PGP(a-13:0/i-12:0)

Found 4 Sample Hits

m/z	Adducts	Species	Organ	Scanning	Sample
687.3695	[M+H-H2O]+ PPM:9.1	Homo sapiens	Liver	MALDI (DHB)	20171107_FIT4_DHBpos_p70_s50 - Rappez et al (2021) SpaceM reveals metabolic states of single cells Resolution: 50μm, 70x70 Description
704.3905	[M-H2O+NH4]+ PPM:1	Rattus norvegicus	Epididymis	MALDI (DHB)	epik_dhb_head_ito03_17 - MTBLS58 Resolution: 17μm, 208x108 Description 1 male adult wild-type rat was obtained from Inserm U1085 - Irset Research Institute (University of Rennes1, France). Animals were age 60 days and were reared under ad-lib conditions. Care and handling of all animals complied with EU directive 2010/63/EU on the protection of animals used for scientific purposes. The whole epididymis was excised from each animal immediately post-mortem, loosely wrapped rapidly in an aluminum foil and a 2.5% (w/v) carboxymethylcellulose (CMC) solution was poured to embed the epididymis to preserve their morphology. To remove air bubbles, the filled aluminum molds was gently freezed by depositing it on isopentane or dry ice, then on the nitrogen vapors and finally by progressively dipping the CMC/sample coated with aluminum foil into liquid nitrogen (or only flush with liquid nitrogen). Frozen tissues were stored at -80 °C until use to avoid degradation.
704.3904	[M-H2O+NH4]+ PPM:0.8	Rattus norvegicus	Epididymis	MALDI (DHB)	epik_dhb_head_ito03_18 - MTBLS58 Resolution: 17μm, 208x104 Description
704.3903	[M-H2O+NH4]+ PPM:0.7	Rattus norvegicus	Epididymis	MALDI (DHB)	epik_dhb_head_ito03_14 - MTBLS58 Resolution: 17μm, 205x103 Description

PGP(a-13:0/i-12:0) is a phosphatidylglycerophosphate (PGP). It is a glycerophospholipid in which a phosphoglycerol moiety occupies a glycerol substitution site followed by another phosphate moiety. Phosphatidylglycerolphosphate is present at a level of 1-2\\% in most animal tissues, but it can be the second most abundant phospholipid in lung surfactant (up to 11\\% of the total). It is well established that the concentration of phosphatidylglycerolphosphate increases during fetal development. Phosphatidylglycerolphosphate may be present in animal tissues merely as a precursor for cardiolipin synthesis. As is the case with diacylglycerols, phosphatidylglycerophosphates can have many different combinations of fatty acids of varying lengths and saturation attached to the C-1 and C-2 positions. Fatty acids containing 16, 18 and 20 carbons are the most common. PGP(a-13:0/i-12:0), in particular, consists of one chain of anteisotridecanoic acid at the C-1 position and one chain of isododecanoic acid at the C-2 position. They are synthesized by the addition of glycerol 3-phosphate to a CDP-diacylglycerol. In turn, PGPs are dephosphorylated to phosphatidylglycerols (PGs). While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the glycerol backbone, the fatty acid distribution at the C-1 and C-2 positions of glycerol within phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes.