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Normal host cells are protected from the destructive action of complement by cell surface complement regulatory proteins. In humans, decay-accelerating factor (DAF) and membrane cofactor protein (MCP) play such a biologic role by inhibiting C3 and C5 convertases. DAF and MCP accomplish this task by specific mechanisms designated decay-accelerating activity(More)
Involvement of additional hormones other than estrogen in the control of vitellogenin (Vg) synthesis has been suggested in fish. However, no satisfactory explanation on the mechanism of the action of these hormones has been reported. In this study, we have exploited the possibility of androgen receptor mediation during the androgen action on the pathway of(More)
Severe acute respiratory syndrome (SARS) is caused by the SARS coronavirus (CoV). The spike protein of SARS-CoV consists of S1 and S2 domains, which are responsible for virus binding and fusion, respectively. The receptor-binding domain (RBD) positioned in S1 can specifically bind to angiotensin-converting enzyme 2 (ACE2) on target cells, and ACE2 regulates(More)
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