trd-1 Antibody
Product Specs
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Target Background
- Regulates cell fate in the developing germ line and epidermis PMID: 25493563
Q&A
Here’s a structured FAQ collection for researchers investigating the trd-1 Antibody in academic contexts, synthesized from peer-reviewed studies and technical protocols:
What is the functional role of TRD-1 in C. elegans cell fate determination?
TRD-1 regulates asymmetric cell division in seam cells, critical for maintaining tissue-specific lineages. RNAi knockdown of trd-1 reduces seam cell numbers from 16 (wild type) to 13 per side (p<0.01) and disrupts male tail sensory ray development (average 4 rays vs. 9 in controls) via posterior seam lineage defects .
Methodological Insight: Use RNAi knockdown paired with quantitative seam cell counts (e.g., fluorescence microscopy of seam-specific markers like wIs79). Validate with qPCR to confirm trd-1 suppression .
How do researchers validate antibody specificity for TRD-1 in C. elegans?
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Western Blot: Detect a ~46 kDa band in lysates from C. elegans strains (e.g., N2 wild type vs. trd-1(tm2764) mutants) .
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Phenotypic Rescue: Compare RNAi-treated animals to mutants; overlapping seam cell defects confirm antibody specificity .
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Cross-Reactivity Check: Test against homologs (e.g., mouse/human TTC27) to rule out off-target binding .
Why is C. elegans a preferred model for studying TRD-1?
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Conservation: TRD-1 shares homology with human/mouse TTC27 (E-values: 8e-99 and 1e-95) .
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Genetic Tractability: Easier RNAi screening and phenotypic analysis compared to vertebrate models .
How to resolve contradictions in TRD-1’s role across tissues?
Example Conflict: TRD-1 regulates seam cells and germline sex determination but shows tissue-specific interaction hierarchies (e.g., acts downstream of tra-2 but upstream of fem-3 in germline) .
Strategy:
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Tissue-specific RNAi or CRISPR-Cas9 knockouts.
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Transcriptomic profiling (e.g., RNA-seq) to identify context-dependent interactors.
What experimental designs address TRD-1’s partial functional redundancy?
Data Table: Genetic Interactions of trd-1 with Key Pathways :
| Pathway | Interaction | Phenotypic Outcome |
|---|---|---|
| Wnt signaling | Synergistic | Enhanced seam cell loss |
| Notch signaling | Antagonistic | Rescue of molting defects |
Method: Use double mutants or combinatorial RNAi to map epistatic relationships.
How to extend TRD-1 studies to mammalian systems?
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Homolog Targeting: Human TTC27 shares 42% amino acid identity with TRD-1 . Design cross-reactive antibodies using epitope mapping (e.g., phage display).
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Functional Assays: Test TTC27 knockdown in mammalian stem cells for asymmetric division defects.
Why does trd-1 RNAi produce variable penetrance in molting defects?
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Cause: Off-target RNAi effects or genetic background differences.
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Solution: Use multiple RNAi constructs and validate with trd-1(tm2764) mutants .
How to quantify TRD-1 antibody binding affinity?
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Surface Plasmon Resonance (SPR): Measure binding kinetics (e.g., K<sub>d</sub>) to recombinant TRD-1 protein .
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ELISA Optimization: Titrate antibody against purified TRD-1 (EC<sub>50</sub> = 0.5–1.0 µg/mL) .
How to reconcile TRD-1’s roles in apoptosis and proliferation?
Hypothesis: TRD-1 may act as a molecular scaffold, contextually recruiting pro-survival or pro-death effectors.
Validation: Co-IP/mass spectrometry to identify TRD-1 interactors under stress vs. homeostasis .
