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- Table of Contents
RHO / Rhodopsin · Western blot design guide
Design a Western Blot for RHO
Real validated RHO Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-RHO 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
RHO 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 | ~38.9 kDa | |
| Gel | 12–15% (standard starting point) | |
| Positive control | Retina (IHC candidate; verify WB) | |
| Negative control | Adipose tissue (IHC candidate; verify WB) |
Important caveats
Reasons your observed band may differ from the expected size.
| PTM | Glycosylated + Phosphorylated | |
| Caveat | N-linked glycosylation | |
| Gene-set association | MSigDB C7 membership | |
| Isoform | 1 isoform(s) |
Section 1
Real Curated RHO Western Blot Protocols
The M00083 protocol combines labelled catalog values with standard starting conditions. Published comparisons retain their own sample, reagent and detection scope.
| Sample / lysate | rat eyeball lysate (catalog M00083) |
| 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 | M00083; 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 RHO Western Blot Band Size?
RHO has a 38.9 kDa predicted backbone; N-linked glycans can shift and broaden its monomer band, while retained homodimers can produce a higher band.
| Band near 38.9 kDa | RHO monomer near its predicted backbone mass |
| Band above 38.9 kDa | N-linked glycans increase the apparent monomer size |
| Broad band above 38.9 kDa | Variation in glycosylation at Asn2 and Asn15 |
| Band near twice the monomer size | RHO homodimer retained during sample preparation |
💡Expected RHO appearanceExpect a RHO monomer band above its 38.9 kDa predicted backbone mass because of N-linked glycosylation, potentially broadened by glycoforms, with a higher homodimer band if dimers persist.
| Predicted RHO mass | 38.9 kDa backbone reference for the monomer |
| N-linked glycosylation at Asn2 | Can increase apparent monomer size |
| N-linked glycosylation at Asn15 | Can increase apparent monomer size and contribute to band breadth |
| RHO homodimer formation | Can produce a band near twice the monomer size if dimers persist |
| Situation | Likely cause | Next action |
|---|---|---|
| No band in lysate | RHO is a multi-pass membrane protein concentrated in photoreceptor structures | Check that the sample contains RHO-expressing cells and that membrane proteins were recovered |
| Band higher than expected | N-linked glycosylation or retained RHO homodimers | Compare reducing conditions and assess whether glycan removal shifts the band |
| Band lower than expected | Reduced glycan contribution to apparent size | Compare with a glycan-treated sample and the 38.9 kDa backbone reference |
| Broad smear instead of sharp band | Heterogeneous N-linked glycosylation | Compare bands before and after glycan removal |
| Multiple bands | Glycoforms and persistent homodimers | Compare reducing conditions and glycan-treated samples |
| Weak or no signal | Limited recovery of membrane-associated RHO | Check membrane-protein extraction and enrichment |
Experiment evidence
Western blot images showing RHO band
M00083 · RHO
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for RHO Western blot
🧪HPA-IHC candidate guidance (verify in WB): For positive controls for RHO in Western blot, you can use retina lysate, where HPA reports high expression.
Positive control: Retina (IHC candidate; verify WB)
Negative control: Adipose tissue (IHC candidate; verify WB)
Loading controls: Run GAPDH, β-actin, and a total-protein stain such as Ponceau alongside the samples.
⚠️Feasibility: RHO is a multi-pass membrane protein, so membrane-rich retina preparations may give a clearer signal than whole-tissue lysate.
HPA tissue expression evidence for RHO
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 |
|---|---|---|---|---|
| Retina | photoreceptor cells | High | 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 → |
| Adrenal gland | glandular cells | Not detected | Protein (IHC) | HPA → |
| Appendix | glandular cells | Not detected | Protein (IHC) | HPA → |
| Bone marrow | hematopoietic cells | Not detected | Protein (IHC) | HPA → |
| Breast | adipocytes | Not detected | Protein (IHC) | HPA → |
Section 3
Advanced RHO Western Blot Tips
Deeper troubleshooting and optimisation questions for RHO, answered from its protein features.
How should RHO 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 multiple RHO bands represent different isoforms?
Isoforms · Only one isoform is listed. If multiple bands appear, consider differences in modification or sample handling before assigning them to isoforms.
How should glycosylation affect RHO band interpretation?
PTM · RHO has two glycosylation sites. If bands differ in mobility, compare untreated and deglycosylated samples to assess whether glycosylation contributes; the supplied features do not establish a specific shift.
RHO is annotated as a glycoprotein and phosphoprotein, with eight modified residues listed. If the assay produces several RHO bands, define which bands are included in quantitation and apply that rule consistently across samples.
RHO is annotated as a glycoprotein and phosphoprotein, with eight modified residues listed. If the assay produces several RHO bands, define which bands are included in quantitation and apply that rule consistently across samples.
Does this guide establish induction of RHO?
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 RHO Western blot?
Transfer · RHO is a multi-pass membrane protein. Check transfer efficiency for the membrane-protein band near its predicted 38.9 kDa mass, and adjust the transfer conditions if RHO remains in the gel. The supplied features do not identify a preferred transfer method.
How should blocking be optimized?
Blocking · Standard workflow guidance: follow the M00083 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 RHO be quantified?
Quantitation · Standard workflow guidance: quantify only a validated target band within the linear exposure range. Use consistent sample preparation and loading, retain biological replicates, and avoid interpreting saturation or loading differences as regulation.
Why might RHO migrate differently from its predicted 38.9 kDa?
Interpretation · RHO has two glycosylation sites and eight listed modified residues, so its apparent migration may differ from the predicted mass. No empirical band position is supplied; use 38.9 kDa as a reference, not a fixed expected band.
RHO is described as a homodimer by similarity. A higher band could be consistent with associated RHO molecules, but band position alone cannot establish a dimer; compare sample preparation conditions.
A lower band is not evidence of a listed isoform: only one isoform is supplied, and no signal peptide or propeptide is listed. Verify that the band is RHO before assigning a cause; the supplied features do not establish a cleavage product.
RHO is described as a homodimer by similarity. A higher band could be consistent with associated RHO molecules, but band position alone cannot establish a dimer; compare sample preparation conditions.
A lower band is not evidence of a listed isoform: only one isoform is supplied, and no signal peptide or propeptide is listed. Verify that the band is RHO before assigning a cause; the supplied features do not establish a cleavage product.
Boster reagents
RHO 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-Rhodopsin Rabbit Monoclonal Antibody
Cat # M00083
M00083 is the selected image-backed reagent. Its catalog WB caption reports Western blot analysis of Rhodopsin expression in rat eyeball lysate.. This sample example does not establish universal reactivity; verify suitability with target-positive and orthogonal negative controls.
Source: BosterBio RHO gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.
References
- UniProt Consortium. UniProt entry P08100.
- Human Protein Atlas. RHO tissue expression.
- PMC4303996 — target-verified WB comparison
- PMC7318274 — target-verified WB comparison