THE EFFECT OF SOME DETERGENTS AND STABILIZING AGENTS ON PLASMA MEMBRANE PHOSPHATIDATE PHOSPHOHYDROLASE OF RAT LIVER

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HAZRATI LEYLAN AKRAM

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Journal Paper

Paper Information

Journal: Journal of Kermanshah University of Medical Sciences Year:2009 | Volume:13 | Issue:1 (40) Page(s): 10-19

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Title

THE EFFECT OF SOME DETERGENTS AND STABILIZING AGENTS ON PLASMA MEMBRANE PHOSPHATIDATE PHOSPHOHYDROLASE OF RAT LIVER

Author(s)

HAZRATI LEYLAN AKRAM | Issue Writer Certificate

Keywords

PHOSPHATIDATE PHOSPHOHYDROLASE

DETERGENTS

TREHALOSE

SUCROSE

ALBUMIN

Abstract

Background: PHOSPHATIDATE PHOSPHOHYDROLASE (PAP) catalyzes the dephosphorylation of phosphatidic acid to yield Pi and diacylglycerol. Two different forms of PAP have been reported in rat hepatocyte: PAP1 that participates in the synthesis of phospholipids and triacylglycerols and PAP2 which is involved in lipid signaling pathways. Two isoforms of PAP2 are PAP2a and PAP2b. This study examines the effect of DETERGENTS such as Tween 80 lubrol, PX and CTAB as well as stabilizing factors including TREHALOSE, SUCROSE, and ALBUMIN on the stability and activity of PAP2b. Methods: 14 Wistar rats weighing between 200-250 grams were used in the study. PAP2b was purified from liver plasma membrane by solubilizing with n-octyle glucoside and through several chromatography stages. Gel electrophoresis (SDSPAGE) was performed in 10%gel slab in order to determine the purity level and to measure the molecular weight and number of the enzyme subunit. The effect of TREHALOSE, SUCROSE, and ALBUMIN was examined on the stimulation of enzyme activity in different concentrations. Results: The specific activity of purified enzyme was 7350 mU/mg protein. The purified enzyme showed a single band on SDS-PAGE with a MW of about 33.8 kDa. The enzyme was approximately activated 3times by lubrol PX and Tween 80 both at 3 mM. The activation by CTAB occurred at 1Mm.Trehalose, SUCROSE and ALBUMIN had the most stability effect on PAP2b in concentration of 3, 7 and 10 percent respectively. Conclusions: Tween 80, lubrol PX, and CTAB have the ability to activate PAP2b. In case a nondetergent agent is required to stabalize PAP2b TREHALOSE is preferred to SUCROSE and ALBUMIN. The lubrol PX has a higher potential stimulatory effect to activate PAP2b. compared to other ionic and nonionic DETERGENTS.

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APA: Copy

HAZRATI LEYLAN, AKRAM. (2009). THE EFFECT OF SOME DETERGENTS AND STABILIZING AGENTS ON PLASMA MEMBRANE PHOSPHATIDATE PHOSPHOHYDROLASE OF RAT LIVER. JOURNAL OF KERMANSHAH UNIVERSITY OF MEDICAL SCIENCES (BEHBOOD), 13(1 (40)), 10-19. SID. https://sid.ir/paper/573201/en

Vancouver: Copy

HAZRATI LEYLAN AKRAM. THE EFFECT OF SOME DETERGENTS AND STABILIZING AGENTS ON PLASMA MEMBRANE PHOSPHATIDATE PHOSPHOHYDROLASE OF RAT LIVER. JOURNAL OF KERMANSHAH UNIVERSITY OF MEDICAL SCIENCES (BEHBOOD)[Internet]. 2009;13(1 (40)):10-19. Available from: https://sid.ir/paper/573201/en

IEEE: Copy

AKRAM HAZRATI LEYLAN, “THE EFFECT OF SOME DETERGENTS AND STABILIZING AGENTS ON PLASMA MEMBRANE PHOSPHATIDATE PHOSPHOHYDROLASE OF RAT LIVER,” JOURNAL OF KERMANSHAH UNIVERSITY OF MEDICAL SCIENCES (BEHBOOD), vol. 13, no. 1 (40), pp. 10–19, 2009, [Online]. Available: https://sid.ir/paper/573201/en

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