The Aspergillus nidulans transcription factor AlcR is shown by NMR and gel retardation assay to form a stable complex with oligonucleotide sequences comprising the consensus half-site 5'-TGCGG-3'. Apparent microM dissociation constants are evaluated by both methods. The measured lifetime of the complex is 74+/-7 ms at 20 degrees C with the following DNA sequence: 5'-C1G2T3G4C5G6G7A8T9C10-3'. The major chemical shift variations upon binding involve both the two adjacent GC pairs (G6 and G7) and, clearly, the AT pairs at both ends of the consensus sequence (T3 and A8), suggesting additional contacts of the protein with the DNA. This extensive and strong interaction with the half-site is another example of the variability in contacts of the fungal DNA-binding proteins containing Zn2Cys6 domains with their consensus sites. It is the first demonstration that a binuclear cluster protein can bind to DNA as a monomer with strong affinity.
Intra- and intermolecular translocation of the bi-domain transcription factor Oct1 characterized by liquid crystal and paramagnetic NMR.
Intra- and intermolecular translocation of the bi-domain transcription factor Oct1 characterized by liquid crystal and paramagnetic NMR.
Intra- and intermolecular translocation of the bi-domain transcription factor Oct1 characterized by liquid crystal and paramagnetic NMR.
Proc Natl Acad Sci U S A. 2011 May 31;108(22):E169-76
Authors: Takayama Y, Clore GM
Abstract
The intra- and intermolecular translocation processes whereby the bi-domain transcription factor Oct1 searches for its specific DNA target site have been investigated by...
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Intra- and intermolecular translocation of the bi-domain transcription factor Oct1 characterized by liquid crystal and paramagnetic NMR [Biophysics and Computational Biology]
Intra- and intermolecular translocation of the bi-domain transcription factor Oct1 characterized by liquid crystal and paramagnetic NMR
Takayama, Y., Clore, G. M....
Date: 2011-05-31
The intra- and intermolecular translocation processes whereby the bi-domain transcription factor Oct1 searches for its specific DNA target site have been investigated by residual dipolar coupling (RDC) and paramagnetic relaxation enhancement (PRE) measurements. The RDC data show that the orientation of the POUS and POUHD domains of Oct1 relative to the long axis of the DNA is the same for specific and...
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05-31-2011 11:41 PM
[NMR paper] Mechanisms for the enhanced thermal stability of a mutant of transcription factor 1 a
Mechanisms for the enhanced thermal stability of a mutant of transcription factor 1 as explained by (1)H, (15)N and (13)C NMR chemical shifts and secondary structure analysis.
Related Articles Mechanisms for the enhanced thermal stability of a mutant of transcription factor 1 as explained by (1)H, (15)N and (13)C NMR chemical shifts and secondary structure analysis.
Biochim Biophys Acta. 2000 Mar 16;1478(1):113-24
Authors: Vu HM, Liu W, Grove A, Geiduschek EP, Kearns DR
A variant of the bacteriophage SPO1-encoded transcription factor 1 (TF1)...
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11-18-2010 09:15 PM
[NMR paper] NMR solution structure of AlcR (1-60) provides insight in the unusual DNA binding pro
NMR solution structure of AlcR (1-60) provides insight in the unusual DNA binding properties of this zinc binuclear cluster protein.
Related Articles NMR solution structure of AlcR (1-60) provides insight in the unusual DNA binding properties of this zinc binuclear cluster protein.
J Mol Biol. 2000 Jan 28;295(4):729-36
Authors: Cerdan R, Cahuzac B, Félenbok B, Guittet E
The three-dimensional structure of the DNA-binding domain (residues 1-60) of the ethanol regulon transcription factor AlcR from Aspergillus nidulans has been solved by NMR....
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[NMR paper] New perceptions of transcription factor properties from NMR.
New perceptions of transcription factor properties from NMR.
Related Articles New perceptions of transcription factor properties from NMR.
Biochem Cell Biol. 1998;76(2-3):368-78
Authors: Bagby S, Arrowsmith CH, Ikura M
The complementarity of NMR and X-ray crystallography for biomacromolecular studies has been particularly evident in analysis of transcription factor structures and interactions. While X-ray crystallography can be used to tackle relatively complicated structural problems including multicomponent (three and higher) complexes, NMR...
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11-17-2010 11:06 PM
[NMR paper] The Aspergillus nidulans transcription factor AlcR forms a stable complex with its ha
The Aspergillus nidulans transcription factor AlcR forms a stable complex with its half-site DNA: a NMR study.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles The Aspergillus nidulans transcription factor AlcR forms a stable complex with its half-site DNA: a NMR study.
FEBS Lett. 1997 May 19;408(2):235-40
Authors: Cerdan R, Collin D, Lenouvel F, Felenbok B, Guittet E
The Aspergillus nidulans transcription factor AlcR is shown by NMR and gel retardation assay to form a...
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[NMR paper] Yeast heat shock transcription factor N-terminal activation domains are unstructured
Yeast heat shock transcription factor N-terminal activation domains are unstructured as probed by heteronuclear NMR spectroscopy.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www3.interscience.wiley.com-aboutus-images-wiley_interscience_pubmed_logo_FREE_120x27.gif http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles Yeast heat shock transcription factor N-terminal activation domains are unstructured as probed by heteronuclear NMR spectroscopy.
Protein Sci. 1996 Feb;5(2):262-9...
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[NMR paper] A 1H-NMR study of the transcription factor 1 from Bacillus subtilis phage SPO1 by sel
A 1H-NMR study of the transcription factor 1 from Bacillus subtilis phage SPO1 by selective 2H-labeling. Complete assignment and structural analysis of the aromatic resonances for a 22-kDa homodimer.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www3.interscience.wiley.com-aboutus-images-wiley_interscience_pubmed_logo_FREE_120x27.gif Related Articles A 1H-NMR study of the transcription factor 1 from Bacillus subtilis phage SPO1 by selective 2H-labeling. Complete assignment and structural analysis of the aromatic resonances for a 22-kDa homodimer.
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