Dna Binding Domain
Dna Binding Domain - Related Videos
13:21
Comprehensive DNA Methylation Analysis Using a Methyl-CpG-binding Domain Capture-based Method in Chronic Lymphocytic Leukemia Patients
0 Views •
Cited by 2 •
2017
This work describes an optimized methyl-CpG-binding domain (MBD) sequencing protocol and a computational pipeline to identify differentially methylated CpG-rich regions in chronic lymphocytic leukemia (CLL) patients.
12:27
Polyelectrolyte Complex for Heparin Binding Domain Osteogenic Growth Factor Delivery
0 Views •
Cited by 2 •
2016
Self-assembled polyelectrolyte complexes (PEC) fabricated from heparin and protamine were deposited on alginate beads to entrap and regulate the release of osteogenic growth factors. This delivery strategy enables a 20-fold reduction of BMP-2 dose in spinal fusion applications. This article illustrates the benefits and fabrication of PECs.
08:40
Methyl-binding DNA capture Sequencing for Patient Tissues
0 Views •
Cited by 1 •
2016
Here we present a protocol to investigate genome wide DNA methylation in large scale clinical patient screening studies using the Methyl-Binding DNA Capture sequencing (MBDCap-seq or MBD-seq) technology and the subsequent bioinformatics analysis pipeline.
08:51
Visualization of Surface-tethered Large DNA Molecules with a Fluorescent Protein DNA Binding Peptide
0 Views •
Cited by 7 •
2016
We present an approach for visualizing fluorescent protein DNA binding peptide (FP-DBP)-stained large DNA molecules tethered on the polyethylene glycol (PEG) and avidin-coated glass surface and stretched with microfluidic shear flows.
05:00
Fluorescence Anisotropy to Determine Transcription Factor-DNA Binding Affinity
0 Views •
2025
This video describes high-performance fluorescence anisotropy that helps to monitor the interaction between transcription factors and DNA. The assay monitors the interactions of a fluorophore-labeled DNA molecule with its specific transcription factor by measuring the degree of polarization due to molecular rotation or anisotropy of the fluorophore-labeled DNA.
FAQs
Recognition depends on a combination of molecular contacts rather than a single interaction. Amino acids within the domain can form hydrogen bonds with exposed DNA bases in the major or minor groove, while other contacts help position the protein along the DNA. This combination allows a protein to distinguish particular sequences or structural features relevant to its biological role.
The major and minor grooves expose different chemical patterns on the DNA surface, so the contacted groove influences which molecular features a protein can recognize. Contacts with exposed bases can support sequence-related recognition, whereas interactions with the DNA backbone help maintain attachment. Groove preference therefore contributes to how a protein identifies and engages its target.
Charged amino acids can interact electrostatically with the negatively charged phosphate backbone of DNA. These attractions help stabilize the protein-DNA association and complement more selective hydrogen-bond contacts with exposed bases. Because backbone interactions support attachment while base contacts contribute to recognition, both types of interaction can work together during binding.
Within a transcription factor, the domain can help position the protein at a regulatory DNA site, after which the transcription factor may recruit transcriptional machinery or block its access. The resulting effect is altered gene expression rather than a change to the underlying sequence. This provides a mechanism for controlling when genetic information is used.
Their importance extends beyond transcriptional regulation. DNA-binding domains also support proteins involved in DNA replication, repair, and chromosome organization by enabling those proteins to associate with DNA or recognize relevant DNA features. Studying these domains therefore connects molecular binding behavior with several processes that preserve, copy, arrange, and regulate genetic information.
Understanding how these domains recognize DNA can help researchers examine or design proteins that influence genetic information. Such work is relevant to engineered proteins in biotechnology and to therapeutic research focused on controlling gene-related processes. The key scientific value is linking structural recognition, DNA association, and downstream regulation in a form that can be investigated or adapted.