Laboratory investigations revealed lymphopaenia (0.2 × 109 cells/L), thrombocytopaenia (128 × 109 cells/L), anaemia (haemoglobin 105 g/L), an acute kidney injury (creatinine 129 μmol (89% increase from baseline)), and an acute phase response (C-reactive protein (CRP) 309 mg/L and erythrocyte sedimentation rate (ESR) 39 mm/h). The gene discussed is CRP; the disease is Thrombocytopenia.