DNA Bending by the Chromosomal Protein HMG1 and Its High Mobility Group Box Domains
نویسندگان
چکیده
منابع مشابه
The role of intercalating residues in chromosomal high-mobility-group protein DNA binding, bending and specificity.
Ubiquitous high-mobility-group (HMGB) chromosomal proteins bind DNA in a non-sequence- specific fashion to promote chromatin function and gene regulation. Minor groove DNA binding of the HMG domain induces substantial DNA bending toward the major groove, and several interfacial residues contribute by DNA intercalation. The role of the intercalating residues in DNA binding, bending and specifici...
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The high mobility group (HMG) proteins are the major nonhistone components of chromatin (1). Among these, the HMG1 and HMG2 proteins are the most abundant; however, their precise function remains undefined. There are some indications for a putative role of HMG 1/2 in chromatin assembly (2), DNA replication (3) or even as general transcription factors for RNA polymerase II (4). There is a consid...
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ABF2 (ARS-binding factor 2), a small, basic DNA-binding protein that binds specifically to the autonomously replicating sequence ARS1, is located primarily in the mitochondria of the yeast Saccharomyces cerevisiae. The abundance of ABF2 and the phenotype of abf2- null mutants argue that this protein plays a key role in the structure, maintenance, and expression of the yeast mitochondrial genome...
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We have generated a set of alanine-scanning substitutions in high-mobility-group protein 1 box B (HMG1-B; the second domain of the HMG1 nuclear protein from the rat) in order to explore the influence of specific surface side chains on its function and folding. Guanidine hydrochloride and thermal unfolding studies have been carried out to investigate the effect of substituted residues on the fol...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1998
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)44746-1