Abstract: 1.: Positive and negative regulation of RNA polymerase II transcription. 2.: Histones and trascriptional control. 3.: CREM: a bZip transcription factor central to the cAMP nuclear response. 4.: Regulation of Rel transcription complexes. 5.: Multifactorial and combinatorial models for specific transcriptional regulation. 6.: The function of homeodomain proteins in Drosophila development. 7.: Transcriptional regulation of skeletal myogenesis. 8.: . 9.: Control of transcriptional elongation by the human immunodeficiency virus Tat protein