim N. Ametaj, David S. Wishart. The Bovine Ruminal Fluid Metabolome. Metabolomics (2013) 9:360–378. Ruminal Fluid 63 +/- 25 uM Samples have been collected from 8 healthy primiparous Holstein cow, no barley grains in diet. Fozia Saleem, Souhaila Bouatra, An Chi Guo, Nikolaos Psychogios, Rupasri Mandal, Suzanna M. Dunn, Burim N. Ametaj, David S. Wishart. The Bovine Ruminal Fluid Metabolome. Metabolomics (2013) 9:360–378. Ruminal Fluid 63 +/- 25 uM Samples have been collected from 8 healthy primiparous Holstein cow, no barley grains in diet. Metabolite measured by NMR and GC-MS Fozia Saleem, Souhaila Bouatra, An Chi Guo, Nikolaos Psychogios, Rupasri Mandal, Suzanna M. Dunn, Burim N. Ametaj, David S. Wishart. The Bovine Ruminal Fluid Metabolome. Metabolomics (2013) 9:360–378. Ruminal Fluid Samples collected from 16 multiparous Holstein cows Sun HZ, Wang DM, Wang B, Wang JK, Liu HY, Guan le L, Liu JX: Metabolomics of four biofluids from dairy cows: potential biomarkers for milk production and quality. J Proteome Res. 2015 Feb 6;14(2):1287-98. doi: 10.1021/pr501305g. Epub 2015 Jan 28. 25599412 Ruminal Fluid 103-150 uM By NMR O'Callaghan TF, Vazquez-Fresno R, Serra-Cayuela A, Dong E, Mandal R, Hennessy D, McAuliffe S, Dillon P, Wishart DS, Stanton C, Ross RP: Pasture Feeding Changes the Bovine Rumen and Milk Metabolome. Metabolites. 2018 Apr 6;8(2). pii: metabo8020027. doi: 10.3390/metabo8020027. 29642378 Ruminal Fluid 134 uM By NMR. Primiparous Holstein cows fed barley grains (15% of diet dry matter) Burim NA, Qendrim Z, Fozia S, Psychogios N, Michael JL, Dunn SM, Jianguo X, Wishart DS. Metabolomics reveals unhealthy alterations in rumen metabolism with increased proportion of cereal grain in the diet of dairy cows. Metabolomics. 2010;6(4):583-594 doi: 10.1007/s11306-010-0227-6 Ruminal Fluid 219 uM By NMR. Primiparous Holstein cows fed barley grains (30% of diet dry matter) Burim NA, Qendrim Z, Fozia S, Psychogios N, Michael JL, Dunn SM, Jianguo X, Wishart DS. Metabolomics reveals unhealthy alterations in rumen metabolism with increased proportion of cereal grain in the diet of dairy cows. Metabolomics. 2010;6(4):583-594 doi: 10.1007/s11306-010-0227-6 Ruminal Fluid 220 uM By NMR. Primiparous Holstein cows fed barley grains (45% of diet dry matter) Burim NA, Qendrim Z, Fozia S, Psychogios N, Michael JL, Dunn SM, Jianguo X, Wishart DS. Metabolomics reveals unhealthy alterations in rumen metabolism with increased proportion of cereal grain in the diet of dairy cows. Metabolomics. 2010;6(4):583-594 doi: 10.1007/s11306-010-0227-6 Ruminal Fluid 87.9 uM By NMR. Primiparous Holstein cows, no barley grains in diet. Burim NA, Qendrim Z, Fozia S, Psychogios N, Michael JL, Dunn SM, Jianguo X, Wishart DS. Metabolomics reveals unhealthy alterations in rumen metabolism with increased proportion of cereal grain in the diet of dairy cows. Metabolomics. 2010;6(4):583-594 doi: 10.1007/s11306-010-0227-6 Ruminal Fluid 753 +/- 191 uM By NMR Aidin Foroutan, Carolyn Fitzsimmons, Rupasri Mandal, Hamed Piri‐Moghadam, Jiamin Zheng, AnChi Guo, Carin Li, Le Luo Guan and David S. Wishart. The Bovine Metabolome. Metabolites 2020, 10, 233; doi:10.3390/metabo10060233 Ruminal Fluid 52.27 +/- 24.11 uM Fozia Saleem, Souhaila Bouatra, An Chi Guo, Nikolaos Psychogios, Rupasri Mandal, Suzanna M. Dunn, Burim N. Ametaj, David S. Wishart. The Bovine Ruminal Fluid Metabolome. Metabolomics (2013) 9:360–378. Ruminal Fluid 76.1 uM By NMR. Daily cows fed barley grains (15% of diet dry matter) (n=8) Saleem F, Ametaj BN, Bouatra S, Mandal R, Zebeli Q, Dunn SM, Wishart DS: A metabolomics approach to uncover the effects of grain diets on rumen health in dairy cows. J Dairy Sci. 2012 Nov;95(11):6606-23. doi: 10.3168/jds.2012-5403. Epub 2012 Sep 7. 22959937 Ruminal Fluid 85.1 uM By NMR. Daily cows fed barley grains (30% of diet dry matter) (n=8) Saleem F, Ametaj BN, Bouatra S, Mandal R, Zebeli Q, Dunn SM, Wishart DS: A metabolomics approach to uncover the effects of grain diets on rumen health in dairy cows. J Dairy Sci. 2012 Nov;95(11):6606-23. doi: 10.3168/jds.2012-5403. Epub 2012 Sep 7. 22959937 Ruminal Fluid 205 uM By NMR. Daily cows fed barley grains (45% of diet dry matter) (n=8) Saleem F, Ametaj BN, Bouatra S, Mandal R, Zebeli Q, Dunn SM, Wishart DS: A metabolomics approach to uncover the effects of grain diets on rumen health in dairy cows. J Dairy Sci. 2012 Nov;95(11):6606-23. doi: 10.3168/jds.2012-5403. Epub 2012 Sep 7. 22959937 Ruminal Fluid 52.3 uM By NMR. No barley grains in diet (n=8) Saleem F, Ametaj BN, Bouatra S, Mandal R, Zebeli Q, Dunn SM, Wishart DS: A metabolomics approach to uncover the effects of grain diets on rumen health in dairy cows. J Dairy Sci. 2012 Nov;95(11):6606-23. doi: 10.3168/jds.2012-5403. Epub 2012 Sep 7. 22959937 Skeletal Muscle 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. 29140435 Spleen 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. 29140435 Testis 176 +/- 66 nmol/g of tissue By NMR Aidin Foroutan, Carolyn Fitzsimmons, Rupasri Mandal, Hamed Piri‐Moghadam, Jiamin Zheng, AnChi Guo, Carin Li, Le Luo Guan and David S. Wishart. The Bovine Metabolome. Metabolites 2020, 10, 233; doi:10.3390/metabo10060233 C00262 768 DB04076 FDB003949 790 17368 HYPOXANTHINE C00001502 Hypoxanthine 34434 83 Shaw, Elliott.New synthesis of the purines adenine, hypoxanthine, xanthine, and isoguanine. Journal of Biological Chemistry (1950), 185 439-47. Tiemeyer W, Stohrer M, Giesecke D: Metabolites of nucleic acids in bovine milk. J Dairy Sci. 1984 Apr;67(4):723-8. doi: 10.3168/jds.S0022-0302(84)81361-2. 6539345 BMDBP00440 Hypoxanthine-guanine phosphoribosyltransferase Q3SZ18 HPRT1 Enzyme BMDBP00603 Xanthine dehydrogenase/oxidase P80457 XDH Enzyme BMDBP00698 Purine nucleoside phosphorylase P55859 PNP Enzyme