Taken together, we conclude from these results that protein structure, protein conformational flexibility, and DNA flexibility induced by non-specific protein-DNA interactions such as those with HU, all contribute significantly to the formation of small DNA loops widely observed in vivo.
The ProteinDNAInteraction class contains specific attributes that reflect the unique aspects of protein-DNA interactions, such as protein (TF) binding sites in the regulatory regions of the target genes.
Protein-DNA interactions such as the binding between a transcription factor and its target gene have been studied for many years.
Chromatin immunoprecipitation (ChIP) followed by microarray hybridization (ChIP-chip) or high-throughput sequencing (ChIP-seq) allows genome-wide discovery of protein-DNA interactions such as transcription factor bindings and histone modifications.
It has been accepted that as a mechanism of inhibition or arrest of synthesis of DNA, other interactions, such as between DNA and proteins, including DNA polymerase at replication fork site may be also involved.
The band-shift assay is an extremely sensitive technique that is particularly suited to study high-affinity DNA-protein interactions such as HMGB1 binding to hcDNA [21], [22].
Although studies of the target search of proteins for their specific binding sites on the DNA have revealed design principles for the quantitative characteristics of protein-DNA interactions, no such principles are known for the cooperative interactions between DNA-binding proteins.
Various types of molecular interactions, such as protein-DNA, DNA-RNA, protein-RNA, RNA-RNA, and protein-protein interactions (PPI) play crucial roles in mediating numerous biological processes and endow the multifunctionality of a single protein.
This may also indicate that there are other interactions, such as between DNA and proteins, including DNA polymerase, at replication fork site that may be also involved.
Categories can be formed using profilers for relevant interactions such as DNA or oestrogen receptor binding [ 15].
