2.02012-10-24 09:55:06 -06002015-09-16 17:34:55 -0600ECMDB23713M2MDB004103PG(19:iso/10:0)PG(19:iso/10:0) is a phosphatidylglycerol. Phosphatidylglycerols consist of a glycerol 3-phosphate backbone esterified to either saturated or unsaturated fatty acids on carbons 1 and 2. As is the case with diacylglycerols, phosphatidylglycerols can have many different combinations of fatty acids of varying lengths and saturation attached to the C-1 and C-2 positions. PG(19:iso/10:0), in particular, consists of one 17-methylocatdecanoyl chain to the C-1 atom, and one decanoyl to the C-2 atom. In E. coli glycerophospholipid metabolism, phosphatidylglycerol is formed from phosphatidic acid (1,2-diacyl-sn-glycerol 3-phosphate) by a sequence of enzymatic reactions that proceeds via two intermediates, cytidine diphosphate diacylglycerol (CDP-diacylglycerol) and phosphatidylglycerophosphate (PGP, a phosphorylated phosphatidylglycerol). Phosphatidylglycerols, along with CDP-diacylglycerol, also serve as precursor molecules for the synthesis of cardiolipin, a phospholipid found in membranes.1-17-methylocatdecanoyl-2-decanoyl-sn-glycero-3-phospho-(1'-glycerol)1-17-methylocatdecanoyl-2-decanoyl-sn-glycero-3-phosphoglycerol1-17-methylocatdecanoyl-2-decanoyl-sn-glycero-3-phosphoglycerolGPG(19:0/10:0)GPG(29:0)PG(19:0/10:0)PG(29:0)Phosphatidylglycerol(19:0/10:0)Phosphatidylglycerol(29:0)C35H69O10P680.8901680.46283494[2-(decanoyloxy)-3-[(17-methyloctadecanoyl)oxy]propoxy](2,3-dihydroxypropoxy)phosphinic acid2-(decanoyloxy)-3-[(17-methyloctadecanoyl)oxy]propoxy(2,3-dihydroxypropoxy)phosphinic acidCCCCCCCCCC(=O)OC(COC(=O)CCCCCCCCCCCCCCCC(C)C)COP(O)(=O)OCC(O)COInChI=1S/C35H69O10P/c1-4-5-6-7-15-20-23-26-35(39)45-33(30-44-46(40,41)43-28-32(37)27-36)29-42-34(38)25-22-19-17-14-12-10-8-9-11-13-16-18-21-24-31(2)3/h31-33,36-37H,4-30H2,1-3H3,(H,40,41)VRWRIAKPKRJESS-UHFFFAOYSA-NSolidMembranelogp6.86logs-6.45solubility2.44e-04 g/llogp9.45pka_strongest_acidic1.89pka_strongest_basic-3iupac[2-(decanoyloxy)-3-[(17-methyloctadecanoyl)oxy]propoxy](2,3-dihydroxypropoxy)phosphinic acidaverage_mass680.8901mono_mass680.46283494smilesCCCCCCCCCC(=O)OC(COC(=O)CCCCCCCCCCCCCCCC(C)C)COP(O)(=O)OCC(O)COformulaC35H69O10PinchiInChI=1S/C35H69O10P/c1-4-5-6-7-15-20-23-26-35(39)45-33(30-44-46(40,41)43-28-32(37)27-36)29-42-34(38)25-22-19-17-14-12-10-8-9-11-13-16-18-21-24-31(2)3/h31-33,36-37H,4-30H2,1-3H3,(H,40,41)inchikeyVRWRIAKPKRJESS-UHFFFAOYSA-Npolar_surface_area148.82refractivity181.45polarizability81.72rotatable_bond_count36acceptor_count6donor_count3physiological_charge-1formal_charge0Glycerophospholipid metabolismec00564phospholipid biosynthesis (CL(19:iso/10:0/19:iso/10:0))Phospholipids are membrane components in E. coli.
The major phospholipids of E. coli are phosphatidylethanolamine, phosphatidylglycerol and cardiolipin. All phospholipids contain sn-glycerol-3-phosphate esterified with fatty acids at the sn-1 and sn-2 positions.
The reaction starts from a glycerone phosphate (dihydroxyacetone phosphate) produced in glycolysis. The glycerone phosphate is transformed to a sn-glycerol 3-phosphate (glycerol 3 phosphate) by NADPH driven glycerol-3-phosphate dehydrogenase.
Sn-glycerol 3-phosphate is transformed to a 1-acyl-sn-glycerol 3-phosphate(1-oleyl-2-lyso-phosphatidate , 1-palmitoylglycerol 3-phosphate , 1-stearoyl-sn-glycerol 3-phosphate). This can be achieve by a sn-glycerol-3-phosphate 1-0-acyltransferase that interacts either with a long-chain acyl-CoA or with an acyl-[acp]. The 1-acyl-sn-glycerol 3-phosphate is transformed into a 1,2-diacyl-sn-glycerol 3-phosphate through a 1-acylglycerol-3-phosphate O-acyltransferase.
This compound is then converted into a CPD-diacylglycerol through a CTP (phosphatidate cytididyltransferase. CPD-diacylglycerol can be transformed either to a L-1-phosphatidylserine or a L-1-phosphatidylglycerol-phosphate through a phosphatidylserine synthase or a phosphatidylglycerophosphate synthase respectively. The L-1-phosphatidylserine transforms into L-1-phosphatidylethanolamine through a phosphatidylserine decarboxylase, o the other hand L-1-phosphatidylglycerol-phosphate gets transformed into a L-1-phosphatidyl-glycerol through a phosphatidylglycerophosphatase. These 2 products combines produce a cardiolipin and a ethanolamine.
The L-1 phosphatidyl-glycerol can also interact with cardiolipin synthase resulting in a glycerol and a cardiolipin.
PW001998MetabolicSpecdb::CMs1087032Specdb::MsMs24359Specdb::MsMs24360Specdb::MsMs24361Specdb::MsMs30917Specdb::MsMs30918Specdb::MsMs30919Kanehisa, 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-D114.22080510Casadei MA, MaƱas P, Niven G, Needs E, Mackey BM. (2002) "Role of membrane fluidity in pressure resistance of Escherichia coli NCTC 8164." Appl Environ Microbiol. 68(12):5965-72.12450817Yurtsever D. (2007). Fatty acid methyl ester profiling of Enterococcus and Esherichia coli for microbial source tracking. M.sc. Thesis. Villanova University: U.S.ALysophospholipase L2P07000PLDB_ECOLIpldBhttp://ecmdb.ca/proteins/P07000.xmlPhosphatidylglycerophosphatase BP0A924PGPB_ECOLIpgpBhttp://ecmdb.ca/proteins/P0A924.xmlPhosphatidylglycerophosphatase AP18200PGPA_ECOLIpgpAhttp://ecmdb.ca/proteins/P18200.xmlLipid A export ATP-binding/permease protein msbAP60752MSBA_ECOLImsbAhttp://ecmdb.ca/proteins/P60752.xmlProtein crcAP37001CRCA_ECOLIcrcAhttp://ecmdb.ca/proteins/P37001.xmlCardiolipin synthaseP0A6H8CLS_ECOLIclshttp://ecmdb.ca/proteins/P0A6H8.xmlPutative cardiolipin synthase ybhOP0AA84YBHO_ECOLIybhOhttp://ecmdb.ca/proteins/P0AA84.xmlProbable phospholipid ABC transporter-binding protein mlaBP64602MLAB_ECOLImlaBhttp://ecmdb.ca/proteins/P64602.xmlLipid A export ATP-binding/permease protein msbAP60752MSBA_ECOLImsbAhttp://ecmdb.ca/proteins/P60752.xmlProbable phospholipid ABC transporter-binding protein mlaDP64604MLAD_ECOLImlaDhttp://ecmdb.ca/proteins/P64604.xmlProbable phospholipid ABC transporter permease protein mlaEP64606MLAE_ECOLImlaEhttp://ecmdb.ca/proteins/P64606.xml2 PGP(19:iso/10:0) + Water >2 PG(19:iso/10:0) + PhosphatePW_R0056272 PG(19:iso/10:0) > Glycerol + CL(19:iso/10:0/19:iso/10:0)PW_R005628