preferred_name: CD28 homodimer binds B7-1 homodimer (Homo sapiens)
preferred_name_lc: cd28 homodimer binds b7-1 homodimer (homo sapiens)
label: CD28 homodimer binds B7-1 homodimer (Homo sapiens)
label_lc: cd28 homodimer binds b7-1 homodimer (homo sapiens)