Cell division protein kinase 9(Involved in 9 processes: Elongation arrest and recovery; Gene Expression; HIV Infection; HIV-1 elongation arrest and recovery; Pausing and recovery of HIV-1 elongation; Pausing and recovery of Tat-mediated HIV-1 elongation; Pausing and recovery of elongation; Tat-mediated HIV-1 elongation arrest and recovery; Transcription). The gene discussed is CDK9; the disease is HIV infectious disease.