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ATOH1 · Western blot design guide
Design a Western Blot for ATOH1
Real validated ATOH1 Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-ATOH1 WB antibodies. Everything you need to plan the experiment before you commit precious samples.
Last reviewed: May 2026 · Scientific review: Boster Bio technical team
ATOH1 Western Blot Experimental Design Guide
Expected bands, validated protocols, controls and antibodies — the at-a-glance facts below, then the full design guide.
Must know before running
| Expected band | ~38.2 kDa | |
| Observed band | ~38 kDa | |
| Gel | 10–12% | |
| Negative control | siRNA / KO lysate |
Important caveats
Reasons your observed band may differ from the expected size.
| PTM | — | |
| Caveat | Dimerization with bHLH partners | |
| Regulation | IFN-γ-induced | |
| Isoform | 1 isoform(s) |
Section 1
Real Curated ATOH1 Western Blot Protocols
Literature-validated Western blot parameters for ATOH1 — gel percentage, transfer, blocking, antibody incubation and detection, extracted from published methods.
| Sample / lysate | human HL-60 , Lane 2: rat PC-12 . After electrophoresis, proteins were transferred to a nitrocellulose membrane at 150 mA for 50-90 minutes. Blocked the membrane with 5% non-fat milk/TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-MATH1/HATH1/ATOH1 antigen affinity purified polyclonal antibody (Catalog # A02207-1) at 0.5 μg/mL overnight at 4°C, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit (Catalog # EK1002) with Tanon 5200 system. A specific band was detected for MATH1/HATH1/ATOH1 at approximately 38 kDa. The expected band size for MATH1/HATH1/ATOH1 is at 38 kDa |
| Gel % | 10–12% |
| Load | 30 ug |
| Transfer | nitrocellulose membrane, 150 mA, 50–90 min |
| Membrane | nitrocellulose |
| Blocking | 5% non-fat milk / TBS, 1.5 h RT |
| Primary antibody | 0.5 µg/mL |
| Primary incubation | overnight at 4 °C |
| Secondary antibody | goat anti-rabbit IgG-HRP, 1:5000 |
| Wash | TBS-0.1% Tween, 3 × 5 min |
| Detection | ECL |
| Exposure / imaging | Tanon 5200 |
| Observed band | 38 kDa |
Section 2
What Is the Expected ATOH1 Western Blot Band Size?
ATOH1 has a 38.2 kDa predicted backbone and runs at the matching ~38 kDa on blots, since it lacks glycosylation, disulfides, or cleavage that would shift its size.
| Single sharp band at ~38 kDa | matches the predicted 38.2 kDa unmodified ATOH1 backbone, indicating no covalent additions |
| No smear or laddering above the main band | consistent with the absence of any annotated glycosylation sites, so mass is not inflated by sugar modifications |
| No shift between reducing and non-reducing conditions | no disulfide bonds are annotated; dimerization with bHLH partners is non-covalent and does not survive SDS-PAGE denaturation |
| No smaller cleaved fragment below the main band | ATOH1 has no signal peptide or propeptide, so the full-length 38 kDa form is the only expected species |
| No extra bands at other apparent masses | only one isoform is annotated, so additional bands from alternative splicing are not expected |
| Signal strongest in nuclear-enriched fractions | ATOH1 is a nuclear transcription factor, so whole-cell lysates without adequate nuclear extraction may under-represent it |
💡Expected ATOH1 appearanceATOH1 runs as a single sharp band at ~38 kDa on reducing SDS-PAGE, matching its 38.2 kDa predicted mass, since it lacks glycosylation, disulfide bonds, or cleavage that would shift its apparent size.
| Predicted mass (38.2 kDa, 354 aa) | sets the unmodified backbone size, closely matching the ~38 kDa band observed on blots |
| Absence of glycosylation (0 sites annotated) | no sugar-driven mass increase or heterogeneous smearing is expected; band should stay sharp |
| Absence of disulfide bonds | no shift between reducing and non-reducing runs; the required dimerization with bHLH partners is non-covalent and dissociates under SDS-PAGE conditions |
| No signal peptide or propeptide | no smaller cleaved/mature fragment is generated; the full-length form is the only species expected |
| Single annotated isoform | no additional bands from alternative splicing; only one molecular species should appear |
| Situation | Likely cause | Next action |
|---|---|---|
| Weak or no signal | ATOH1 is a low-abundance nuclear transcription factor with restricted, developmentally regulated expression | use a nuclear-enriched lysis buffer, load more total protein, and include a known ATOH1-expressing tissue as a positive control |
| No band in lysate | the sampled cell line or tissue may not express ATOH1 given its narrow, neurogenic expression pattern | confirm the model actually expresses ATOH1 before concluding antibody failure, and run a validated positive control lysate alongside |
| Band higher than expected | incomplete denaturation can leave ATOH1 associated with its bHLH dimerization partner or other nuclear complex components | ensure full reduction and denaturation with fresh reducing agent, adequate SDS, and sufficient heating before loading |
| Multiple bands | since only one ATOH1 isoform is annotated, extra bands likely reflect antibody cross-reactivity with other bHLH family members | verify specificity using an ATOH1 knockdown/knockout lysate or a blocking peptide control |
| Broad smear instead of sharp band | not expected from glycosylation, but can arise from protein aggregation or degradation during nuclear extraction | keep samples cold, add fresh protease inhibitors, and use a lysis method that fully solubilizes nuclear protein without excessive shearing |
Experiment evidence
Western blot images showing ATOH1 band
A02207-1 · ATOH1
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for ATOH1 Western blot
🧪For positive controls for ATOH1 in Western blot, you can use lysate from a mammalian cell line (e.g., HEK293) transiently or stably overexpressing recombinant ATOH1, since no HPA tissue or cell line shows confirmed endogenous positive expression for this transcription factor.
Positive control: ATOH1-overexpressing HEK293 cells
Negative control: untransfected parental cell line, or ATOH1 siRNA knockdown/CRISPR knockout
Loading controls: Also probe for GAPDH and β-actin as loading controls, alongside a total-protein stain (stain-free gel, Ponceau S, or REVERT).
⚠️Feasibility: No HPA expression data exist for ATOH1, so a natural endogenous positive tissue cannot be confirmed; use an overexpression system for the positive control and a knockdown/knockout or untransfected line for the negative, and validate antibody specificity accordingly.
Comprehensive Human Protein Atlas IHC scoring per tissue. Rows are taken directly from the HPA tissue chart — click any row's HPA link to view the source.
Positive expression · recommended positive controls
| Tissue | Cell type | Level | Evidence | Source |
|---|
Undetected expression · recommended negative controls
| Tissue | Cell type | Level | Evidence | Source |
|---|
Section 3
Advanced ATOH1 Western Blot Tips
Deeper troubleshooting and optimisation questions for ATOH1, answered from its protein features.
Does the ATOH1 band match its predicted mass?
ATOH1 has a predicted mass of 38.2 kDa, and the observed band runs at approximately 38 kDa, a close match. No glycosylation, disulfide bonds, or annotated modified residues are listed for this protein, so minimal mass-shifting modification is expected. A band shifted more than a few kDa from 38 kDa likely reflects nonspecific antibody binding or protein degradation rather than a genuine ATOH1 modification.
Why does ATOH1 expression vary between samples?
ATOH1 is a developmental transcription factor driving neurogenesis and cell differentiation, so its expression is tightly restricted to specific progenitor populations and developmental windows rather than constitutive. Tissues or cell lines outside actively differentiating neural lineages may show little or no detectable ATOH1. Confirm your model system is undergoing ATOH1-dependent differentiation before treating a weak or absent signal as a technical failure.
Why is nuclear extraction important for ATOH1 detection?
ATOH1 is annotated as a nuclear DNA-binding transcription factor, so whole-cell lysates dilute its signal among abundant cytoplasmic proteins. Using a nuclear extraction or fractionation protocol concentrates ATOH1 relative to total protein, improving detection sensitivity and helping confirm the signal originates from the expected nuclear compartment rather than nonspecific cytoplasmic cross-reactivity.
How to optimize blocking for ATOH1 Western blot?
Because ATOH1 is a low-abundance nuclear transcription factor, use 5% non-fat milk or BSA blocking for 1 hour at room temperature to reduce background while preserving signal. Dilute antibody in the same blocking buffer, and avoid over-blocking, which can mask low-copy-number nuclear targets like this one.
What transfer method to use for ATOH1 Western blot?
ATOH1 is a small nuclear protein (~38 kDa), so standard wet or semi-dry transfer at 100V for 60-90 minutes is sufficient; small proteins transfer efficiently and do not require the extended times needed for high molecular weight targets. Use a PVDF membrane for reliable retention of this modest-sized transcription factor.
How to accurately quantitate ATOH1 by Western blot?
Since ATOH1 expression is developmentally regulated and confined to differentiating neural progenitor populations, normalize to a nuclear loading control and compare only samples matched for differentiation stage. Because ATOH1 requires dimerization with another bHLH protein for efficient DNA binding, monomer band intensity reflects total protein levels, not necessarily active dimer abundance.
Why does ATOH1 show bands above 38 kDa?
ATOH1 requires dimerization with another bHLH protein for efficient DNA binding, so incomplete denaturation or insufficient reducing conditions can leave residual dimer complexes migrating above the monomer. Ensure samples are fully denatured with SDS and reducing agent and adequately heated; persistent higher bands after these steps more likely indicate nonspecific antibody cross-reactivity.
Boster reagents
Best ATOH1 Western Blot Antibodies
BosterBio's ATOH1 antibodies are among the best-performing WB antibodies on the market — well cited, thoroughly validated, and orthogonally cross-validated against negative tissues and complementary methods.
Real WB data
Anti-MATH1/HATH1/ATOH1 Antibody Picoband®
Cat # A02207-1
These anti-ATOH1 antibodies are selected for top Western blot performance, extensive citation in peer-reviewed literature, and rigorous validation, including orthogonal confirmation against negative tissue controls and complementary detection methods, ensuring reliable, reproducible detection of ATOH1 protein.
Which to pick: Only one Boster ATOH1 antibody is catalogued, A02207-1, which includes an actual Western blot validation image (SDS-PAGE, 5-20% gel), making it the default choice for ATOH1 WB experiments.
Source: BosterBio ATOH1 gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.
References
- UniProt Consortium. UniProt entry Q92858.
- Human Protein Atlas. ATOH1 tissue expression.