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| Content Provider | PubMed Central |
|---|---|
| Author | Minkler, Paul E. Hoppel, Charles L. |
| Copyright Year | 2010 |
| Abstract | An improved high-performance liquid chromatography-mass spectrometry method for the separation and characterization of cardiolipin molecular species is presented. Reverse-phase ion pair chromatography with acidified triethylamine resulted in increased chromatographic retention and resolution when compared with chromatography without acidified triethylamine. Using a hybrid triple quadrupole linear ion trap mass spectrometer to generate MS/MS spectra revealed three regions within each spectrum that could be used to deduce the structure of the cardiolipin molecular species: the diacylglycerol phosphate region, the monoacylglycerol phosphate region, and the fatty acid region. Cardiolipin standards of known composition were analyzed and exhibited expected chromatographic and mass spectral results. Two minor components in commercial bovine heart cardiolipin, (with the same molecular weight but different chromatographic retention times), were shown to differ by fatty acid composition: (C18:2)2(C18:1)2 versus (C18:2)3(C18:0)1. These compounds were then analyzed by HPLC-MS3 to examine specific diac ylglycerol phosphate generated fatty acid fragmentation. Also, two commercial sources of bovine heart cardiolipin were shown to have minor differences in cardiolipin species content. Cardiolipin isolated from rat liver, mouse heart, and dog heart mitochondria were then characterized and the relative distributions of the major cardiolipin species were determined. |
| Related Links | http://dx.doi.org/10.1194/jlr.d002857 |
| Ending Page | 865 |
| Page Count | 10 |
| Starting Page | 856 |
| File Format | |
| ISSN | 00222275 |
| e-ISSN | 15397262 |
| Journal | Journal of Lipid Research |
| Issue Number | 4 |
| Volume Number | 51 |
| Language | English |
| Publisher | The American Society for Biochemistry and Molecular Biology |
| Publisher Date | 2010-04-01 |
| Access Restriction | Open |
| Rights Holder | The American Society for Biochemistry and Molecular Biology |
| Subject Keyword | Cell Biology Biochemistry Endocrinology Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Biochemistry Endocrinology |
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