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- Table of Contents
TTR · Western blot design guide
TTR Western Blot Planning Guide
Plan a TTR Western blot around the catalog-observed 15.9 kDa band, image-backed PB9749 evidence, HPA controls, and verified protocol records.
Evidence assembled July 2026 · For research use; verify linked source records and product datasheet before use
TTR 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 | 15.9 kDa | |
| Observed band | Not reported — verify product WB image | |
| Gel | 15% | |
| Positive control | Liver | |
| Negative control | Adrenal gland |
Important caveats
Reasons your observed band may differ from the expected size.
| ⓘ | Calculated mass | 15.9 kDa |
| ⓘ | Localization | Secreted / Cytoplasm |
| ⓘ | Processing / PTM | Record-dependent |
| ⓘ | Reactivity | Human |
Section 1
Real Curated TTR Western Blot Protocols
Start with the molecular-weight rule, then compare verified publication-derived conditions.
| Sample / lysate | Choroid plexus |
| Gel % | 15% |
| Load | 20-30 µg total protein per lane |
| Transfer | Semi-dry, short transfer |
| Membrane | 0.2 µm PVDF |
| Blocking | 5% non-fat milk or 5% BSA in TBST |
| Primary | PB9749 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 2
What Is the Expected TTR Western Blot Band Size?
Use the product-observed 15.9 kDa band as the primary planning value and retain the UniProt calculated mass as context.
| 15.9 kDa | Matches the authoritative product WB observation. |
| 15.9 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 TTR appearancePlan around 15.9 kDa and keep the calculated mass as supporting context.
| Catalog-observed band | 15.9 kDa; use this as the primary experimental expectation. |
| Calculated mass | 15.9 kDa from UniProt P02766; retain as context. |
| Gel selection | 15%; shared with the recommended protocol and poster. |
| Specificity check | Compare the lead HPA positive and negative controls with PB9749. |
| Situation | Likely cause | Next action |
|---|---|---|
| 15.9 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 TTR band
PB9749 · TTR
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for TTR Western blot
🧪Use Liver as the first positive-control candidate and Adrenal gland as the HPA Not detected negative candidate.
Positive control: Liver (Medium)
Negative control: Adrenal gland (Not detected)
HPA protein score determines control status; other expression data is supporting context only.
HPA tissue expression evidence for TTR
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 |
|---|---|---|---|---|
| Liver | Reported tissue cells | Medium | Protein (HPA) | HPA → |
| Pancreas | Reported tissue cells | Medium | Protein (HPA) | HPA → |
| Choroid plexus | Reported tissue cells | Medium | Protein (HPA) | HPA → |
| Kidney | Reported tissue cells | Low | Protein (HPA) | HPA → |
Section 3
Advanced TTR Western Blot Tips
Deeper troubleshooting and optimisation questions for TTR, answered from its protein features.
Which band should guide the blot?
Use 15.9 kDa, the observation attached to the authoritative PB9749 WB record.
How should calculated mass be interpreted?
Treat the UniProt calculated mass as context; it does not replace the catalog-observed 15.9 kDa expectation.
Which positive control should I start with?
Start with Liver, the lead HPA protein-expression candidate.
Which negative control is defensible?
Use Adrenal gland as an orthogonal HPA Not detected candidate.
Which gel should I use?
Use 15% consistently across the quick facts, protocol table, and poster.
What transfer method to use for TTR Western blot?
Use the transfer method in the recommended protocol and verify transfer before blocking.
How should PB9749 be started?
Start at the linked datasheet condition and run a three-point primary-antibody dilution test.
Which publication-derived protocols can I compare?
No verified publication protocol was supplied; use only the deterministic recommended protocol.
Boster reagents
TTR Western Blot Reagents
Human-reactive TTR Western blot reagents with authoritative product imagery.
Real WB data
Anti-Prealbumin/TTR Antibody Picoband®
Cat # PB9749
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.
References
- UniProt P02766
- Human Protein Atlas — TTR
- PB9749 product record
- PMC12625856 — Amino acid insufficiency impairs hepatic vitamin A mobilization in mice (Proceedings of the National Academy of Sciences of the United States of America, 2025)
- PMC4222630 — Curcumin could reduce the monomer of TTR with Tyr114Cys mutation via autophagy in cell model of familial amyloid polyneuropathy (Drug design, development and therapy, 2014)