Immunohistochemistry: SOX-10 (+), S-100 (+), Red-KI-67 (7%), Ki-67 (+), Melan-A (A103) (+), Melanoma (HMB45) (+), Red-Melan A (+), Red-Melanoma (+), CK (pan) (-), EMA (-), GFAP (-). The gene discussed is MKI67; the disease is melanoma.