Structures and properties of vitellin isolated from Triatominae species

¹Instituto Nacional de Diagnóstico e Investigación de la Enfermedad de Chagas Dr M. Fatala Chaben, Buenos Aires, Argentina.

Acta Physiologica, Pharmacologica Et Therapeutica Latinoamericana : Organo De La Asociacion Latinoamericana De Ciencias Fisiologicas Y [De] La Asociacion Latinoamericana De Farmacologia

|January 1, 1991

Abstract:

A comparative study was conducted on the molecular weight, chemical composition, and immunological identity of vitellin (VN) from Triatominae species. VN is a lipoglycophosprotein: 12.76% carbohydrates, 12.53% lipids, and 0.6% phosphorus of the protein mass. Native VN shows one band of 310 kDa by gel filtration. VN shows a main band of 175 kDa by SDS-PAGE coincident with a vitellogenin (VG) band. Amino acid composition was very similar in the four species tested: T.infestans, T.pallidipennis, R.prolixus and D.maximus. T.infestans VN-VG has a total immunological identity with D.maximus female haemolymph and egg homogenates.

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Abstract:

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