Abstract. We present a comparison of fast-response instruments installed onboard the NASA DC-8 aircraft that measured nitrogen oxides (NO and NO2), nitrous acid (HONO), total reactive odd (measured both as (NOy) from sum individually species (ΣNOy)), carbon monoxide (CO) in troposphere during 2019 Fire Influence on Regional to Global Environments Air Quality (FIREX-AQ) campaign. By targeting sm...

Acyl-CoA:2-acyl-sn-glycero-3-phosphocholine (GPC) acyltransferase is required for the maintenance of the asymmetric distribution of saturated fatty acids at the C-1 position of phosphatidylcholine; however, this activity has been reported to be absent in cardiac tissue. In the present study a very active acyl-CoA:2-acyl-GPC activity was detected and characterized in guinea-pig heart microsomes ...

Lysophospholipids (LysoGPs) serve as lipid mediators and precursors for synthesis of diacyl phospholipids (GPs). LysoGPs detected in cells have various acyl chains attached at either the sn-1 or sn-2 position of the glycerol backbone. In general, acyl chains at the sn-2 position of 2-acyl-1-LysoGPs readily move to the sn-1 position, generating 1-acyl-2-lyso isomers by a nonenzymatic reaction ca...

The intracellular concentration of free unbound acyl-CoA esters is tightly controlled by feedback inhibition of the acyl-CoA synthetase and is buffered by specific acyl-CoA binding proteins. Excessive increases in the concentration are expected to be prevented by conversion into acylcarnitines or by hydrolysis by acyl-CoA hydrolases. Under normal physiological conditions the free cytosolic conc...

The sn-glycerol-3-phosphate acyltransferase activity of Escherichia coli has been assayed using native palmitoyl-acyl carrier protein as the acyl donor. This substrate was synthesized by a plant chloroplast system which utilized E. coli acyl carrier protein. The properties of the acyltransferase as assayed with palmitoyl-acyl carrier protein were similar to those observed using palmitoyl-CoA as...

Acyl-CoA-dependent O-acyltransferases catalyze reactions in which fatty acyl-CoAs are joined to acyl acceptors containing free hydroxyl groups to produce neutral lipids. In this report, we characterize a human multifunctional O-acyltransferase (designated MFAT) that belongs to the acyl-CoA:diacylglycerol acyltransferase 2/acyl-CoA:monoacylglycerol acyltransferase (MGAT) gene family and is highl...

The title compound, C(17)H(11)NO(3), was an inter-mediate synthesized during bis-acyl-ation of 2-amino-1,4-naphtho-quinone with benzoyl chloride. A mixture of block- and needle-shaped crystals were obtained after column chromatography. The block-shaped crystals were identified as the imide and the needles were the title amide. The naphtho-quinone scaffold is roughly planar (r.m.s. deviation = 0...

A cerulenin insensitive 3-ketoacyl-acyl carrier protein synthase has been assayed in extracts of spinach (Spinacia oleracea) leaf. The enzyme was active in the 40 to 80% ammonium sulfate precipitate of whole leaf homogenates and catalyzed the synthesis of acetoacetyl-acyl carrier protein. This condensation reaction was five-fold faster than acetyl-CoA:acyl carrier protein transacylase, and the ...