ACP6 hydrolyses MYS-LPA

Stable Identifier
Reaction [transition]
Homo sapiens
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Lysophosphatidic acid (LPA) is a bioactive phospholipid. It consists of a single fatty acyl chain, a glycerol backbone and a free phosphate group. The acyl chain can be of varying length and degree of saturation hence many forms of LPA can exist. LPA is an important extracellular signalling molecule and an intermediate lipid in phospholipid metabolism inside the cell, playing an important role in modulating the structure and fluidity of lipid rafts. Degradation of LPA is important for termination of signalling and for the finetuning of lipid raft structure. Degradation of LPA can occur via either acylation or hydrolysis. Lysophosphatidic acid phosphatase type 6 (ACP6) can hydrolyse LPA of varying lengths. It is a monomeric enzyme located in mitochondria where it preferentially hydrolyses myristoyl LPA (C14:0) and other LPAs such as monounsaturated oleate (C18:1) or palmitate (C16:0) (latter two not shown here) (Hiroyama & Takenawa 1999, Li et al. 2013).
Literature References
PubMed ID Title Journal Year
23807634 Crystal structures and biochemical studies of human lysophosphatidic acid phosphatase type 6

Lü, X, Li, J, Rao, Z, Zhang, XC, Peng, W, Wang, L, Dong, Y

Protein Cell 2013
10506173 Isolation of a cDNA encoding human lysophosphatidic acid phosphatase that is involved in the regulation of mitochondrial lipid biosynthesis

Hiroyama, M, Takenawa, T

J. Biol. Chem. 1999
Catalyst Activity

lysophosphatidic acid phosphatase activity of ACP6 [mitochondrial matrix]

Orthologous Events
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