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- Table of Contents
RNF123 · Western blot design guide
RNF123 Western Blot Planning Guide
Plan a RNF123 Western blot around the catalog-observed 148.5 kDa band, image-backed A09642-1 evidence, HPA controls, and verified protocol records.
Evidence assembled July 2026 · For research use; verify linked source records and product datasheet before use
RNF123 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 | 148.5 kDa | |
| Observed band | Not reported — verify product WB image | |
| Gel | 8-10% | |
| Positive control | Cerebellum | |
| Negative control | Soft tissue |
Important caveats
Reasons your observed band may differ from the expected size.
| ⓘ | Calculated mass | 148.5 kDa |
| ⓘ | Localization | Cytoplasm |
| ⓘ | Processing / PTM | Record-dependent |
| ⓘ | Reactivity | Human / Mouse / Rat |
Section 1
Real Curated RNF123 Western Blot Protocols
Start with the molecular-weight rule, then compare verified publication-derived conditions.
| Sample / lysate | Cerebellum |
| Gel % | 8-10% |
| Load | 20-30 µg total protein per lane |
| Transfer | Wet/tank, extended transfer |
| Membrane | 0.45 µm PVDF |
| Blocking | 5% non-fat milk or 5% BSA in TBST |
| Primary | A09642-1 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 2
What Is the Expected RNF123 Western Blot Band Size?
Use the product-observed 148.5 kDa band as the primary planning value and retain the UniProt calculated mass as context.
| 148.5 kDa | Matches the authoritative product WB observation. |
| 148.5 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 RNF123 appearancePlan around 148.5 kDa and keep the calculated mass as supporting context.
| Catalog-observed band | 148.5 kDa; use this as the primary experimental expectation. |
| Calculated mass | 148.5 kDa from UniProt Q5XPI4; retain as context. |
| Gel selection | 8-10%; shared with the recommended protocol and poster. |
| Specificity check | Compare the lead HPA positive and negative controls with A09642-1. |
| Situation | Likely cause | Next action |
|---|---|---|
| 148.5 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 RNF123 band
A09642-1 · RNF123
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for RNF123 Western blot
🧪Use Cerebellum as the first positive-control candidate and Soft tissue as the HPA Not detected negative candidate.
Positive control: Cerebellum (High)
Negative control: Soft tissue (Not detected)
HPA protein score determines control status; other expression data is supporting context only.
HPA tissue expression evidence for RNF123
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 |
|---|---|---|---|---|
| Cerebellum | Reported tissue cells | High | Protein (HPA) | HPA → |
| Colon | Reported tissue cells | High | Protein (HPA) | HPA → |
| Kidney | Reported tissue cells | High | Protein (HPA) | HPA → |
| Epididymis | Reported tissue cells | High | Protein (HPA) | HPA → |
Section 3
Advanced RNF123 Western Blot Tips
Deeper troubleshooting and optimisation questions for RNF123, answered from its protein features.
Which band should guide the blot?
Use 148.5 kDa, the observation attached to the authoritative A09642-1 WB record.
How should calculated mass be interpreted?
Treat the UniProt calculated mass as context; it does not replace the catalog-observed 148.5 kDa expectation.
Which positive control should I start with?
Start with Cerebellum, the lead HPA protein-expression candidate.
Which negative control is defensible?
Use Soft tissue as an orthogonal HPA Not detected candidate.
Which gel should I use?
Use 8-10% consistently across the quick facts, protocol table, and poster.
What transfer method to use for RNF123 Western blot?
Use the transfer method in the recommended protocol and verify transfer before blocking.
How should A09642-1 be started?
Start at the linked datasheet condition and run a three-point primary-antibody dilution test.
Which publication-derived protocols can I compare?
No verified publication protocol was supplied; use only the deterministic recommended protocol.
Boster reagents
RNF123 Western Blot Reagents
Human/Mouse/Rat-reactive RNF123 Western blot reagents with authoritative product imagery.
Real WB data
Anti-RNF123 Antibody Picoband®
Cat # A09642-1
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 Q5XPI4
- Human Protein Atlas — RNF123
- A09642-1 product record
- PMC12523176 — Lactylation-induced ALKBH5 targets RNF123 to worsen retinal Müller cell activation through PKM2-regulated Glycolysis in diabetic retinopathy (Journal of translational medicine, 2025)
- PMC7281601 — Downregulation of the Ubiquitin-E3 Ligase RNF123 Promotes Upregulation of the NF-κB1 Target SerpinE1 in Aggressive Glioblastoma Tumors (Cancers, 2020)
- PMC7498369 — A novel mitochondrial amidoxime reducing component 2 is a favorable indicator of cancer and suppresses the progression of hepatocellular carcinoma by regulating the expression of p27 (Oncogene, 2020)