A Membrane Bounded Organelle of Eukaryotic Cells in Which Chromosomes Are Housed and Replicated. in Most Cells the Nucleus Contains All of the Cell's Chromosomes Except the Organellar Chromosomes and Is the Site of RNA Synthesis and Processing. in Some Species or in Specialized Cell Types RNA Metabolism or DNA Replication May Be Absent.
Transcription Regulatory Region Sequence Specific DNA Binding
Interacting Selectively and Non Covalently with a Specific Sequence of DNA That Is Part of a Regulatory Region That Controls Transcription of That Section of the Dna. the Transcribed Region Might Be Described As a Gene Cistron or Operon.
Sequence Specific DNA Binding Transcription Factor Activity
Interacting Selectively and Non Covalently with a Specific DNA Sequence in Order to Modulate Transcription. the Transcription Factor May or May Not Also Interact Selectively with a Protein or Macromolecular Complex.
Interacting Selectively and Non Covalently with DNA of a Specific Nucleotide Composition E.g. Gc Rich DNA Binding or with a Specific Sequence Motif or Type of DNA E.g. Promotor Binding or Rdna Binding.