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Identification of transcriptional regulatory regions and tracing their internal organization are important for understanding the eukaryotic cell machinery. Cis-regulatory modules (CRMs) of higher eukaryotes are believed to possess a regulatory 'grammar', or preferred arrangement of binding sites, that is crucial for proper regulation and thus tends to be… (More)
Here we analyzed an option to predict the structure of cis-regulatory modules that consist of binding sites of different proteins (heterogeneous cis-regulatory modules) using mutual positional correlations between protein-DNA binding experimental data and computationally identified clusters of binding sites for each of the proteins.
We have applied bioinformatic analysis of X-ray 3D structures of complexes of transcription factor NF-kappaB with DNAs. We determined the number of possible Van der Waals contacts and hydrogen bonds between amino acid residues and nucleotides. Conservative contacts in the NF-kappaB dimer-DNA complex composed of p50 and/or p65 NF-kappaB subunit and DNA… (More)
A discrepancy between the times of excitation transfer from B800 to B850 bacteriochlorophyll fractions in LH-2 complexes of purple bacteria was revealed. The experimental value (0.7-0.8 ps from literature sources) are at least four times lower than that (> 3.2 ps) calculated theoretically on the basis of recently obtained atomic structure of LH2. Possible… (More)