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Summary. Binding of human placental [125I]lactogen to homogenates of the buffalo CL was studied. Differential centrifugation studies revealed the existence of hormone-binding components in fractions of the CL homogenate sedimenting at 800 g, 10,000 g and 100,000 g. The binding was affected by incubation time and hormone concentration. The hormone-binding components were heat-labile and susceptible to proteolytic enzymes.
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Moodbidri et al. (1973) studied this question.
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