The gene EPX (eosinophil peroxidase) is mapped to human chromosome 17q22. The gene encodes for a secondary granule protein. The EPX protein is mainly secreted by eosinophils. It belongs to the alarmin family of proteins.
Synonyms: Anti-EPO; Anti-EPP; Anti-EPX-PEN; Anti-eosinophil peroxidase
Storage: -20C
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Biochem Physiol Actions: EPX (eosinophil peroxidase) is a heme-containing enzyme. It is also a pro-angiogenic protein and stimulates endothelial cells to control vessel development. Levels of EPX in sputum is connected with eosinophil cell counts in the sputum. Single nucleotide polymorphism in this gene is associated with inflammatory bowel disease. This association is dependent on the age and gender of the person. Humans with ulcerative colitis show high intraluminal release of EPX. EPX is also linked with various cancers. Absence or low activity of EPX causes hereditary eosinophil peroxidase deficiency.
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