The transparent accessory reproductive gland secretes a polypeptide into the hemolymph of male Rhodnius prolixus

V.L. Sevala, K.G. Davey
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引用次数: 11

Abstract

The transparent accessory reproductive gland of Rhodnius prolixus synthesizes and accumulates a variety of polypeptides. Ouchterlony immunodiffusion demonstrates that the hemolymph contains proteins which react with polyclonal antibodies against extracts of transparent accessory glands. Accessory glands and hemolymph contain a 170 kDa polypeptide with similar mobility on SDS-polyacrylamide gel electrophoresis. This polypeptide reacts with antibodies against extracts of accessory glands. Surgical removal of the accessory glands prevents the appearance of the 170 kDa polypeptide in the hemolymph. In vivo labeling of accessory gland proteins with a mixture of [14C]amino acids demonstrates that the newly synthesized TARG polypeptide appears in the hemolymph between days 2 and 3 after feeding. It is concluded that a specific polypeptide which is synthesized in the transparent accessory gland is exported to the hemolymph.

透明的副生殖腺分泌一种多肽到雄性长尾罗德斯的血淋巴中
长尾Rhodnius prolixus透明副生殖腺合成并积累多种多肽。免疫扩散表明,血淋巴中含有与透明副腺提取物多克隆抗体反应的蛋白。副腺体和血淋巴含有170 kDa的多肽,sds -聚丙烯酰胺凝胶电泳显示其迁移率相似。这种多肽与抗副腺提取物的抗体反应。手术切除副腺可防止在血淋巴中出现170 kDa多肽。用[14C]氨基酸混合物在体内标记副腺蛋白表明,新合成的TARG多肽在饲喂后第2天至第3天出现在血淋巴中。结论是在透明副腺中合成的一种特殊多肽输出到血淋巴。
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