2.02012-10-24 09:55:00 -06002015-12-09 12:06:55 -0700ECMDB23682M2MDB004072PG(14:0/12:0(3-OH))PG(14:0/12:0(3-OH)) 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(14:0/12:0(3-OH)), in particular, consists of one tetradecanoyl chain to the C-1 atom, and one 3-hydroxydodecanoyl 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-myristoyl-2-3-hydroxydodecanoyl-sn-glycero-3-phosphoglycerol1-tetradecanoyl-2-3-hydroxydodecanoyl-sn-glycero-3-phospho-(1'-glycerol)1-tetradecanoyl-2-3-hydroxydodecanoyl-sn-glycero-3-phosphoglycerolGPG(14:0/12:0)GPG(26:0)PG(14:0/12:0)PG(26:0)Phosphatidylglycerol(14:0/12:0)Phosphatidylglycerol(26:0)C32H63O11P654.819654.410799847[(2S)-2,3-dihydroxypropoxy][(2R)-3-[(3-hydroxydodecanoyl)oxy]-2-(tetradecanoyloxy)propoxy]phosphinic acid(2S)-2,3-dihydroxypropoxy((2R)-3-[(3-hydroxydodecanoyl)oxy]-2-(tetradecanoyloxy)propoxy)phosphinic acid[H][C@](O)(CO)COP(O)(=O)OC[C@@]([H])(COC(=O)CC(O)CCCCCCCCC)OC(=O)CCCCCCCCCCCCCInChI=1S/C32H63O11P/c1-3-5-7-9-11-12-13-14-16-18-20-22-31(36)43-30(27-42-44(38,39)41-25-29(35)24-33)26-40-32(37)23-28(34)21-19-17-15-10-8-6-4-2/h28-30,33-35H,3-27H2,1-2H3,(H,38,39)/t28?,29-,30+/m0/s1DZZCPOYJBYZBMC-YHCMTOLSSA-NSolidMembranelogp5.13logs-5.80solubility1.04e-03 g/llogp7.04pka_strongest_acidic1.89pka_strongest_basic-2.8iupac[(2S)-2,3-dihydroxypropoxy][(2R)-3-[(3-hydroxydodecanoyl)oxy]-2-(tetradecanoyloxy)propoxy]phosphinic acidaverage_mass654.819mono_mass654.410799847smiles[H][C@](O)(CO)COP(O)(=O)OC[C@@]([H])(COC(=O)CC(O)CCCCCCCCC)OC(=O)CCCCCCCCCCCCCformulaC32H63O11PinchiInChI=1S/C32H63O11P/c1-3-5-7-9-11-12-13-14-16-18-20-22-31(36)43-30(27-42-44(38,39)41-25-29(35)24-33)26-40-32(37)23-28(34)21-19-17-15-10-8-6-4-2/h28-30,33-35H,3-27H2,1-2H3,(H,38,39)/t28?,29-,30+/m0/s1inchikeyDZZCPOYJBYZBMC-YHCMTOLSSA-Npolar_surface_area169.05refractivity169.22polarizability75.81rotatable_bond_count34acceptor_count7donor_count4physiological_charge-1formal_charge0Glycerophospholipid metabolismec00564phospholipid biosynthesis (CL(14:0/12:0(3-OH)/14:0/12:0(3-OH)))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.
PW001943MetabolicSpecdb::CMs1085885Specdb::MsMs1410142Specdb::MsMs1410143Specdb::MsMs1410144Specdb::MsMs1295479Specdb::MsMs1295480Specdb::MsMs1295481Kanehisa, 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-D114.22080510Taylor SS, Heath EC. (1969) "The incorporation of beta-hydroxy fatty acids into a phospholipid of Escherichia coli B." J Biol Chem. 244(24):6605-16.4902888Yurtsever 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(14:0/12:0(3-OH)) + Water >2 PG(14:0/12:0(3-OH)) + PhosphatePW_R0054612 PG(14:0/12:0(3-OH)) > Glycerol + CL(14:0/12:0(3-OH)/14:0/12:0(3-OH))PW_R005462