Chromatin unfolding and activation by HMGN(*) chromosomal proteins.
The high mobility group N (HMGN) proteins are a family of nuclear proteins that binds to nucleosomes, changes the architecture of chromatin, and enhances transcription and replication from chromatin templates. The intracellular organization of the HMGN (previously known as HMG-14/17) proteins is dynamic and is related to both cell-cycle and transcriptional events. These proteins roam the nucleus, perhaps as part of multiprotein complexes, and their target interactions are modulated by posttranslational modifications. Functional studies on HMGN proteins provide insights into the molecular mechanisms by which structural proteins affect DNA-dependent activities in the context of chromatin.
Bustin
M
M
Protein Section, Laboratory of Metabolism, Division of Basic Sciences, National Cancer Institute, National Institutes of Health, 20892, Bethesda, MD, USA. bustin@helix.nih.gov
D000595:Amino Acid Sequence; D000818:Animals; D002467:Cell Nucleus / Q000737:chemistry; D002843:Chromatin / Q000737:chemistry* / Q000378:metabolism*; D002875:Chromosomes / Q000737:chemistry*; D004247:DNA / Q000378:metabolism; D004058:Diffusion; D006609:High Mobility Group Proteins / Q000737:chemistry*; D006801:Humans; D008969:Molecular Sequence Data; D009707:Nucleosomes / Q000737:chemistry; D011485:Protein Binding; D017434:Protein Structure, Tertiary; D017386:Sequence Homology, Amino Acid; D014158:Transcription, Genetic
D002843:Chromatin; D006609:High Mobility Group Proteins; D009707:Nucleosomes; D004247:DNA