1-Oleoyl-2-hydroxy-sn-glycero-3-PG (sodium salt)

CAS No. : 326495-24-3

1-Oleoyl-2-hydroxy-sn-glycero-3-PG (sodium salt),326495-24-3
Product Details
Cat No:R066879
Synonyms:​18:1 Lyso-PG;1-Oleoyl-2-hydroxy-sn-glycero-3-phospho-(1'-rac-glycerol);1-Oleoyl-2-hydroxy-sn-glycero-3-phosphoglycerol
Molecular Formula:C24H47NaO9P
Molecular Weight:533.595
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Cat No:R066879
Cas No:326495-24-3
Product-Name:1-Oleoyl-2-hydroxy-sn-glycero-3-PG (sodium salt)
IUPAC Name:[(2R)-3-[2,3-dihydroxypropoxy(hydroxy)phosphoryl]oxy-2-hydroxypropyl] (Z)-octadec-9-enoate;sodium
1-Oleoyl-2-hydroxy-sn-glycero-3-PG (sodium salt) is a lysophospholipid containing oleic acid (18:1) at the sn-1 position. It can be used in the generation of micelles, liposomes, and other types of artificial membranes, including lipid-based drug carrier systems.
1.Chadwick, A.C.,Jensen, D.R.,Peterson, F.C., et al. Expression, purification and reconstitution of the C-terminal transmembrane domain of scavenger receptor BI into detergent micelles for NMR analysis. Protein Expr. Purif. 107, 35-42 (2015).

Scavenger receptor class B type I (SR-BI), the high density lipoprotein (HDL) receptor, is important for the delivery of HDL-cholesteryl esters to the liver for excretion via bile formation. The focus on therapeutic strategies aimed at reducing cholesterol levels highlights the critical need to understand the structural features of SR-BI that drive cholesterol removal. Yet, in the absence of a high-resolution structure of SR-BI, our understanding of how SR-BI interacts with HDL is limited. In this study, we have optimized the NMR solution conditions for the structural analysis of the C-terminal transmembrane domain of SR-BI that harbors putative domains required for receptor oligomerization. An isotopically-labeled SR-BI peptide encompassing residues 405–475 was bacterially-expressed and purified. [U-15N]-SR-BI(405–475) was incorporated into different detergent micelles and assessed by 1H-15N-HSQC in order to determine which detergent micelle best maintained SR-BI(405–475) in a folded, native conformation for subsequent NMR analyses. We also determined the optimal detergent concentration used in micelles, as well as temperature, solution buffer and pH conditions. Based on 1H-15N-HSQC peak dispersion, intensity, and uniformity, we determined that [U-15N]-SR-BI(405–475) should be incorporated into 5% detergent micelles consisting of 1-palmitoyl-2-hydroxy-sn-glycero-3-phospho-[1’-rac-glycerol] (LPPG) and data collected at 40°C in a non-buffered solution at pH 6.8. Furthermore, we demonstrate the ability of SR-BI(405–475) to form dimers upon chemical crosslinking. These studies represent the first steps in obtaining high-resolution structural information by NMR for the HDL receptor that plays a critical role in regulating whole body cholesterol removal.
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