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Biotin and Related Studies
Research Guide
What is Biotin and Related Studies?
Biotin and Related Studies is a research cluster centered on proximity-dependent protein labeling techniques such as BioID and TurboID, which employ biotin, streptavidin, and avidin-based systems to identify protein-protein interactions and map spatial proteomes in living cells.
This field includes 53,758 works focused on enzymatic tagging and proximity labeling for studying cellular interactomes and organelle-specific proteomes. Techniques leverage the strong avidin-biotin interaction for sensitive antigen localization in tissues, as shown in early immunoperoxidase methods. Growth data over the last 5 years is not available.
Topic Hierarchy
Research Sub-Topics
BioID Proximity-Dependent Biotin Identification
This sub-topic centers on the BirA* fusion-based BioID method for in vivo protein proximity labeling using biotinylation. Researchers optimize labeling efficiency, map interactomes of nuclear and cytoplasmic proteins, and validate novel interactions in human cells.
TurboID High-Efficiency Proximity Labeling
This sub-topic explores TurboID and miniTurboID, engineered BirA variants with rapid biotinylation kinetics for short-term labeling experiments. Researchers apply these tools to dynamic processes like mitosis and study organelle-specific proteomes.
Spatial Proteomic Mapping with Proximity Labeling
This sub-topic uses proximity labeling to chart proteome organization within organelles like mitochondria, ER, and nucleus. Researchers integrate mass spectrometry data to construct spatial interactomes and identify compartment-specific factors.
Streptavidin Enrichment in Proximity Labeling Workflows
This sub-topic focuses on streptavidin pulldown protocols, quantitative MS analysis, and computational filtering of biotinylated peptides from proximity labeling. Researchers develop high-throughput pipelines for interactome-scale datasets.
APEX Peroxidase-Based Proximity Labeling
This sub-topic investigates APEX, an engineered ascorbate peroxidase for proximity labeling with biotin-phenol in living cells. Researchers compare APEX with BioID for membrane and luminal proteins and apply it to super-resolution proximity mapping.
Why It Matters
Biotin and related studies enable mapping of protein-protein interactions essential for understanding cellular functions, with applications in identifying molecular complexes in large networks and comprehensive interactome analyses in organisms like Saccharomyces cerevisiae. For instance, Hsu et al. (1981) in "Use of avidin-biotin-peroxidase complex (ABC) in immunoperoxidase techniques: a comparison between ABC and unlabeled antibody (PAP) procedures" demonstrated the ABC method's superior sensitivity, achieving localization of antigens in formalin-fixed tissues with 14,230 citations reflecting its widespread adoption in histochemistry. These techniques support investigations into mitochondria and other organelles, aiding research in related areas such as cellular mechanics and calpain protease regulation.
Reading Guide
Where to Start
"Use of avidin-biotin-peroxidase complex (ABC) in immunoperoxidase techniques: a comparison between ABC and unlabeled antibody (PAP) procedures." by Hsu et al. (1981), as it introduces the foundational avidin-biotin sensitivity with 14,230 citations and clear comparison to other methods.
Key Papers Explained
Hsu et al. (1981) in "Use of avidin-biotin-peroxidase complex (ABC) in immunoperoxidase techniques: a comparison between ABC and unlabeled antibody (PAP) procedures" establishes avidin-biotin for sensitive labeling (14,230 citations), building toward network analyses like Bader and Hogue (2003) in "An automated method for finding molecular complexes in large protein interaction networks" (6,115 citations), which processes interaction data. Uetz et al. (2000) in "A comprehensive analysis of protein–protein interactions in Saccharomyces cerevisiae" (4,688 citations) and Ito et al. (2001) in "A comprehensive two-hybrid analysis to explore the yeast protein interactome" (3,562 citations) extend this to genome-scale interactomes, complementing proximity methods.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Current work emphasizes TurboID for faster proximity labeling in dynamic cellular contexts like mitochondria, though no preprints from the last 6 months or news from the last 12 months are available. Frontiers involve integrating BioID datasets with spatial proteomics for organelle interactomes.
Papers at a Glance
Frequently Asked Questions
What is the role of avidin-biotin interaction in protein labeling?
The avidin-biotin interaction provides a simple and sensitive method for localizing antigens in formalin-fixed tissues through biotin-labeled secondary antibodies followed by avidin-biotin-peroxidase complexes. Hsu et al. (1981) compared the ABC procedure to unlabeled antibody methods, showing enhanced staining sensitivity. This forms the basis for proximity labeling techniques like BioID.
How does BioID contribute to studying protein-protein interactions?
BioID uses biotin ligase for proximity-dependent labeling to identify protein interactomes in living cells. It maps spatial proteomes by enzymatic tagging with biotin, captured via streptavidin. The approach targets cellular interactomes and organelles like mitochondria.
What are key applications of biotin-based proximity labeling?
Biotin-based methods map protein-protein interactions and organelle-specific proteomes in living cells. They support analyses of cellular interactomes using techniques like TurboID for faster labeling. Applications extend to histochemical antigen detection with high sensitivity.
Why is streptavidin used in these studies?
Streptavidin binds biotin with high affinity, enabling efficient capture of labeled proteins in proximity labeling workflows. It is central to BioID and TurboID for pulling down interactors from cellular lysates. This system facilitates spatial proteomic mapping.
What is the current scope of biotin and related studies?
The field encompasses 53,758 papers on proximity labeling, enzymatic tagging, and protein interactions. Keywords include BioID, TurboID, mitochondria, and cellular interactome. No recent preprints or news coverage were reported in the last 12 months.
Open Research Questions
- ? How can TurboID labeling efficiency be optimized for low-abundance proteins in organelle-specific proteomes?
- ? What are the limitations of avidin-biotin systems in distinguishing transient versus stable protein-protein interactions?
- ? How do proximity labeling artifacts affect spatial proteome mapping accuracy in living cells?
- ? Which biotin ligase variants best capture interactomes in mitochondria under dynamic cellular conditions?
- ? How can BioID data integrate with yeast two-hybrid results for comprehensive interactome models?
Recent Trends
The field maintains 53,758 works with no specified 5-year growth rate; foundational papers like Hsu et al. on avidin-biotin-peroxidase complexes continue high citation impact at 14,230. No recent preprints or news coverage reported, indicating steady focus on established proximity labeling techniques such as BioID and TurboID for protein interactions.
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