2.0 2012-05-31 13:46:33 -0600 2015-06-03 15:53:47 -0600 ECMDB01162 M2MDB000278 Heme O HemeOo is a member of the chemical class known as Metalloporphyrins. These are polycyclic compounds containing a porphyrin moiety and a metal atom. Heme O (or haem O) differs from the closely related heme A by having a methyl group at ring position 8 instead of the formyl group. The isoprenoid chain at position 2 is the same. Heme O, found in the bacterium Escherichia coli, functions in a similar manner to heme A in mammalian oxygen reduction. (WikiPedia) Heme O C49H58FeN4O5 838.854 838.375663119 3-[(11Z,16Z)-20-(2-carboxyethyl)-15-ethenyl-10-[(4E,8E)-1-hydroxy-5,9,13-trimethyltetradeca-4,8,12-trien-1-yl]-5,9,14,19-tetramethyl-21,23,24,25-tetraaza-22-ferrahexacyclo[9.9.3.1³,⁶.1¹³,¹⁶.0⁸,²³.0¹⁸,²¹]pentacosa-1(20),2,4,6(25),7,9,11,13(24),14,16,18-undecaen-4-yl]propanoic acid 3-[(11Z,16Z)-20-(2-carboxyethyl)-15-ethenyl-10-[(4E,8E)-1-hydroxy-5,9,13-trimethyltetradeca-4,8,12-trien-1-yl]-5,9,14,19-tetramethyl-21,23,24,25-tetraaza-22-ferrahexacyclo[9.9.3.1³,⁶.1¹³,¹⁶.0⁸,²³.0¹⁸,²¹]pentacosa-1(20),2,4,6(25),7,9,11,13(24),14,16,18-undecaen-4-yl]propanoic acid 137397-56-9 CC(C)=CCC\C(C)=C\CC\C(C)=C\CCC(O)C1=C(C)/C2=C/C3=N/C(=C\C4=C(CCC(O)=O)C(C)=C5/C=C6\N=C(\C=C\1/N\2[Fe]N45)C(C)=C6C=C)/C(CCC(O)=O)=C3C InChI=1S/C49H60N4O5.Fe/c1-10-35-31(6)40-26-45-49(46(54)19-13-18-30(5)17-12-16-29(4)15-11-14-28(2)3)34(9)41(53-45)24-38-32(7)36(20-22-47(55)56)43(51-38)27-44-37(21-23-48(57)58)33(8)39(52-44)25-42(35)50-40;/h10,14,16,18,24-27,46,54H,1,11-13,15,17,19-23H2,2-9H3,(H4,50,51,52,53,55,56,57,58);/q;+2/p-2/b29-16+,30-18+,38-24-,39-25-,40-26-,41-24-,42-25-,43-27-,44-27-,45-26-; FISPASSVCDRERW-KVGORYHISA-L Cytosol Membrane logp 6.21 ALOGPS logs -5.17 ALOGPS solubility 5.68e-03 g/l ALOGPS logp 11.26 ChemAxon pka_strongest_acidic 3.65 ChemAxon pka_strongest_basic 2.84 ChemAxon iupac 3-[(11Z,16Z)-20-(2-carboxyethyl)-15-ethenyl-10-[(4E,8E)-1-hydroxy-5,9,13-trimethyltetradeca-4,8,12-trien-1-yl]-5,9,14,19-tetramethyl-21,23,24,25-tetraaza-22-ferrahexacyclo[9.9.3.1³,⁶.1¹³,¹⁶.0⁸,²³.0¹⁸,²¹]pentacosa-1(20),2,4,6(25),7,9,11,13(24),14,16,18-undecaen-4-yl]propanoic acid ChemAxon average_mass 838.854 ChemAxon mono_mass 838.375663119 ChemAxon smiles CC(C)=CCC\C(C)=C\CC\C(C)=C\CCC(O)C1=C(C)/C2=C/C3=N/C(=C\C4=C(CCC(O)=O)C(C)=C5/C=C6\N=C(\C=C\1/N\2[Fe]N45)C(C)=C6C=C)/C(CCC(O)=O)=C3C ChemAxon formula C49H58FeN4O5 ChemAxon inchi InChI=1S/C49H60N4O5.Fe/c1-10-35-31(6)40-26-45-49(46(54)19-13-18-30(5)17-12-16-29(4)15-11-14-28(2)3)34(9)41(53-45)24-38-32(7)36(20-22-47(55)56)43(51-38)27-44-37(21-23-48(57)58)33(8)39(52-44)25-42(35)50-40;/h10,14,16,18,24-27,46,54H,1,11-13,15,17,19-23H2,2-9H3,(H4,50,51,52,53,55,56,57,58);/q;+2/p-2/b29-16+,30-18+,38-24-,39-25-,40-26-,41-24-,42-25-,43-27-,44-27-,45-26-; ChemAxon inchikey FISPASSVCDRERW-KVGORYHISA-L ChemAxon polar_surface_area 130.47 ChemAxon refractivity 237.91 ChemAxon polarizability 96.53 ChemAxon rotatable_bond_count 17 ChemAxon acceptor_count 7 ChemAxon donor_count 3 ChemAxon physiological_charge -2 ChemAxon formal_charge 0 ChemAxon Oxidative phosphorylation The process of oxidative phosphorylation involves multiple interactions of ubiquinone with succinic acid, resulting in a fumaric acid and ubiquinol. Ubiquinone interacts with succinic acid through a succinate:quinone oxidoreductase resulting in a fumaric acid an ubiquinol. This enzyme has various cofactors, ferroheme b, 2FE-2S, FAD, and 3Fe-4S iron-sulfur cluster. Then 2 ubiquinol interact with oxygen and 4 hydrogen ion through a cytochrome bd-I terminal oxidase resulting in a 4 hydrogen ion transferred into the periplasmic space, 2 water returned into the cytoplasm and 2 ubiquinone, which stay in the inner membrane. The ubiquinone interacts with succinic acid through a succinate:quinone oxidoreductase resulting in a fumaric acid an ubiquinol. Then 2 ubiquinol interacts with oxygen and 4 hydrogen ion through a cytochrome bd-II terminal oxidase resulting in a 4 hydrogen ion transferred into the periplasmic space, 2 water returned into the cytoplasm and 2 ubiquinone, which stay in the inner membrane. The ubiquinone interacts with succinic acid through a succinate:quinone oxidoreductase resulting in a fumaric acid an ubiquinol. The 2 ubiquinol interact with oxygen and 8 hydrogen ion through a cytochrome bo terminal oxidase resulting in a 8 hydrogen ion transferred into the periplasmic space, 2 water returned into the cytoplasm and 2 ubiquinone, which stays in the inner membrane. The ubiquinone then interacts with 5 hydrogen ion through a NADH dependent ubiquinone oxidoreductase I resulting in NAD, hydrogen ion released into the periplasmic space and an ubiquinol. The ubiquinol is then processed reacting with oxygen, and 4 hydrogen through a ion cytochrome bd-I terminal oxidase resulting in 4 hydrogen ions released into the periplasmic space, 2 water molecules into the cytoplasm and 2 ubiquinones. The ubiquinone then interacts with 5 hydrogen ion through a NADH dependent ubiquinone oxidoreductase I resulting in NAD, hydrogen ion released into the periplasmic space and an ubiquinol. The 2 ubiquinol interact with oxygen and 8 hydrogen ion through a cytochrome bo terminal oxidase resulting in a 8 hydrogen ion transferred into the periplasmic space, 2 water returned into the cytoplasm and 2 ubiquinone, which stays in the inner membrane. PW000919 ec00190 Metabolic Porphyrin and chlorophyll metabolism ec00860 Porphyrin metabolism 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. PW000936 Metabolic Specdb::NmrOneD 249988 Specdb::NmrOneD 249989 Specdb::NmrOneD 249990 Specdb::NmrOneD 249991 Specdb::NmrOneD 249992 Specdb::NmrOneD 249993 Specdb::NmrOneD 249994 Specdb::NmrOneD 249995 Specdb::NmrOneD 249996 Specdb::NmrOneD 249997 Specdb::NmrOneD 249998 Specdb::NmrOneD 249999 Specdb::NmrOneD 250000 Specdb::NmrOneD 250001 Specdb::NmrOneD 250002 Specdb::NmrOneD 250003 Specdb::NmrOneD 250004 Specdb::NmrOneD 250005 Specdb::NmrOneD 250006 Specdb::NmrOneD 250007 Specdb::MsMs 23618 Specdb::MsMs 23619 Specdb::MsMs 23620 Specdb::MsMs 30416 Specdb::MsMs 30417 Specdb::MsMs 30418 Specdb::MsMs 2263675 Specdb::MsMs 2263676 Specdb::MsMs 2263677 Specdb::MsMs 3074586 Specdb::MsMs 3074587 Specdb::MsMs 3074588 HMDB01162 23724534 C15672 24480 HEME_O Heme O 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. 21097882 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. 22080510 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. 17765195 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. 18331064 Protoheme IX farnesyltransferase P0AEA5 CYOE_ECOLI cyoE http://ecmdb.ca/proteins/P0AEA5.xml Farnesyl pyrophosphate + Water + Heme > Heme O + Pyrophosphate R07411 HEMEOSYN-RXN Heme + Water + Farnesyl pyrophosphate <> Heme O + Pyrophosphate R07411 HEMEOSYN-RXN ferroheme b + Water + Farnesyl pyrophosphate + Farnesyl pyrophosphate > Heme O + Pyrophosphate PW_R003487 Farnesyl pyrophosphate + Water + Heme > Heme O + Pyrophosphate Farnesyl pyrophosphate + Water + Heme > Heme O + Pyrophosphate