This website uses cookies to ensure you get the best experience on our website.
- Table of Contents
FNDC5 · Western blot design guide
FNDC5 Western Blot Planning Guide
Plan a FNDC5 Western blot around the catalog-observed 28.3 kDa band, image-backed A02538-1 evidence, HPA controls, and verified protocol records.
Evidence assembled July 2026 · For research use; verify linked source records and product datasheet before use
FNDC5 Western Blot Experimental Design Guide
Expected bands, documented protocol parameters, controls and antibodies — the at-a-glance facts below, then the full design guide.
Must know before running
| Expected band | 28.3 kDa | |
| Observed band | Not reported — verify product WB image | |
| Gel | 12-15% | |
| Positive control | Heart muscle | |
| Negative control | Appendix |
Important caveats
Reasons your observed band may differ from the expected size.
| ⓘ | Calculated mass | 28.3 kDa |
| ⓘ | Localization | Cell membrane / Peroxisome membrane |
| ⓘ | Processing / PTM | Record-dependent |
| ⓘ | Reactivity | Human / Mouse / Rat |
Sample controls for FNDC5 Western blot
🧪Use Heart muscle as the first positive-control candidate and Appendix as the HPA Not detected negative candidate.
Positive control: Heart muscle (Medium)
Negative control: Appendix (Not detected)
HPA protein score determines control status; other expression data is supporting context only.
HPA tissue expression evidence for FNDC5
Comprehensive Human Protein Atlas IHC scoring per tissue. Rows are taken directly from the HPA tissue chart on each tissue page — click any row's HPA link to view the source.
Positive expression · recommended positive controls
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Heart muscle | Reported tissue cells | Medium | Protein (HPA) | HPA → |
| Skeletal muscle | Reported tissue cells | Medium | Protein (HPA) | HPA → |
| Adrenal gland | Reported tissue cells | Low | Protein (HPA) | HPA → |
| Kidney | Reported tissue cells | Low | Protein (HPA) | HPA → |
Section 1
What Is the Expected FNDC5 Western Blot Band Size?
Use the product-observed 28.3 kDa band as the primary planning value and retain the UniProt calculated mass as context.
| 28.3 kDa | Matches the authoritative product WB observation. |
| 28.3 kDa calculated | Use as UniProt context, not as a replacement observed band. |
| Unexpected additional signal | Do not assign identity without orthogonal positive/negative controls. |
💡Expected FNDC5 appearancePlan around 28.3 kDa and keep the calculated mass as supporting context.
| Catalog-observed band | 28.3 kDa; use this as the primary experimental expectation. |
| Calculated mass | 28.3 kDa from UniProt Q8NAU1; retain as context. |
| Gel selection | 12-15%; shared with the recommended protocol and poster. |
| Specificity check | Compare the lead HPA positive and negative controls with A02538-1. |
| Situation | Likely cause | Next action |
|---|---|---|
| 28.3 kDa | Matches the authoritative product WB observation. | Confirm with orthogonal controls and the linked product record. |
| Additional band | May reflect processing, modification, or non-specific signal. | Run a dilution series and compare positive/negative controls. |
| Weak signal | Target abundance or transfer may be limiting. | Verify transfer, increase positive-control abundance, and bracket exposure. |
Experiment evidence
Western blot images showing FNDC5 band
A02538-1 · FNDC5Observed 28.3 kDa · product-specific WB image
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Section 2
Real Curated FNDC5 Western Blot Protocols
Start with the molecular-weight rule, then compare verified publication-derived conditions.
| Sample / lysate | Heart muscle |
| Gel % | 12-15% |
| Load | 20-30 µg total protein per lane |
| Transfer | Semi-dry, short transfer |
| Membrane | 0.45 µm PVDF |
| Blocking | 5% non-fat milk or 5% BSA in TBST |
| Primary | A02538-1 at datasheet starting dilution |
| Primary incubation | Overnight at 4 °C with gentle agitation |
| Secondary | Species-matched HRP conjugate at validated dilution |
| Wash | 3 × 5 min in TBST |
| Detection | Chemiluminescent substrate |
| Exposure | Bracket exposures to avoid saturation |
Section 4
Advanced FNDC5 Western Blot Tips
Deeper troubleshooting and optimisation questions for FNDC5, answered from its protein features.
Which band should guide the blot?
Use 28.3 kDa, the observation attached to the authoritative A02538-1 WB record.
How should calculated mass be interpreted?
Treat the UniProt calculated mass as context; it does not replace the catalog-observed 28.3 kDa expectation.
Which positive control should I start with?
Start with Heart muscle, the lead HPA protein-expression candidate.
Which negative control is defensible?
Use Appendix as an orthogonal HPA Not detected candidate.
Which gel should I use?
Use 12-15% consistently across the quick facts, protocol table, and poster.
What transfer method to use for FNDC5 Western blot?
Use the transfer method in the recommended protocol and verify transfer before blocking.
How should A02538-1 be started?
Start at the linked datasheet condition and run a three-point primary-antibody dilution test.
Which publication-derived protocols can I compare?
Compare only the supplied target-verified records: PMC9948126, PMC9858987.
Boster reagents
FNDC5 Western Blot Reagents
Human/Mouse/Rat-reactive FNDC5 Western blot reagents with authoritative product imagery.
Real WB data
Anti-FNDC5 Antibody Picoband®
Cat # A02538-1
Reactivity: Human, Mouse, Rat
Only image-backed, WB-validated Human/Mouse/Rat recommendations from the prepared catalog evidence are shown.
Source: prepared picoband-wb product evidence; each card retains its own SKU, URL, observed band, and authoritative WB image.