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5'-Nucleotidases of Chicken Gizzard and Human Pancreatic Adenocarcinoma Cells Are Anchored to the Plasma Membrane Via a Phosphatidylinositol-glycan

Overview
Journal Biochem J
Specialty Biochemistry
Date 1989 Aug 15
PMID 2554891
Citations 16
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Abstract

We have analysed the membrane anchorage of plasma-membrane 5'-nucleotidase, an ectoenzyme which can mediate binding to components of the extracellular matrix. We demonstrated that the purified enzyme obtained from chicken gizzard and a human pancreatic adenocarcinoma cell line were both completely transformed into a hydrophilic form by treatment with phospholipases C and D, cleaving glycosylphosphatidylinositol (GPI). These data indicate the presence of a glycolipid linker employed for membrane anchoring of the 5'-nucleotidase obtained from both sources. Incubation of plasma membranes under identical conditions revealed that about half of the AMPase activity was resistant to GPI-hydrolysing phospholipases. Investigation of the enzymic properties of purified chicken gizzard 5'-nucleotidase revealed only minor changes after removal of the phosphatidylinositol linker. However, cleavage of the membrane anchor resulted in an increased sensitivity towards inhibition by concanavalin A. After tissue fractionation, chicken gizzard 5'-nucleotidase could be obtained as either a membrane-bound or a soluble protein; the latter is suspected to be released from the plasma membrane by endogenous phospholipases. Higher-molecular-mass proteins immuno-cross-reactive with the purified chicken gizzard 5'-nucleotidase were detected as both soluble and membrane-bound forms.

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References
1.
Thompson L, Ruedi J, Low M . Purification of 5'-nucleotidase from human placenta after release from plasma membranes by phosphatidylinositol-specific phospholipase C. Biochem Biophys Res Commun. 1987; 145(1):118-25. DOI: 10.1016/0006-291x(87)91295-2. View

2.
Lin P, Selinfreund R, Wakshull E, Wharton W . Rapid and efficient purification of plasma membrane from cultured cells: characterization of epidermal growth factor binding. Biochemistry. 1987; 26(3):731-6. DOI: 10.1021/bi00377a012. View

3.
Dickson G, Gower H, Barton C, Prentice H, Elsom V, Moore S . Human muscle neural cell adhesion molecule (N-CAM): identification of a muscle-specific sequence in the extracellular domain. Cell. 1987; 50(7):1119-30. DOI: 10.1016/0092-8674(87)90178-4. View

4.
Davitz M, Hereld D, Shak S, Krakow J, Englund P, NUSSENZWEIG V . A glycan-phosphatidylinositol-specific phospholipase D in human serum. Science. 1987; 238(4823):81-4. DOI: 10.1126/science.2443973. View

5.
Grondal E, Zimmermann H . Purification, characterization and cellular localization of 5'-nucleotidase from Torpedo electric organ. Biochem J. 1987; 245(3):805-10. PMC: 1148201. DOI: 10.1042/bj2450805. View