tacrolimus fujimycin, fk-506 immunosuppressant drug molecule. skeletal formula.

tacrolimus fujimycin fk506 immunosuppressant drug molecule skeletal formula immunosuppressive immune transplant organ allogeneic system rejection atopic dermatitis eczema uveitis vitiligo macrolide lactone streptomyces tsukubaensis interleukin2 interleukin fkbp12 transplantation ulcerative colitis dermatology ointment hydrogen carbon oxygen nitrogen atoms atomic molecular compound composition chemical chemistry structure line drawing flat icon