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- Table of Contents
TRIB3 / Tribbles homolog 3 · Western blot design guide
Design a Western Blot for TRIB3
Real validated TRIB3 Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-TRIB3 WB antibodies. Everything you need to plan the experiment before you commit precious samples.
Evidence assembled September 2026 · For research use; verify linked source records and product datasheet before use
TRIB3 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 | ~39.6 kDa | |
| Gel | 12–15% (standard starting point) | |
| Positive control | Soft tissue (IHC candidate; verify WB) +4 more | |
| Negative control | Adipose tissue (IHC candidate; verify WB) |
Important caveats
Reasons your observed band may differ from the expected size.
| PTM | Phosphorylated | |
| Caveat | Phosphorylation-state controls | |
| Gene-set association | MSigDB Hallmark membership | |
| Isoform | 1 isoform(s) |
Section 1
Real Curated TRIB3 Western Blot Protocols
The M01414-2 protocol combines labelled catalog values with standard starting conditions. Published comparisons retain their own sample, reagent and detection scope.
| Sample / lysate | 293T cell lysate (catalog M01414-2) |
| Gel % | 12–15% (standard starting point) |
| Load | 20–30 µg total protein per lane; optimize for abundance (standard starting point) |
| Transfer | Standard semi-dry transfer; verify efficiency (standard starting point) |
| Membrane | 0.45 µm PVDF (standard starting point) |
| Blocking | 5% milk or 5% BSA in TBST (standard starting point) |
| Primary antibody | M01414-2; use the WB datasheet starting dilution (standard starting point) |
| Primary incubation | Overnight at 4 °C (standard starting point) |
| Secondary antibody | Species-matched HRP conjugate at validated dilution (standard starting point) |
| Secondary incubation | 1 h at room temperature (standard starting point) |
| Wash | 3 × 5 min in TBST (standard starting point) |
| Detection | ECL; bracket exposures to avoid saturation (standard starting point) |
Section 2
What Is the Expected TRIB3 Western Blot Band Size?
TRIB3 is predicted at 39.6 kDa; Ser12 phosphorylation is annotated, but no empirical band or demonstrated migration effect is supplied.
| Band near 39.6 kDa | Consistent with predicted TRIB3 size; confirm its identity |
| Faint band near 39.6 kDa in whole-cell lysate | Could reflect limited recovery of nuclear TRIB3 |
| Band near 39.6 kDa in a nuclear fraction | Consistent with the annotated nuclear location of TRIB3 |
| Little or no band in a cytoplasmic fraction | Consistent with nuclear localization; check fraction purity |
💡Expected TRIB3 appearanceFull-length TRIB3 is predicted at 39.6 kDa, but no empirical band size is supplied; verify a band near that size with ordinary identity controls.
| UniProt predicted molecular weight | Places full-length TRIB3 near 39.6 kDa |
| Full-length TRIB3 reference mass | Corresponds to 39,578 Da; electrophoretic migration is unverified |
| Predicted mass as a blot reference | Provides an approximate position, not a validated apparent band size |
| Predicted mass for the annotated sequence | Does not establish a separate band at another size |
| Situation | Likely cause | Next action |
|---|---|---|
| No band in lysate | Nuclear TRIB3 may be poorly recovered | Check nuclear recovery and a positive control |
| Band higher than expected | The band identity or migration is unverified | Compare with a positive control and confirm with a second antibody |
| Band lower than expected | The band identity or sample integrity is unverified | Check sample integrity and confirm with a second antibody |
| Multiple bands | Only one isoform is annotated; additional bands are unassigned | Confirm band identity with a positive control and a second antibody |
| Weak or no signal | TRIB3 abundance or nuclear recovery may be low | Check loading, nuclear recovery, and a positive control |
Experiment evidence
Western blot images showing TRIB3 band
M01414-2 · TRIB3
M01414 · TRIB3
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for TRIB3 Western blot
🧪HPA-IHC candidate guidance (verify in WB): For positive controls for TRIB3 in Western blot, you can use soft tissue, which HPA rates as highly positive.
Positive control: Soft tissue (IHC candidate; verify WB)
Negative control: Adipose tissue (IHC candidate; verify WB)
Loading controls: Run GAPDH, β-actin, and a total-protein stain alongside the samples.
⚠️Feasibility: HPA identifies high-expression tissues and not-detected tissues, making tissue controls feasible for nuclear TRIB3.
HPA tissue expression evidence for TRIB3
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.
Higher expression tissues · candidate positive controls from IHC
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Soft tissue | chondrocytes | High | Protein (IHC) | HPA → |
| Testis | Leydig cells | High | Protein (IHC) | HPA → |
| Caudate | neuronal cells | Medium | Protein (IHC) | HPA → |
| Cervix | squamous epithelial cells | Medium | Protein (IHC) | HPA → |
| Epididymis | glandular cells | Medium | Protein (IHC) | HPA → |
Lower expression tissues · IHC evidence, not confirmed WB-negative controls
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Adipose tissue | adipocytes | Not detected | Protein (IHC) | HPA → |
| Bone marrow | hematopoietic cells | Not detected | Protein (IHC) | HPA → |
| Breast | adipocytes | Not detected | Protein (IHC) | HPA → |
| Endometrium | cells in endometrial stroma | Not detected | Protein (IHC) | HPA → |
| Heart muscle | cardiomyocytes | Not detected | Protein (IHC) | HPA → |
Section 3
Advanced TRIB3 Western Blot Tips
Deeper troubleshooting and optimisation questions for TRIB3, answered from its protein features.
How should TRIB3 band migration be interpreted?
Band shift · Use the separately labelled calculated mass and catalog-observed evidence above. A sequence annotation does not establish an observed migration shift. Verify target identity with orthogonal controls.
Could TRIB3 isoforms explain multiple bands?
Isoforms · The supplied record lists one isoform and no alternative sequence. Do not assign additional bands to TRIB3 isoforms from these features alone.
Could phosphorylation shift the TRIB3 band?
PTM · UniProt annotates phosphoserine at position 12 of its 358-residue canonical sequence. Paper or antibody numbering may differ. This modification alone does not establish a visible band shift or explain a difference from 39.6 kDa.
Does this guide establish induction of TRIB3?
Induction · No general induction response is established by this guide. A pathway or gene-set association is not evidence of induction in a particular specimen. Verify the relevant treatment and control in a target-specific experiment.
What transfer method to use for TRIB3 Western blot?
Transfer · TRIB3 has a predicted mass of 39.6 kDa. The supplied features do not specify a transfer method; check transfer at approximately this size with a molecular weight marker.
How should blocking be optimized?
Blocking · Standard workflow guidance: follow the M01414-2 datasheet where specified. Otherwise compare 5% milk or 5% BSA in TBST; for a phospho-specific assay start with BSA. Optimize background and specific signal with matched controls.
How should TRIB3 be quantified in cell fractions?
Quantitation · TRIB3 is annotated in the nucleus. If measuring a nuclear fraction, compare samples with consistent fraction loading and assess nuclear recovery before interpreting differences in band intensity.
Where should TRIB3 appear on a Western blot?
Interpretation · The predicted mass is 39.6 kDa, but no observed band position is supplied. Compare the band with a molecular weight marker; the listed features do not establish its apparent mass.
Compare them with the predicted 39.6 kDa mass, but do not identify them from position alone. The record lists one isoform, phosphoserine at UniProt position 12, and no glycosylation, signal peptide, or propeptide. None establishes an additional band.
Compare them with the predicted 39.6 kDa mass, but do not identify them from position alone. The record lists one isoform, phosphoserine at UniProt position 12, and no glycosylation, signal peptide, or propeptide. None establishes an additional band.
Boster reagents
TRIB3 Western Blot Antibodies
Catalog antibodies with Western blot application and product-specific WB images. Evaluate suitability with the reported sample, controls and experimental conditions.
Real WB data
Anti-TRIB3 Rabbit Monoclonal Antibody
Cat # M01414-2
Real WB data
Anti-TRIB3 Monoclonal Antibody
Cat # M01414
Two the supplier anti-TRIB3 monoclonal antibodies list human reactivity and include Western blot images. M01414 shows an approximately 40 kDa band in four human cell lysates; M01414-2 shows 293T lysate. The supplied evidence does not establish specificity by independent validation.
Which to pick: For human K562, CACO-2, 293T, or HepG2 lysates, M01414 has a documented WB image with conditions and an approximately 40 kDa band. M01414-2 also has a WB image, but its supplied caption covers only 293T lysate.
Source: BosterBio TRIB3 gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.
References
- UniProt Consortium. UniProt entry Q96RU7.
- Human Protein Atlas. TRIB3 tissue expression.
- PMC7456033 — target-verified WB comparison
- PMC8033215 — target-verified WB comparison
- PMC13547159 — target-verified WB comparison