Enzymes
UniProtKB help_outline | 7 proteins |
Reaction participants Show >> << Hide
- Name help_outline 1ʼ-[1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phospho]-3ʼ-[1-(9Z-octadecenoyl)-sn-glycero-3-phospho]-glycerol Identifier CHEBI:77259 Charge -2 Formula C63H116O16P2 InChIKeyhelp_outline NGKFXJNJRVPYMN-IYJDKBLTSA-L SMILEShelp_outline CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)COP([O-])(=O)OCC(O)COP([O-])(=O)OC[C@@H](COC(=O)CCCCCCC\C=C/CCCCCCCC)OC(=O)CCCCCCC\C=C/CCCCCCCC 2D coordinates Mol file for the small molecule Search links Involved in 10 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H2O Identifier CHEBI:15377 (Beilstein: 3587155; CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,048 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline (9Z)-octadecenoate Identifier CHEBI:30823 (Beilstein: 1913148; CAS: 115-06-0) help_outline Charge -1 Formula C18H33O2 InChIKeyhelp_outline ZQPPMHVWECSIRJ-KTKRTIGZSA-M SMILEShelp_outline CCCCCCCC\C=C/CCCCCCCC([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 114 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 1ʼ,3ʼ-bis-[1-(9Z-octadecenoyl)-sn-glycero-3-phospho]-glycerol Identifier CHEBI:77256 Charge -2 Formula C45H84O15P2 InChIKeyhelp_outline TZWVVHWEXQUYPT-YDAWRACYSA-L SMILEShelp_outline CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)COP([O-])(=O)OCC(O)COP([O-])(=O)OC[C@H](O)COC(=O)CCCCCCC\C=C/CCCCCCCC 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,176 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
RHEA:40467 | RHEA:40468 | RHEA:40469 | RHEA:40470 | |
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Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Assessing phospholipase A2 activity toward cardiolipin by mass spectrometry.
Hsu Y.H., Dumlao D.S., Cao J., Dennis E.A.
Cardiolipin, a major component of mitochondria, is critical for mitochondrial functioning including the regulation of cytochrome c release during apoptosis and proper electron transport. Mitochondrial cardiolipin with its unique bulky amphipathic structure is a potential substrate for phospholipas ... >> More
Cardiolipin, a major component of mitochondria, is critical for mitochondrial functioning including the regulation of cytochrome c release during apoptosis and proper electron transport. Mitochondrial cardiolipin with its unique bulky amphipathic structure is a potential substrate for phospholipase A2 (PLA2) in vivo. We have developed mass spectrometric methodology for analyzing PLA2 activity toward various cardiolipin forms and demonstrate that cardiolipin is a substrate for sPLA2, cPLA2 and iPLA2, but not for Lp-PLA2. Our results also show that none of these PLA2s have significant PLA1 activities toward dilyso-cardiolipin. To understand the mechanism of cardiolipin hydrolysis by PLA2, we also quantified the release of monolyso-cardiolipin and dilyso-cardiolipin in the PLA2 assays. The sPLA2s caused an accumulation of dilyso-cardiolipin, in contrast to iPLA2 which caused an accumulation of monolyso-cardiolipin. Moreover, cardiolipin inhibits iPLA2 and cPLA2, and activates sPLA2 at low mol fractions in mixed micelles of Triton X-100 with the substrate 1-palmitoyl-2-arachidonyl-sn-phosphtidylcholine. Thus, cardiolipin functions as both a substrate and a regulator of PLA2 activity and the ability to assay the various forms of PLA2 is important in understanding its function. << Less
PLoS ONE 8:E59267-E59267(2013) [PubMed] [EuropePMC]
This publication is cited by 4 other entries.