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Cloning and Recombinant Expression of Phospholipase A2 Present in Rheumatoid Arthritic Synovial Fluid

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Seilhamer, J J, Pruzanski, W, Vadas, P, Plant, S, Miller, J A, Kloss, J, Johnson, L K·1989·Journal of Biological Chemistry

Abstract

Synovial fluid from arthritic patients contains multiple forms of phospholipase A2 (PLA2), as resolved by high performance liquid chromatography (Seilhamer, J.J., Plant, S., Pruzanski, W., Schilling, J., Stefanski, E., Vadas, P., and Johnson, L. K. (1989) J. Biochem. (Tokyo), submitted for publication). Here we describe the cloning of a human 4.5-kilobase gene and 800-base pair cDNA encoding the form representing the major peak of activity and protein mass (peak A). The clones encode a mature peptide of 124 amino acids, which follows a prepeptide of 20 residues. The deduced amino acid sequence constitutes an enzyme of the "Type II" class of PLA2s, and resembles PLA2s from other mammalian sources. This represents the first report of a full length mammalian non-pancreatic PLA2 sequence. Active transcription of this PLA2 gene was detected in two different inflammatory cell sources. Recombinant human peak A PLA2 was expressed in vaccinia as a secreted protein which accumulated in conditioned medium.

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Metadata

Authors
Seilhamer, J. J., Pruzanski, W., Vadas, P., Plant, S., Miller, J. A., Kloss, J., & Johnson, L. K.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1989-04
Volume
264
Issue
10
Pages
5335-5338
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1696959307
Cited by
533
References
0
FWCI
36.83
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Cloning and Recombinant Expression of Phospholipase A2 Present in Rheumatoid Arthritic Synovial Fluid. https://app.cochat.ai/papers/10.1016/s0021-9258(18)83549-9
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Seilhamer, J. J., Pruzanski, W., Vadas, P., Plant, S., Miller, J. A., Kloss, J., & Johnson, L. K. (1989). Cloning and Recombinant Expression of Phospholipase A2 Present in Rheumatoid Arthritic Synovial Fluid. Journal of Biological Chemistry. https://doi.org/10.1016/s0021-9258(18)83549-9

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