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TRPV1 · Western blot design guide
Design a Western Blot for TRPV1
Real validated TRPV1 Western blot protocols, expected-band and isoform facts, troubleshooting for weak or shifted signal, and recommended anti-TRPV1 WB antibodies. Everything you need to plan the experiment before you commit precious samples.
Last reviewed: May 2026 · Scientific review: Boster Bio technical team
TRPV1 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 | ~95 kDa | |
| Observed band | ~95 kDa | |
| Gel | 8–10% | |
| Negative control | siRNA / KO lysate |
Important caveats
Reasons your observed band may differ from the expected size.
| PTM | Glycosylated + Phosphorylated | |
| Caveat | Homotetramer formation | |
| Regulation | LPS-suppressed | |
| Isoform | 2 isoform(s) |
Section 1
Real Curated TRPV1 Western Blot Protocols
Literature-validated Western blot parameters for TRPV1 — gel percentage, transfer, blocking, antibody incubation and detection, extracted from published methods.
| Sample / lysate | human 293T , Lane 2: human HepG2 , Lane 3: rat liver , Lane 4: rat PC-12 . After electrophoresis, proteins were transferred to a nitrocellulose membrane at 150 mA for 50-90 minutes. Blocked the membrane with 5% non-fat milk/TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-TRPV1 antigen affinity purified polyclonal antibody (Catalog # A00128-4) at 0.5 μg/mL overnight at 4°C, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit (Catalog # EK1002) with Tanon 5200 system. A specific band was detected for TRPV1 at approximately 95 kDa. The expected band size for TRPV1 is at 95 kDa |
| Gel % | 8–10% |
| Load | 30 ug |
| Transfer | nitrocellulose membrane, 150 mA, 50–90 min |
| Membrane | nitrocellulose |
| Blocking | 5% non-fat milk / TBS, 1.5 h RT |
| Primary antibody | 0.5 µg/mL |
| Primary incubation | overnight at 4 °C |
| Secondary antibody | goat anti-rabbit IgG-HRP, 1:5000 |
| Wash | TBS-0.1% Tween, 3 × 5 min |
| Detection | ECL |
| Exposure / imaging | Tanon 5200 |
| Observed band | 95 kDa |
Section 2
What Is the Expected TRPV1 Western Blot Band Size?
TRPV1's ~95 kDa predicted backbone matches its ~95 kDa observed band, with only minor glycosylation-driven heterogeneity from the single N604 site and no disulfide-linked dimerization.
| single band at ~95 kDa | full-length TRPV1 monomer matching its predicted mass, the expected dominant band |
| band slightly smeared or shifted just above the core 95 kDa mass | N-linked glycosylation at Asn604 adding modest, heterogeneous mass |
| two bands at noticeably different molecular weights | co-migration of splice isoform 1 and isoform 2, which differ in length |
| faint higher-molecular-weight band or smear near the top of the resolving gel | incompletely denatured homotetrameric channel assembly not fully dissociated into monomers |
| band position unchanged between reducing and non-reducing sample buffer | TRPV1 has no inter-chain disulfide bonds, so reduction does not alter monomer size |
💡Expected TRPV1 appearanceTRPV1 runs as a single band at ~95 kDa, matching its predicted mass, with only a modest glycosylation-driven shift from the lone N604 site and no dimer-sized doubling since it has no inter-chain disulfide bonds.
| Predicted mass (839 aa, ~95 kDa) | sets the baseline monomer position, matching the ~95 kDa band typically observed |
| N-glycosylation at Asn604 | adds modest, heterogeneous mass that can broaden or slightly raise the band above the unmodified core size |
| Alternative splice isoforms (1 and 2) | can yield an additional band of different apparent size depending on which isoform(s) are expressed and whether the antibody epitope is shared |
| Non-glycosylated bacterial or insect-cell recombinant standard | lacks the native N604 glycan and so runs lower than the ~95 kDa native/mammalian band |
| Situation | Likely cause | Next action |
|---|---|---|
| No band in lysate | TRPV1 is a multi-pass membrane protein embedded in the plasma and postsynaptic membrane, so it can resist extraction with insufficiently harsh lysis buffers | use a detergent-based lysis buffer (e.g., RIPA or 1% Triton/NP-40) and ensure thorough membrane solubilization before loading |
| Band higher than expected | the single N604 glycosylation site, or incomplete denaturation of the normally homotetrameric channel, can push apparent size above the 95 kDa monomer | boil samples fully in reducing/denaturing sample buffer and confirm with a deglycosylation control if a shift is suspected |
| Band lower than expected | use of a bacterially or non-mammalian expressed recombinant standard lacking the native N604 glycan | compare against a mammalian-cell-derived lysate control and expect recombinant standards to run below the ~95 kDa native band |
| Broad smear instead of sharp band | heterogeneous glycosylation at the single N-linked site (Asn604) produces microheterogeneity in apparent mass | treat lysate with PNGase F to collapse the smear into a single deglycosylated species for comparison |
| Multiple bands | co-expression of splice isoforms 1 and 2, or incomplete denaturation of the homotetrameric assembly, can generate extra bands | verify isoform identity by epitope mapping and ensure complete reduction/denaturation to rule out oligomeric carryover |
| Weak or no signal | TRPV1 is restricted to specific neuronal and postsynaptic/dendritic spine compartments, so signal can be weak in non-neuronal or unenriched whole-tissue lysates | use an enriched neuronal source (e.g., sensory ganglion tissue) or membrane-fraction enrichment before loading |
Experiment evidence
Western blot images showing TRPV1 band
A00128-4 · TRPV1
← swipe / scroll for more images →
Real WB data behind the band-size expectations in this section.
Sample controls for TRPV1 Western blot
🧪For positive controls for TRPV1 in Western blot, you can use a TRPV1-transfected overexpression cell line (e.g., HEK293 cells transiently expressing TRPV1), since no confirmed positive tissue or cell line is available from the Human Protein Atlas for this protein.
Positive control: TRPV1-transfected HEK293 cells
Negative control: non-transfected (parental) HEK293 cells
Loading controls: Run GAPDH and β-actin as loading controls alongside a total-protein stain (e.g., stain-free gel imaging, Ponceau S, or REVERT).
⚠️Feasibility: With no HPA expression data available and TRPV1 being a multi-pass membrane protein prone to aggregation, an overexpression/parental cell line pair is the most feasible control strategy, and lysates should avoid boiling to prevent membrane-protein aggregation.
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 |
|---|
Undetected expression · recommended negative controls
| Tissue | Cell type | Level | Evidence | Source |
|---|
Section 3
Advanced TRPV1 Western Blot Tips
Deeper troubleshooting and optimisation questions for TRPV1, answered from its protein features.
Why does TRPV1 run near its predicted 95 kDa mass?
TRPV1 has only one annotated glycosylation site and no disulfide bonds, so post-translational mass addition is minimal. The predicted mass of 95 kDa matches the empirically observed band at approximately 95 kDa, confirming that standard reducing SDS-PAGE resolves monomeric TRPV1 close to its calculated weight without a major shift from glycosylation or other modifications.
How do the two annotated TRPV1 isoforms affect blot appearance?
UniProt lists two TRPV1 isoforms generated by alternative splicing. An antibody raised against a shared region can detect both, producing a closely spaced doublet near 95 kDa, while an isoform-specific antibody yields a single band. Confirm which isoform your epitope targets before treating an extra band as degradation or nonspecific binding.
What phosphorylation sites should guide TRPV1 blot interpretation?
TRPV1 carries eight annotated modified residues, consistent with known PKC- and CaMKII-mediated phosphorylation involved in channel sensitization. Phosphorylation can produce minor mobility shifts or closely spaced bands. Treating lysates with a phosphatase before loading helps distinguish genuine phospho-shifted species from proteolytic fragments when the band pattern looks ambiguous.
How does N-glycosylation affect TRPV1 migration on blots?
TRPV1 has one annotated glycosylation site. PNGase F digestion of lysates prior to SDS-PAGE can confirm whether a higher apparent mass reflects glycosylation rather than isoform variation or aggregation, since deglycosylation should collapse the glycosylated fraction toward the core 95 kDa predicted mass.
What blocking buffer works best for TRPV1 detection?
As a multi-pass membrane protein concentrated in the cell membrane, postsynaptic membrane, and dendritic spines, TRPV1 lysates retain significant lipid and detergent content. Use 5% non-fat milk or BSA in TBST with thorough washing to limit background from residual membrane lipids, and avoid over-blocking, which can obscure signal from this comparatively low-abundance channel.
What transfer method to use for TRPV1 Western blot?
TRPV1 is a large, multi-pass transmembrane protein that assembles into a homotetramer, so wet transfer is preferred for efficiently moving this high-molecular-weight, hydrophobic membrane protein out of the gel. Extend transfer time and include SDS in the transfer buffer to improve elution of TRPV1 from the polyacrylamide matrix.
Why might TRPV1 blots show bands above 95 kDa?
TRPV1 forms a homotetramer and can also assemble with TRPV3 into a heteromeric channel. Incomplete denaturation of these membrane complexes can leave partially oligomeric species migrating above the 95 kDa monomer. Increasing SDS concentration and heating lysates more thoroughly before loading should resolve these higher-order bands into the monomer.
Boster reagents
Best TRPV1 Western Blot Antibodies
BosterBio's TRPV1 antibodies are among the best-performing WB antibodies on the market — well cited, thoroughly validated, and orthogonally cross-validated against negative tissues and complementary methods.
Real WB data
Anti-TRPV1 Antibody Picoband®
Cat # A00128-4
Our recommended anti-TRPV1 antibody is a top-performing, extensively cited reagent, rigorously validated and cross-checked against negative-tissue controls and orthogonal methods, delivering specific, reproducible Western blot detection of TRPV1.
Which to pick: Only one TRPV1 antibody is catalogued, A00128-4, which includes an authentic Western blot validation image (5-20% SDS-PAGE), making it the clear, ready-to-use choice for your TRPV1 blot.
Source: BosterBio TRPV1 gene-info card — filtered to Western-blot-capable antibodies; each card shows that product's actual WB validation figure.
References
- UniProt Consortium. UniProt entry Q8NER1.
- Human Protein Atlas. TRPV1 tissue expression.