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Pilosulins: A review of the structure and mode of action of venom peptides from an Australian ant Myrmecia pilosula

Citation

Wanandy, T and Guven, N and Davies, NW and Brown, SGA and Wiese, MD, Pilosulins: A review of the structure and mode of action of venom peptides from an Australian ant Myrmecia pilosula, Toxicon, 98 pp. 54-61. ISSN 0041-0101 (2015) [Refereed Article]

Copyright Statement

Copyright 2015 Elsevier Ltd.

DOI: doi:10.1016/j.toxicon.2015.02.013

Abstract

Myrmecia pilosula is an endemic Australian ant whose sting is a frequent cause of insect allergy in southeast Australia, and several deaths due to M. pilosula sting envenomation have been documented. In this review, we discuss the composition and bioactivity of M. pilosula venom. In addition to various enzymes and pharmacologically active constituents, the venom contains four families of highly basic low molecular weight peptides trivially named Pilosulins. These peptides are unique and have low structural homology to other Hymenoptera venom peptides. Moreover, M. pilosula venom is relatively simple in its composition with 5 predominant peptides making up about 90% by weight. These peptides display cytotoxic, hypotensive, histamine-releasing and antimicrobial activities. Within the M. pilosula venom, Pilosulin 3 has been classified as a major allergen and [Ile5]pilosulin 1 and Pilosulin 4.1 are classified as minor allergens. Several uncharacterised higher molecular weight components with allergenic activities have also been identified. The revised naming of M. pilosula venom peptides according to the International Union of Immunological Societies (IUIS) criteria for allergen nomenclature is discussed in this review.

Item Details

Item Type:Refereed Article
Keywords:ant venom, Myrmecia pilosula, pilosulin, Myr p, allergens
Research Division:Chemical Sciences
Research Group:Medicinal and Biomolecular Chemistry
Research Field:Proteins and Peptides
Objective Division:Health
Objective Group:Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:Immune System and Allergy
Author:Wanandy, T (Mr Troy Wanandy)
Author:Guven, N (Dr Nuri Guven)
Author:Davies, NW (Associate Professor Noel Davies)
ID Code:100196
Year Published:2015
Web of Science® Times Cited:9
Deposited By:Medicine (Discipline)
Deposited On:2015-05-07
Last Modified:2016-05-16
Downloads:0

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