Gene Expression Regulation, Viral/physiology; Nuclear Receptor Coactivators/metabolism; Proto-Oncogene Proteins c-myc/metabolism; Proto-Oncogene Proteins/metabolism; Transcriptional Activation/physiology; tat Gene Products, Human Immunodeficiency Virus/metabolism; Adaptor Proteins, Signal Transducing/genetics; Adaptor Proteins, Signal Transducing/metabolism; Cyclin T/genetics; Cyclin T/metabolism; Cyclin-Dependent Kinase 9/antagonists & inhibitors; Cyclin-Dependent Kinase 9/metabolism; DNA Damage/physiology; DNA-Binding Proteins/genetics; DNA-Binding Proteins/metabolism; Flavonoids/pharmacology; Gene Expression Regulation, Viral/drug effects; Gene Expression Regulation, Viral/radiation effects; HIV Long Terminal Repeat/physiology; HeLa Cells; Histone-Lysine N-Methyltransferase; Histones/metabolism; Humans; Methylation; Myeloid-Lymphoid Leukemia Protein/genetics; Myeloid-Lymphoid Leukemia Protein/metabolism; Nuclear Proteins/genetics; Nuclear Proteins/metabolism; Nuclear Receptor Coactivators/genetics; Piperidines/pharmacology; Positive Transcriptional Elongation Factor B/antagonists & inhibitors; Positive Transcriptional Elongation Factor B/metabolism; Promoter Regions, Genetic/physiology; Protein Binding/physiology; Protein Interaction Domains and Motifs/physiology; Protein Kinase Inhibitors/pharmacology; Proto-Oncogene Proteins/genetics; Proto-Oncogene Proteins c-myc/genetics; RNA, Small Interfering/genetics; Transcription Factors/genetics; Transcription Factors/metabolism; Transcriptional Activation/drug effects; Transcriptional Activation/radiation effects; Ubiquitin-Protein Ligases/genetics; Ultraviolet Rays