Record Information
Version2.0
Creation Date2012-05-31 14:32:32 -0600
Update Date2015-06-03 17:19:30 -0600
Secondary Accession Numbers
  • ECMDB20195
Identification
Name:Sirohydrochlorin
DescriptionSirohydrochlorin is a member of the chemical class known as Precorrins. These are intermediates formed by methylation at one or more of the four rings prior to the formation of the macrocyclic corrin ring. typhimurium, precorrin-2 is a precursor of both siroheme and B12. (PMID 8955319)
Structure
Thumb
Synonyms:
  • Precorrin
Chemical Formula:C42H46N4O16
Weight:Average: 862.8318
Monoisotopic: 862.290881444
InChI Key:KWIZRXMMFRBUML-AHGFGAHVSA-N
InChI:InChI=1S/C42H46N4O16/c1-41(17-39(59)60)23(5-9-35(51)52)29-14-27-21(11-37(55)56)19(3-7-33(47)48)25(43-27)13-26-20(4-8-34(49)50)22(12-38(57)58)28(44-26)15-31-42(2,18-40(61)62)24(6-10-36(53)54)30(46-31)16-32(41)45-29/h13-16,23-24,44-45H,3-12,17-18H2,1-2H3,(H,47,48)(H,49,50)(H,51,52)(H,53,54)(H,55,56)(H,57,58)(H,59,60)(H,61,62)/b25-13-,29-14-,31-15-,32-16-/t23-,24-,41+,42+/m1/s1
CAS number:65207-12-7
IUPAC Name:3-[(4S,5S,9S,10S)-9,15,19-tris(2-carboxyethyl)-5,10,14,20-tetrakis(carboxymethyl)-5,10-dimethyl-21,22,23,24-tetraazapentacyclo[16.2.1.1³,⁶.1⁸,¹¹.1¹³,¹⁶]tetracosa-1(21),2,6,8(23),11,13,15,17,19-nonaen-4-yl]propanoic acid
Traditional IUPAC Name:sirohydrochlorin
SMILES:C[C@]1(CC(O)=O)[C@H](CCC(O)=O)\C2=C\C3=N\C(=C/C4=C(CCC(O)=O)C(CC(O)=O)=C(N4)\C=C4/N=C(/C=C1\N2)[C@@H](CCC(O)=O)[C@]4(C)CC(O)=O)\C(CCC(O)=O)=C3CC(O)=O
Chemical Taxonomy
Description belongs to the class of organic compounds known as tetrapyrroles and derivatives. These are polycyclic aromatic compounds containing four pyrrole rings joined by one-carbon units linking position 2 of one pyrrole ring to position 5 of the next.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassTetrapyrroles and derivatives
Sub ClassNot Available
Direct ParentTetrapyrroles and derivatives
Alternative Parents
Substituents
  • Tetrapyrrole skeleton
  • Substituted pyrrole
  • Pyrrole
  • Heteroaromatic compound
  • Carboxylic acid derivative
  • Carboxylic acid
  • Azacycle
  • Carbonyl group
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Physical Properties
State:Not Available
Charge:-8
Melting point:Not Available
Experimental Properties:
PropertyValueSource
Predicted Properties
PropertyValueSource
Water Solubility0.025 g/LALOGPS
logP1.04ALOGPS
logP3.12ChemAxon
logS-4.5ALOGPS
pKa (Strongest Acidic)3.06ChemAxon
Physiological Charge-8ChemAxon
Hydrogen Acceptor Count18ChemAxon
Hydrogen Donor Count10ChemAxon
Polar Surface Area355.76 ŲChemAxon
Rotatable Bond Count20ChemAxon
Refractivity209.38 m³·mol⁻¹ChemAxon
Polarizability89.44 ųChemAxon
Number of Rings5ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations:Membrane
Reactions:
SMPDB Pathways:
Porphyrin metabolismPW000936 ThumbThumb?image type=greyscaleThumb?image type=simple
KEGG Pathways:
  • Porphyrin and chlorophyll metabolism ec00860
EcoCyc Pathways:
Concentrations
Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-002b-0000000590-ed03bd2dfabb11dffa05View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-006t-0000000940-5b3a240ffe55a81be5b8View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0avi-0000000920-e98aa012967f148e1d86View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0301-0000000790-d2080d5c77f3c757c10eView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00r2-0000000950-fad195608adfddb030b6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-052b-2000000930-856c98525e7bd6b9a47cView in MoNA
References
References:
  • Fazzio, T. G., Roth, J. R. (1996). "Evidence that the CysG protein catalyzes the first reaction specific to B12 synthesis in Salmonella typhimurium, insertion of cobalt." J Bacteriol 178:6952-6959. Pubmed: 8955319
  • 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. Pubmed: 22080510
  • 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. Pubmed: 21097882
  • 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. Pubmed: 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. Pubmed: 18331064
Synthesis Reference:Not Available
Material Safety Data Sheet (MSDS)Not Available
External Links:
ResourceLink
CHEBI ID18023
HMDB IDNot Available
Pubchem Compound ID196427
Kegg IDC05778
ChemSpider IDNot Available
Wikipedia IDSirohydrochlorin
BioCyc IDSIROHYDROCHLORIN
EcoCyc IDSIROHYDROCHLORIN

Enzymes

General function:
Involved in methyltransferase activity
Specific function:
Multifunctional enzyme that catalyzes the SAM-dependent methylation of uroporphyrinogen III at position C-2 and C-7 to form precorrin-2 and then position C-12 or C-18 to form trimethylpyrrocorphin 2. It also catalyzes the conversion of precorrin-2 into siroheme. This reaction consists of the NAD- dependent oxidation of precorrin-2 into sirohydrochlorin and its subsequent ferrochelation into siroheme
Gene Name:
cysG
Uniprot ID:
P0AEA8
Molecular weight:
49951
Reactions
S-adenosyl-L-methionine + uroporphyrinogen III = S-adenosyl-L-homocysteine + precorrin-1.
S-adenosyl-L-methionine + precorrin-1 = S-adenosyl-L-homocysteine + precorrin-2.
Precorrin-2 + NAD(+) = sirohydrochlorin + NADH.
Siroheme + 2 H(+) = sirohydrochlorin + Fe(2+).