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Comparison of Properties of Membrane Bound Versus Soluble Forms of Human Leukocytic Elastase and Cathepsin G by Neelesh Bangalore; James Travis is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is Comparison of Properties of Membrane Bound Versus Soluble Forms of Human Leukocytic Elastase and Cathepsin G about?
Stimulation of human neutrophils with micromolar concentrations of N-formyl-methionyl-leucyl-phenylalanine (fMLP) or 4 -phorbol-12 -myristate-13a-acetate (PMA), results in their degranulation and/or lysis with a concomitant release of Human Leucocyte Elastase (HLE; EC 3.4.21.37), Cathepsin G (cat Q; EC 3.4.21.20) and Myeloperoxidase (MPO; EC 1.11.1.7) into the surrounding medium, some of which re-bind in an active form to neutrophil plasma membranes or membrane fragments. Histones, when present in the medium, prevent this association indicating that it is largely charge dependent. Bound proteinases have an increased resistance to inhibition by protein proteinase inhibitors, while bound MPO retains its ability to oxidatively inactivate a-1-proteinase inhibitor (α-1-ΡΙ). The attachment of oxidases and proteinases to plasma membrane or its fragments may allow them to remain active in an environment replete with proteinase inhibitors and, therefore, may be responsible for neutrophil or neutrophil-debris mediated tissue damage.
Who reads Comparison of Properties of Membrane Bound Versus Soluble Forms of Human Leukocytic Elastase and Cathepsin G?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Neelesh Bangalore; James Travis
- Publisher
- Walter de Gruyter GmbH
- Published
- 1994
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)