The Molecular Biology of Eosinophil Granule Proteins
- 1 January 1991
- journal article
- review article
- Published by S. Karger AG in International Archives of Allergy and Immunology
- Vol. 94 (1-4) , 202-209
- https://doi.org/10.1159/000235362
Abstract
Here, we briefly review the molecular biology of the human eosinophil granule proteins, major basic protein (MBP), eosinophil peroxidase (EPO), eosinophil cationic protein (ECP) and eosinophil-derived neurotoxin (EDN). The nucleotide sequence of MBP cDNA indicates that MBP is translated as a 25.2-kilodalton preproprotein; the mpb gene consists of 6 exons and 5 introns spanning 3.3 kilobases (kb). The ∼2.1-kb nucleotide sequence of EPO cDNA corresponds to a prosequence, light chain and heavy chain in that order; similarities to other peroxidases suggest the existence of a multigene family. EDN and ECP cDNAs and genes are remarkably similar throughout, suggesting a relatively recent divergence. Promoter regions of the 4 genes show interesting differences and similarities which may be related to differential gene regulation.Keywords
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