[Thaumetopoein, an urticating protein of the processionary hairs of the caterpillar (Thaumetopoea pityocampa Schiff) (Lepidoptera, Thaumetopoeidae)].
The irritating fraction extracted from processionary caterpillar hairs contains soluble proteins which were separated by various electrophoretic and immuno-electrophoretic techniques. Some of these proteins are present also in cuticle and haemolymph. One protein of 28,000 daltons, formed of two subunits (13,000 and 15,000 daltons) is hair specific and causes a reaction in pig skin identical to that produced by hair extract. It is therefore an urticating protein and which we have named "Thaumetopoein".
D000818:Animals; D004591:Electrophoresis, Polyacrylamide Gel; D006458:Hemolymph / Q000032:analysis; D006801:Humans; D007106:Immune Sera; D007122:Immunoelectrophoresis; D019476:Insect Proteins; D007915:Lepidoptera; D008970:Molecular Weight; D011506:Proteins / Q000302:isolation & purification* / Q000633:toxicity; D014581:Urticaria / Q000139:chemically induced*
D007106:Immune Sera; D019476:Insect Proteins; D011506:Proteins; C047449:thaumetopoein protein, insect
La thaumétopoéine, une protéine urticante de la Chenille processionnaire du pin (Thaumetopoea pityocampa Schiff) (Lépidoptères, Thaumetopoeidae).