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Description
For the S2 subunit, peptides derived from HR1 or HR2 of the S2 subunit from SARS-CoV, MERS-CoV and SARS-CoV-2 have been described that inhibit viral fusion with target cells and thereby prevent virus infection

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Published studies have reported plasma GHK-Cu levels of approximately 200 ng/mL at age 20, declining to approximately 80 ng/mL by age 60

Schilling et al., Cancer-Germline Antigen expression discriminates clinical outcome to CTLA-4 blockade
