Gel Electrophoretic Separation of Pineal Gland Proteins of the Iropical Rodent Funambulus pennantii

S. Arora, R. Sarkar, C. Haldar
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Abstract

The investigation of pineal-specific proteins is not new but offers scope for identification of antigonadotropic compound(s). There is difference in the activities of the reproductively active and inactive phase pineal homogenates of seasonally breeding animals, e.g., squirrels. The present study aimed at checking the squirrel pineal proteins adopting gel-electrophoresis technique. Homogenate of the reproductively quiescent phase pineal homogenate separated into 14 fractions whereas that of reproductively active phase pineal presented 17 protein fractions (3 additional fractions). It is assumed that these three protein bands (which were not noted for the squirrel in reproductively inactive phase) are responsible for the antigonadal/ antigonadotropic effect of the pineal gland. The present study, though very preliminary in nature, has brought out the difference in the pattern of proteins of two different phases of the pineal gland- reproductively active and quiescent. The data throw open scope for extensive biochemical studies to decipher the physical and chemical nature and the properties of an anti-gonadotropic protein.
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热带啮齿动物松果体蛋白的凝胶电泳分离
松果体特异性蛋白的研究并不新鲜,但为鉴定抗促性腺激素化合物提供了范围。季节性繁殖动物(如松鼠)的松果体均质在繁殖活跃期和不活跃期的活动存在差异。本研究采用凝胶电泳技术对松鼠松果体蛋白进行检测。松果体繁殖静止期的匀浆分为14个部分,而松果体繁殖活跃期的匀浆有17个蛋白质部分(另外3个部分)。假设这三个蛋白带(松鼠在繁殖不活跃期没有发现)是松果体抗性腺/抗促性腺作用的原因。目前的研究,虽然是非常初步的性质,但已经揭示了松果体两个不同阶段-生殖活跃和静止的蛋白质模式的差异。这些数据为广泛的生化研究提供了空间,以破译抗促性腺激素蛋白的物理和化学性质和特性。
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