Eosinophilic cationic protein

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Eosinophilic cationic protein
Eosinophilic cationic protein

Existing structural data : 1DYT , 1H1H , 1QMT , 2KB5 , 2LVZ , 4A2O , 4A2Y , 4OWZ , 4OXB , 4OXF

Properties of human protein
Mass / length primary structure 133 amino acids
Identifier
Gene name RNASE3
External IDs
Enzyme classification
EC, category 3.1.27. Nuclease
Response type hydrolysis
Substrate RNA
Products Degradation products
Occurrence
Homology family RNase 4
Parent taxon Vertebrates
Orthologue
human House mouse
Entrez 6037 503847
Ensemble ENSG00000169397 ENSMUSG00000050766
UniProt P12724 O35291
Refseq (mRNA) NM_002935 NM_017389
Refseq (protein) NP_002926 NP_059085
Gene locus Chr 14: 20.89 - 20.89 Mb Chr 14: 51.2 - 51.2 Mb
PubMed search 6037 503847

The eosinophil cationic protein (ECP) is an antibiotic and anthelmintic produced by the human body . It is selectively synthesized in eosinophil granulocytes . Along with EDN, it is one of the main components of the eosinophilic granules. Both proteins are ribonucleases of the RNase A superfamily . Similar RNAses are found in all vertebrates .

effect

ECP is secreted by the eosinophilic granulocytes into the surrounding tissue as part of inflammatory reactions and has a local cytotoxic effect on various bacteria and parasites , but also on the body's own cells, e.g. B. on the epithelium in the airways.

Medical importance

The eosinophils play an important role in the pathogenesis of bronchial asthma . There is a close correlation between the number of eosinophils and the ECP concentration. Since there is also a correlation between the ECP concentration in the blood and the extent of the severity of the asthma, this parameter can e.g. B. contribute to monitoring the progress of asthma therapy.

Individual evidence

  1. ^ A. Fiocchi, L. Terracciano, A. Martelli, F. Guerriero, L. Bernardo: The natural history of childhood-onset asthma. In: Allergy and Asthma Proceedings . Volume 27, Number 3, 2006 May-Jun, pp. 178-185, PMID 16913259 .