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Biochemistry. 1978 Nov 28;17(24):5165-74.

Protein allergens of white-faced hornet, yellow hornet, and yellow jacket venoms.

Abstract

White-faced hornet, yellow hornet, and yellow jacket venoms have very similar protein compositions; each contains mainly three basic proteins. Two of these proteins have hyaluronidase and phospholipase activities and the third one, designated as antigen 5, is of as yet unidentified biochemical function. These three proteins have molecular weights of about 45 000, 35 000, and 25 000, respectively. The three proteins of white-faced hornet venom have been purified to near homogeneity, while this is the case only for antigen 5 of yellow hornet and yellow jacket venoms. Strong antigenic cross-reaction of the hyaluronidase from these three vespid venoms was observed using specific rabbit anti-venom sera, while weak cross-reactions of phospholipases and of antigen 5s were observed. All three proteins are active as allergens to varying degrees in vespid sensitive individuals. With each vespid venom its antigen 5 seems to be the major allergen. The results help to clarify the commonly observed varying degrees of multiple sensitivity of people to different vespids.

PMID:
83154
[PubMed - indexed for MEDLINE]
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