HTT1 Antibody

Shipped with Ice Packs
In Stock

Description

Definition and Target Specificity

The MW1 antibody (DSHB catalog ID: MW1), developed against the huntingtin protein, specifically recognizes expanded polyQ repeats in mutant HTT. These repeats are pathogenic hallmarks of Huntington’s disease and related polyglutamine disorders .

  • Epitope: Binds to the N-terminal region of HTT, conformational specificity for elongated polyQ tracts (≥20 repeats) .

  • Isotype: Mouse IgG2b .

Detection of Mutant HTT

  • MW1 is critical for identifying soluble mutant HTT in cellular and animal models. Its ability to distinguish expanded polyQ tracts enables quantification of pathogenic HTT levels .

  • Used in time-resolved Förster resonance energy transfer (TR-FRET) assays to monitor HTT aggregation dynamics .

Therapeutic Insights

  • Studies suggest MW1’s epitope accessibility decreases as polyQ aggregates mature, highlighting challenges in targeting late-stage aggregates .

  • Preclinical models using MW1 have informed therapeutic strategies aimed at clearing toxic HTT species .

Limitations and Considerations

  • Epitope Masking: MW1’s binding is reduced in dense aggregates, necessitating complementary antibodies for full pathological characterization .

  • Species Specificity: Primarily validated in human systems; cross-reactivity with non-primate models requires further validation .

Product Specs

Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M Phosphate Buffered Saline (PBS), pH 7.4
Form
Liquid
Lead Time
Made-to-order (14-16 weeks)
Synonyms
HTT1 antibody; At4g29770 antibody; F27B13.10 antibody; Protein HEAT-INDUCED TAS1 TARGET 1 antibody
Target Names
HTT1
Uniprot No.

Target Background

Function
This antibody mediates both basal and acquired thermotolerance through pathways directed by Heat Shock Factor 1 (HSFA1) proteins, specifically HSFA1A, HSFA1B, and HSFA1D. It triggers the expression of HSFA1A and HSFA1B.
Database Links

KEGG: ath:AT4G29770

STRING: 3702.AT4G29770.2

UniGene: At.31889

Protein Families
Heat induced plant HTT protein family
Subcellular Location
Cytoplasm. Nucleus.
Tissue Specificity
Expressed ubiquitously, including in seedlings, leaves, stems, inflorescences and siliques.

Q&A

Here’s a structured collection of FAQs tailored for researchers working with HTT1 antibodies, organized by complexity and grounded in methodological rigor:

Advanced Research Questions

How to resolve conflicting HTT1 localization data across studies?

  • Strategies:

    • Assay cross-validation: Compare IHC, immunofluorescence, and subcellular fractionation + immunoblotting .

    • Epitope mapping: Confirm the antibody’s target region (e.g., N-terminal vs. C-terminal epitopes) using truncation mutants .

    • Context-dependent validation: Assess tissue-specific post-translational modifications affecting antibody binding .

How to design HTT1 antibody-based multiplex assays?

  • Considerations:

    • Host species compatibility: Use HTT1 antibodies raised in species distinct from other targets (e.g., rabbit HTT1 + mouse β-actin) .

    • Cross-reactivity screening: Pre-adsorb antibodies against off-target proteins in the panel .

    • Signal separation: Employ fluorophores/HRP substrates with non-overlapping emission spectra .

What computational tools aid in HTT1 antibody validation?

  • Resources:

    • BLAST alignment: Verify immunogen sequence homology to avoid cross-reactivity with paralogs .

    • Protein Atlas (HPA): Cross-reference expression patterns with public IHC datasets .

    • Phosphosite databases: Check for phosphorylation states that may block epitope access .

Data Contradiction Analysis

How to troubleshoot inconsistent HTT1 quantification in immunoblots?

  • Root causes:

    • Post-translational modifications: Deglycosylate lysates if HTT1 is glycosylated .

    • Proteolytic degradation: Include fresh protease inhibitors and validate lysate quality .

    • Batch variability: Use recombinant monoclonal HTT1 antibodies to minimize lot-to-lot differences .

Why does HTT1 antibody performance vary between fresh and archived samples?

  • Mitigation:

    • Antigen retrieval: Optimize heat-mediated or enzymatic retrieval for FFPE tissues .

    • Fixation artifacts: Limit formalin exposure time to prevent over-crosslinking .

Methodological Best Practices

How to standardize HTT1 antibody protocols across labs?

  • Steps:

    • Detailed documentation: Share exact fixation, blocking, and imaging parameters .

    • Reference standards: Include a common reference sample (e.g., recombinant HTT1) in all experiments .

    • Blinded analysis: Eliminate observer bias in signal interpretation .

What criteria define HTT1 antibody validation for peer-reviewed publication?

  • Requirements:

    • Target specificity: Data from knockout models or siRNA knockdown .

    • Application-specific validation: Demonstrate functionality in stated techniques (e.g., ChIP, flow cytometry) .

    • Reagent transparency: Disclose clone ID, host species, and immunogen sequence .

Quick Inquiry

Personal Email Detected
Please use an institutional or corporate email address for inquiries. Personal email accounts ( such as Gmail, Yahoo, and Outlook) are not accepted. *
© Copyright 2025 TheBiotek. All Rights Reserved.