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  • Title: The molecular biology of eosinophil granule proteins.
    Author: Hamann KJ, Barker RL, Ten RM, Gleich GJ.
    Journal: Int Arch Allergy Appl Immunol; 1991; 94(1-4):202-9. PubMed ID: 1657792.
    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 approximately 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.
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