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HDAC7 · Western blot design guide
Design a Western Blot for HDAC7
Real validated HDAC7 Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-HDAC7 WB antibodies. Everything you need to plan the experiment before you commit precious samples.
Last reviewed: May 2026 · Scientific review: Boster Bio technical team
HDAC7 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 | ~102.9 kDa | |
| Observed band | ~103 kDa | |
| Gel | 8–10% | |
| Negative control | siRNA / KO lysate |
Important caveats
Reasons your observed band may differ from the expected size.
| PTM | Phosphorylated | |
| Caveat | Multiple isoforms | |
| Regulation | IFN-γ-induced | |
| Isoform | 10 isoform(s) |
Section 1
Real Curated HDAC7 Western Blot Protocols
Literature-validated Western blot parameters for HDAC7 — gel percentage, transfer, blocking, antibody incubation and detection, extracted from published methods.
| Sample / lysate | Rat Spleen at 50ug, Lane 2: Rat Thymus at 50ug, Lane 3: Human Placenta at 50ug, Lane 4: HELA at 40ug. 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-HDAC7 antigen affinity purified polyclonal antibody (Catalog # PB9629) 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 HDAC7 at approximately 103 kDa. The expected band size for HDAC7 is at 103 kDa |
| Gel % | 8–10% |
| 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 | 103 kDa |
Section 2
What Is the Expected HDAC7 Western Blot Band Size?
HDAC7 has a 102.9 kDa predicted backbone and is empirically observed at ~103 kDa, closely matching since it lacks glycosylation, cleavage, or dimerization that would shift its mass.
| single sharp band at approximately 103 kDa | matches HDAC7's predicted 102.9 kDa mass with no glycosylation, disulfide dimerization, or proteolytic cleavage to shift it |
| band running slightly diffuse or marginally above the core 103 kDa position | reflects extensive phosphorylation at 12+ sites, including residues targeted by PKD/PRKD1, PKD/PRKD2, MARK2 and MARK3 |
| additional bands at molecular weights other than ~103 kDa in some samples | HDAC7 is alternatively spliced into 10 annotated isoforms, so different transcripts can add bands of differing size |
| signal detected in both nuclear- and cytoplasmic-enriched fractions | HDAC7 shuttles between nucleus and cytoplasm, so either compartment can yield the ~103 kDa band |
| no smaller cleaved fragment migrating below the main band | HDAC7 has no signal peptide or propeptide, so there is no precursor-to-mature processing step to produce one |
💡Expected HDAC7 appearanceOn standard reducing SDS-PAGE, HDAC7 is empirically observed as a single band at approximately 103 kDa, consistent with its 952-residue, 102.9 kDa predicted mass and its lack of glycosylation, disulfide dimerization, or cleavage.
| predicted mass (102.9 kDa, 952 aa) | sets the baseline expected migration position, matching the empirically observed ~103 kDa band |
| extensive phosphorylation (12 modified residues, including sites targeted by PKD/PRKD1, PKD/PRKD2, MARK2 and MARK3) | can cause a modest upward mobility shift or band broadening without materially changing the core molecular weight |
| 10 alternatively spliced isoforms | different transcripts can add extra bands larger or smaller than the canonical ~103 kDa band depending on which isoform is expressed |
| absence of a signal peptide or propeptide | no precursor-to-mature cleavage occurs, so no smaller processed fragment is expected |
| no glycosylation sites or disulfide bonds | rules out a smeared higher-molecular-weight glycoform or a ~200 kDa disulfide-linked dimer band under non-reducing conditions |
| Situation | Likely cause | Next action |
|---|---|---|
| No band in lysate | HDAC7 expression is tissue-restricted and can be below detection in lysates from non- or low-expressing cell types | confirm with a positive-control tissue lysate (e.g. spleen, thymus, or placenta) known to express HDAC7 and increase total protein loaded |
| Band higher than expected | hyperphosphorylation at one or more of HDAC7's 12 known phosphosites shifts apparent mobility upward | treat lysate with a phosphatase (e.g. lambda phosphatase) before loading to collapse the shift toward the unmodified ~103 kDa position |
| Multiple bands | detection of more than one of the 10 annotated HDAC7 splice isoforms in the sample | compare band sizes against isoform-specific references and confirm the intended isoform using an epitope-mapped antibody |
| Broad smear instead of sharp band | heterogeneous phosphorylation states cause a population of HDAC7 molecules to migrate at slightly different rates | dephosphorylate the lysate prior to electrophoresis or resolve on a lower-percentage gel to sharpen the band |
| Weak or no signal | low endogenous HDAC7 abundance combined with nucleocytoplasmic shuttling can dilute signal in a whole-cell lysate | prepare a nuclear-enriched fraction, load more total protein, and keep lysates cold with protease/phosphatase inhibitors |
| Fragments below expected size | proteolytic degradation of this large 952-residue protein during lysate preparation | add protease inhibitors, keep samples on ice throughout lysis, and minimize freeze-thaw cycles |
Experiment evidence
Western blot images showing HDAC7 band
PB9629 · HDAC7
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for HDAC7 Western blot
🧪For positive controls for HDAC7 in Western blot, you can use skeletal muscle tissue lysate, since HDAC7 is documented to shuttle between the nucleus and cytoplasm in muscle cells.
Positive control: Skeletal muscle
Negative control: ubiquitously expressed; use siRNA knockdown or KO line
Loading controls: Run GAPDH, β-actin, and a total-protein stain (stain-free gel, Ponceau S, or REVERT) alongside HDAC7 blots to confirm equal loading.
⚠️Feasibility: No Human Protein Atlas expression data is available for HDAC7, so a validated negative tissue cannot be confirmed; combine whole-cell lysate (given its nuclear/cytoplasmic localization, not secreted) with an siRNA knockdown or CRISPR KO line to establish antibody specificity.
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 HDAC7 Western Blot Tips
Deeper troubleshooting and optimisation questions for HDAC7, answered from its protein features.
Does the observed band match the predicted mass?
Yes. Predicted mass is 102.9 kDa and the observed band runs at ~103 kDa, so no unexplained shift is expected. If your band runs notably higher, check for phosphorylation-driven mobility shift rather than assuming a nonspecific band.
Why might multiple HDAC7 bands appear on blots?
HDAC7 has 10 annotated isoforms from alternative splicing. Isoform-specific exon inclusion can shift apparent size on the gel, so a doublet or extra band near 103 kDa may reflect isoform expression rather than degradation or nonspecific binding.
Can phosphorylation affect HDAC7 migration on SDS-PAGE?
HDAC7 is a phosphoprotein with 12 annotated modified residues. Phosphorylation regulates its nuclear-cytoplasmic shuttling, and heavily phosphorylated pools can migrate slightly slower on SDS-PAGE, contributing to minor band-shift or smearing near the main 103 kDa band.
Should blocking conditions account for nuclear localization?
HDAC7 is primarily nuclear but shuttles to the cytoplasm, so lysates should include nuclear extraction steps for full recovery. Standard 5% milk or BSA blocking is sufficient; no glycosylation or disulfide bonds are present, so no special reducing or deglycosylation steps are needed.
What transfer method to use for HDAC7 Western blot?
At ~103 kDa, use wet (tank) transfer with extended time (60-90 min) or overnight at low voltage, since large proteins transfer inefficiently with rapid semi-dry systems. Confirm transfer efficiency with total protein stain before proceeding to blocking and antibody incubation.
What loading control is appropriate for HDAC7 blots?
Since HDAC7 is nuclear with cytoplasmic shuttling, use a nuclear marker like Lamin B1 or Histone H3 for nuclear fractions, or total protein normalization if using whole-cell lysate, rather than a purely cytoplasmic control like GAPDH.
Could interacting proteins cause unexpected extra bands?
HDAC7 associates with HDAC1-5, NCOR1, NCOR2, SIN3A/B, and other complex members, but SDS-PAGE denatures these interactions. Extra bands are more likely isoform variants or degradation products than co-migrating complex partners, since native interactions should not survive denaturing conditions.
Is a lower molecular weight band a degradation product?
Possibly. HDAC7 has no signal peptide or propeptide, so smaller bands are not processing intermediates. Lower bands more likely reflect proteolytic degradation during lysis or a specific isoform; include protease inhibitors and compare against isoform size predictions before concluding nonspecific binding.
Boster reagents
Best HDAC7 Western Blot Antibodies
BosterBio's HDAC7 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-HDAC7 Antibody Picoband®
Cat # PB9629
Our recommended anti-HDAC7 antibody for Western blot represents the best-performing option available, widely cited across published studies and thoroughly validated through orthogonal approaches, including cross-validation against negative control tissue, ensuring confident, reproducible detection of HDAC7 in your samples.
Which to pick: Only one HDAC7 antibody is catalogued, PB9629, so it is the clear choice: it includes a genuine Western blot validation image showing detection in rat spleen tissue, confirming specificity and reliable performance for your blot.
Source: BosterBio HDAC7 gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.
References
- UniProt Consortium. UniProt entry Q8WUI4.
- Human Protein Atlas. HDAC7 tissue expression.