3vi8
Human PPAR alpha ligand binding domain in complex with a synthetic agonist APHM13
Structural highlights
FunctionPPARA_HUMAN Ligand-activated transcription factor. Key regulator of lipid metabolism. Activated by the endogenous ligand 1-palmitoyl-2-oleoyl-sn-glycerol-3-phosphocholine (16:0/18:1-GPC). Activated by oleylethanolamide, a naturally occurring lipid that regulates satiety (By similarity). Receptor for peroxisome proliferators such as hypolipidemic drugs and fatty acids. Regulates the peroxisomal beta-oxidation pathway of fatty acids. Functions as transcription activator for the ACOX1 and P450 genes. Transactivation activity requires heterodimerization with RXRA and is antagonized by NR2C2.[1] [2] [3] [4] Publication Abstract from PubMedHuman peroxisome proliferator-activated receptors (hPPARs) are ligand-dependent transcription factors that control various biological responses, and there are three subtypes: hPPARalpha, hPPARdelta, and hPPARgamma. We report here that alpha-substituted phenylpropanoic acid-type hPPAR agonists with similar structure bind to the hPPAR ligand binding domain (LBD) in different conformations, depending on the receptor subtype. These results might indicate that hPPAR ligand binding pockets have multiple binding points that can be utilized to accommodate structurally flexible hPPAR ligands. Peroxisome proliferator-activated receptors (PPARs) have multiple binding points that accommodate ligands in various conformations: phenylpropanoic acid-type PPAR ligands bind to PPAR in different conformations, depending on the subtype.,Kuwabara N, Oyama T, Tomioka D, Ohashi M, Yanagisawa J, Shimizu T, Miyachi H J Med Chem. 2012 Jan 26;55(2):893-902. Epub 2012 Jan 10. PMID:22185225[5] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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