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Author

Suh, Pann-Ghill
BioSignal Network Lab (BSN)
Research Interests
  • Signal transduction, cancer, metabolism, phospholipase C

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PURIFICATION AND SOME PROPERTIES OF A PHOSPHOLIPASE-A2 FROM BOVINE PLATELETS

Cited 45 times inthomson ciCited 13 times inthomson ci
Title
PURIFICATION AND SOME PROPERTIES OF A PHOSPHOLIPASE-A2 FROM BOVINE PLATELETS
Author
KIM, DKSuh, Pann-GhillRYU, SH
Keywords
SELECTIVE RELEASE; ACTIVATING FACTOR; RAT PLATELETS; CALCIUM-ION; THROMBIN; IDENTIFICATION; HYDROLYSIS; ACID
Issue Date
199101
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
Citation
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, v.174, no.1, pp.189 - 196
Abstract
An intracellular form of phospholipase A2 was purified about 47,500-fold to near homogeneity from bovine platelets 100,000 × g supernatant by sequential use of column chromatographies on Heparin-Sepharose, DEAE-Sephacel, Butyl-Toyopearl, Sephacryl S-300, DEAE-5PW HPLC, TSK G 3000 SW HPLC and Mono Q FPLC. The final preparation showed a single band on SDS-polyacrylamide gel, and its molecular mass was estimated to be approximately 100,000 daltons. The purified PLA2 showed maximal activity at alkaline pH(pH 9.0-10.0) and considerable activity at 0.3-1.0μM calcium concentration. It hydrolyzed phosphatidylcholine containing arachidonate at sn-2 position with high selectivity in comparison to linoleate.
URI
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DOI
http://dx.doi.org/10.1016/0006-291X(91)90504-Z
ISSN
0006-291X
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