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PRDM14 · Western blot design guide
Design a Western Blot for PRDM14
Real validated PRDM14 Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-PRDM14 WB antibodies. Everything you need to plan the experiment before you commit precious samples.
Last reviewed: May 2026 · Scientific review: Boster Bio technical team
PRDM14 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 | ~64.1 kDa | |
| Gel | 10–12% | |
| Negative control | siRNA / KO lysate |
Important caveats
Reasons your observed band may differ from the expected size.
| PTM | Phosphorylated | |
| Caveat | — | |
| Regulation | IFN-γ-induced | |
| Isoform | 1 isoform(s) |
Section 1
Real Curated PRDM14 Western Blot Protocols
Literature-validated Western blot parameters for PRDM14 — gel percentage, transfer, blocking, antibody incubation and detection, extracted from published methods.
| Sample / lysate | rat testis , Lane 2: rat spleen , Lane 3: rat C6 , Lane 4: rat PC-12 , Lane 5: mouse testis , Lane 6: mouse spleen , Lane 7: mouse NIH/3T3 , Lane 8: mouse Neuro-2a . After Electrophoresis, proteins were transferred to a Nitrocellulose membrane at 150mA 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-PRDM14 antigen affinity purified polyclonal antibody (Catalog # A03870-2) at 0.25 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 PRDM14 at approximately 64KD. The expected band size for PRDM14 is at 64KD |
| Gel % | 10–12% |
| Load | 30ug |
| Transfer | nitrocellulose membrane, 150 mA, 50–90 min |
| Membrane | nitrocellulose |
| Blocking | 5% non-fat milk / TBS, 1.5 h RT |
| Primary antibody | 0.25 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 | 64 kDa |
Section 2
What Is the Expected PRDM14 Western Blot Band Size?
PRDM14 is predicted at 64 kDa and, lacking glycosylation, disulfide dimerization, or splice isoforms, should appear as a single clean band near that size.
| single sharp band near 64 kDa | matches the predicted mass of PRDM14, which carries no glycosylation, disulfide linkage, or cleavage to shift it |
| band detected in nuclear or whole-cell lysate but faint in cytoplasmic-only fractions | PRDM14 is annotated as a nuclear protein, so nuclear-inclusive lysis is needed to recover it |
| no additional band at roughly double the mass on non-reducing gels | no disulfide bonds are annotated, so PRDM14 does not form a covalent homodimer |
| no smeared or diffuse band above the main species | the absence of annotated glycosylation sites means there is no heterogeneous carbohydrate modification to broaden the band |
| single band with no doublet | only one isoform of PRDM14 is annotated, so no alternate-splicing band is expected |
| no smaller cleaved species below the main band | no signal peptide or propeptide is annotated, so the full-length translated product is the mature protein |
💡Expected PRDM14 appearanceExpect a single clean band at approximately 64 kDa, matching the predicted mass, since PRDM14 has no glycosylation, disulfide-linked dimerization, cleavage, or isoform variation to shift its migration.
| Predicted mass (64.1 kDa) | sets the baseline expected migration position on SDS-PAGE |
| Absence of glycosylation sites | prevents a higher or smeared band relative to the predicted mass |
| Absence of disulfide bonds | prevents an approximately doubled-mass band from covalent homodimer formation under non-reducing conditions |
| No signal peptide or propeptide | means the full translated protein is the mature form, with no smaller processed species |
| Single annotated isoform | means no additional bands arise from alternative splicing |
| Zinc-finger and repeat domains with bound metal | can cause folded zinc-finger regions to retain structure in SDS-PAGE, sometimes giving slightly anomalous (often higher) migration than the predicted mass |
| Situation | Likely cause | Next action |
|---|---|---|
| No band in lysate | PRDM14 is a nuclear protein, so lysis conditions that do not adequately solubilize the nuclear fraction can fail to extract it | use a nuclear or whole-cell lysis buffer with sufficient detergent and confirm nuclear protein recovery with a nuclear marker |
| Band higher than expected | the multiple zinc-finger and repeat domains can remain partly folded and bind SDS poorly, causing anomalous migration above the predicted 64 kDa | boil samples longer in fresh reducing sample buffer to fully denature the zinc-finger regions before loading |
| Multiple bands | extra bands likely reflect nonspecific antibody cross-reactivity or proteolytic clipping of the zinc-finger domains, since only one isoform is annotated | validate specificity with a knockdown or knockout control and include fresh protease inhibitors during lysis |
| Weak or no signal | PRDM14 is a low-abundance nuclear transcription factor, so total protein loaded may be insufficient | increase total lysate or nuclear extract loaded and consider a more sensitive detection method |
| Fragments below expected size | since no propeptide or signal peptide cleavage is annotated, smaller fragments indicate proteolytic degradation during sample handling rather than natural processing | keep samples cold, add protease inhibitors immediately at lysis, and minimize freeze-thaw cycles |
Experiment evidence
Western blot images showing PRDM14 band
A03870-2 · PRDM14
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for PRDM14 Western blot
🧪For positive controls for PRDM14 in Western blot, you can use PRDM14-overexpressing cell lysate (e.g., transiently transfected HEK293 cells), since no Human Protein Atlas expression data are available to identify a tissue or cell line with confirmed endogenous expression.
Positive control: PRDM14-transfected HEK293 lysate
Negative control: no HPA data available; use untransfected parental cells or siRNA knockdown/KO line
Loading controls: Run GAPDH and β-actin antibody blots alongside a total-protein stain (stain-free gel, Ponceau S, or REVERT) as loading controls.
⚠️Feasibility: Because PRDM14 has no reported endogenous expression data in HPA, a genuine tissue-based positive/negative control pair is not currently feasible, so validation should rely on an overexpression system paired with a knockdown/knockout negative to confirm 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 PRDM14 Western Blot Tips
Deeper troubleshooting and optimisation questions for PRDM14, answered from its protein features.
Why might PRDM14 run above its 64 kDa predicted mass?
PRDM14 carries a phosphorylated residue (UniProt lists one modified residue) and contains zinc-finger/PR and repeat domains; phosphorylation and compact zinc-binding folds commonly retard SDS-PAGE mobility, so an apparent band at 68-75 kDa on a 64 kDa protein is expected and not evidence of a wrong target.
Are there PRDM14 isoforms that explain multiple bands?
UniProt annotates only one PRDM14 isoform, with no alternative splice variants listed. Since no isoform-specific masses exist, additional bands are more likely due to post-translational modification, partial degradation, or off-target binding rather than genuine splice isoforms, so isoform variation should not be invoked to explain multi-band patterns.
What conditions induce PRDM14 expression before blotting?
PRDM14 is a nuclear transcriptional regulator whose expression is characteristically restricted to pluripotent and germline contexts rather than constitutive. Use embryonic stem cell or induced pluripotent stem cell nuclear lysates as positive controls, since standard somatic cell lines will show little or no signal regardless of antibody quality.
How should blocking be optimized for PRDM14 blots?
PRDM14 is not glycosylated, so glycan-directed blocking steps are unnecessary. Because it carries a phosphorylated residue, prefer BSA over milk if using a phospho-specific antibody, since casein in milk contains phosphoproteins that can cross-react and inflate background on phospho-detection blots.
What transfer method to use for PRDM14 Western blot?
PRDM14 (~64 kDa) is a nuclear DNA- and metal-binding transcription factor with no disulfide bonds or glycosylation, so standard wet-tank transfer to PVDF works well. Nuclear extracts can be viscous from residual chromatin, so ensure complete lysis and adequate transfer time to avoid incomplete transfer of this DNA-binding factor.
What loading control best normalizes PRDM14 quantitation?
Because PRDM14 localizes exclusively to the nucleus, normalize against a nuclear loading control such as Lamin B1 or Histone H3 rather than a whole-cell or cytoplasmic marker like GAPDH, which can misrepresent nuclear protein yield when nuclear extraction efficiency varies across samples.
What explains unexpected extra bands on PRDM14 blots?
PRDM14 interacts with CBFA2T2 in a complex; incomplete denaturation can leave higher-molecular-weight complex bands. Its zinc-finger repeat domains are also susceptible to partial proteolysis during nuclear extraction, producing lower-molecular-weight fragments. Use fresh lysates with protease inhibitors and complete reduction/denaturation to minimize these artifacts.
Boster reagents
Best PRDM14 Western Blot Antibodies
BosterBio's PRDM14 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-PRDM14 Antibody Picoband®
Cat # A03870-2
For PRDM14 Western blot, we recommend the validated Boster antibody below, selected for demonstrated specificity in an actual WB run rather than predicted reactivity, giving you a documented starting point for your own optimization and controls.
Which to pick: Only one PRDM14 antibody is catalogued here: A03870-2. It includes a real WB validation image (SDS-PAGE, 5-20% gel), so it's the practical default choice — just confirm species reactivity and lysate loading match your experimental setup before use.
Source: BosterBio PRDM14 gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.
References
- UniProt Consortium. UniProt entry Q9GZV8.
- Human Protein Atlas. PRDM14 tissue expression.