the suppressor t cells that adhere to the insolubilized conjugates of histamine-albumin ( called histamine-rabbit serum albumin-sepharose , or hrs ) are ia positive , they appear to have receptors for histamine , beta adrenergic amines and prostaglandins of the e series , and when stimulated by these agents their in vivo and in vitro suppressor actions are reversed .
C0001924
albumin
C0036773
serum albumin