Design, synthesis of ceramide 1-phosphate analogs and their affinity for cytosolic phospholipase A2 as evidenced by surface plasmon resonance
Bioorganic & Medicinal Chemistry Letters(2024)
Abstract
Ceramide 1-phosphate (C1P) is a lipid mediator that specifically binds and activates cytosolic phospholipase A2α (cPLA2α). To elucidate the structure–activity relationship of the affinity of C1P for cPLA2α in lipid environments, we prepared a series of C1P analogs containing structural modifications in the hydrophilic parts and subjected them to surface plasmon resonance (SPR). The results suggested the presence of a specific binding site for cPLA2α on the amide, 3-OH and phosphate groups in C1P structure. Especially, dihydro-C1P exhibited enhanced affinity for cPLA2α, suggesting the hydrogen bonding ability of 3-hydroxy group is important for interactions with cPLA2α. This study helps to understand the influence of specific structural moieties of C1P on the interaction with cPLA2α at the atomistic level and may lead to the design of drugs that regulate cPLA2α activation.
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Key words
Ceramide 1-phosphate,Cytosolic phospholipase A2α,Surface plasmon resonance,Lipid-protein interaction
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