The "full-house" immunofluorescence pattern is characterized by the presence of IgG, IgM, and IgA, and C3 and C1q deposits, which occurs mostly in lupus nephritis (71%), with a sensitivity of 71%, specificity of 90%, positive predictive value of 79%, and negative predictive value of 85%28. The gene discussed is C3; the disease is lupus nephritis.