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SENP3 / Sentrin-specific protease 3 · IHC design guide
Design Immunohistochemistry for SENP3
Plan chromogenic SENP3 IHC in paraffin sections and score nuclear and cytoplasmic staining (HPA tissue IHC). Adrenal glandular cells show high staining, while SENP3 was not detected in adipocytes (HPA tissue IHC).
Evidence assembled Oct 2026 · For research use; verify linked source records and product datasheet before use
SENP3 Immunohistochemistry Experimental Design Guide
Expected localisation, validated protocols, controls and antibodies — the at-a-glance facts below, then the full design guide.
Must know before staining
| Expected localisation | Nuclear and cytoplasmic tissue staining (HPA tissue IHC) | |
| Staining pattern | Nuclear and cytoplasmic staining in most tissues (HPA tissue IHC) | |
| Antigen retrieval | Tris-EDTA pH 9.0 HIER, 95–98 °C, 20 min (rule: nuclear antigen) | |
| Positive control | Adrenal gland+4 more · see all | |
| Negative control | Adipose tissue+4 more · see all |
Important caveats
Reasons your staining may differ from the expected pattern.
| Fixation | Keep paraffin-section fixation consistent between samples (standard IHC practice; not target-specific) | |
| Caveat | Staining shows low consistency with RNA levels (HPA tissue IHC) | |
| Regulation | Oxidative stress shifts nucleolar signal (UniProt) | |
| Isoform / epitope | No annotated isoforms or processing variants (UniProt) |
Section 1
Recommended SENP3 IHC & IF Protocols
Compare the catalog antibody’s IHC-P protocol with the published SENP3 staining conditions below (PMC10710392).
| Sample | Paraffin-embedded human breast carcinoma tissue; fixative not specified (datasheet A04474Y24) |
| Fixation | Image fixative and duration unreported (datasheet A04474Y24); verify before use. |
| Sectioning | 4–5 µm sections on charged slides (standard) |
| Deparaffinisation | Xylene, graded ethanol series to water (standard) |
| Antigen retrieval | Heat-induced epitope retrieval in Tris-EDTA buffer, pH 9.0, 20 min at 95–98 °C (standard rule: nuclear antigen) |
| Peroxidase block | 3% H2O2, 10 min, room temperature (standard) |
| Blocking | 10% normal serum of the secondary host, 30 min, room temperature (standard) |
| Primary antibody | Rabbit anti-SENP3, 1:50-1:200 (datasheet A04474Y24) |
| Primary incubation | Overnight at 4 °C (standard) |
| Detection | HRP-polymer secondary, DAB chromogen 5–10 min (standard) |
| Counterstain | Hematoxylin, blue, dehydrate and mount (standard) |
| Expected result | SENP3-positive staining in glandular cells of adrenal gland (HPA tissue IHC: High). HPA tissue profile: Nuclear and cytoplasmic expression in most tissues. No signal in the no-primary control. |
💡Decision noteStart with Tris-EDTA pH 9.0 retrieval at 95–98 °C for 20 min, consistent with SENP3’s nuclear localization (page retrieval rule; UniProt Q9H4L4).
Section 2
What Is the Expected SENP3 Staining Pattern?
SENP3 is mainly nucleolar, with nucleoplasmic localisation and lower cytoplasmic detection described by UniProt; HPA tissue IHC reports nuclear and cytoplasmic staining in most tissues (HPA subcellular; UniProt Q9H4L4; HPA tissue IHC). Adrenal glandular cells stain strongly, while several epithelial, neuronal and tubular cell groups stain at medium levels (HPA tissue IHC). HPA rates the tissue pattern Supported but reports low agreement with RNA expression (HPA tissue IHC).
| Distinct nuclear staining in adrenal glandular cells, sometimes with cytoplasmic colour. | This fits the High adrenal glandular cell signal and nuclear and cytoplasmic tissue pattern (HPA tissue IHC). Score the glandular cells and their compartments separately; HPA's reliability is Supported despite low agreement with RNA expression (HPA tissue IHC). |
| Nuclear staining in bronchial respiratory epithelium or kidney tubule cells at moderate intensity. | Both cell groups are reported at Medium intensity (HPA tissue IHC). A weaker result than adrenal glandular cells can therefore be plausible; compare the named cells rather than assigning one intensity to every cell in the section (HPA tissue IHC). |
| A sharp membrane rim or predominantly extracellular deposit with little nuclear staining. | Treat this as a suspect pattern: SENP3 has no transmembrane segment and is assigned to nuclear, nucleolar, nucleoplasmic and cytoplasmic locations (UniProt Q9H4L4; HPA subcellular). Check tissue morphology and staining controls before calling it SENP3 (general IHC practice). |
| Strong colour in adipocytes or alveolar cells while the expected positive cells are faint. | HPA reports SENP3 as Not detected in those cell groups (HPA tissue IHC). Consider antibody cross-reactivity or endogenous chromogenic detection activity, then compare negative controls and a known-positive cell group; the pattern alone does not identify the cause (general IHC practice). |
| Diffuse colour across nuclei, cytoplasm and tissue spaces, or no signal in adrenal glandular cells. | Diffuse colour obscures the reported cellular pattern; inspect controls for nonspecific staining or detection background (HPA tissue IHC; general IHC practice). If adrenal glandular cells are blank, first check section quality, antibody application and detection controls before interpreting a biological absence (HPA tissue IHC; general IHC practice). |
💡Expected SENP3 appearanceCall a positive IHC result when adrenal glandular cells show clear nuclear staining, with possible cytoplasmic signal, at the reported High level; isolated membrane rims or widespread extracellular colour are suspect because the reported pattern is nuclear and cytoplasmic and SENP3 lacks a transmembrane segment (HPA tissue IHC; UniProt Q9H4L4).
| Cell group and tissue | Use the named cell group as the comparison unit: adrenal glandular cells are High, while hepatocytes, bronchial respiratory epithelial cells and kidney tubule cells are Medium (HPA tissue IHC). A whole-section average can hide these differences (general IHC practice). |
| Compartment and redox state | SENP3 is reported in nucleoli and nucleoplasm and can redistribute between them during mild oxidative stress (UniProt Q9H4L4; PubMed:19680224). This supports assessing nuclear distribution, but a paraffin IHC pattern alone does not establish the tissue's oxidative state (general IHC interpretation). |
| Evidence strength | HPA labels tissue IHC Supported but notes low consistency between antibody staining and RNA expression (HPA tissue IHC). Treat its listed positive and undetected cell groups as observed staining references, not guarantees for every specimen (HPA tissue IHC; general IHC interpretation). |
| Antibody validation | HPA060290 has Supported IHC and ICC status in the supplied antibody record (HPA antibodies). This supports using its observed pattern as a reference; it does not establish a dilution, retrieval condition or target-specific fixation response (HPA antibodies). |
| Topology and processing | UniProt annotates no transmembrane segment, signal peptide or propeptide, and a chain spanning residues 1–574 (UniProt Q9H4L4). These annotations support skepticism about isolated surface or extracellular staining but do not predict an antigen retrieval requirement (UniProt Q9H4L4). |
| IF/ICC Q: What distribution should be expected? | A: Mainly nucleoli, with additional nucleoplasmic signal in the HPA ICC-IF images (HPA subcellular). That finer localisation can inform interpretation; tissue IHC is described more broadly as nuclear and cytoplasmic (HPA tissue IHC). |
| Situation | Likely cause | Next action |
|---|---|---|
| No colour in adrenal glandular cells. | The expected High signal is absent; the staining run or specimen may have failed, though the image alone cannot assign a cause (HPA tissue IHC; general IHC practice). | Review section integrity, antibody application, detection reagents and a run-level positive control before scoring the cells negative (general IHC practice). |
| Weak signal in bronchial epithelium or kidney tubules. | These groups are reported at Medium, so a weaker signal than adrenal glandular cells can fit the reference pattern (HPA tissue IHC). | Assess the named cells against a positive control and retain the observed intensity in the score; investigate only if the run controls also underperform (HPA tissue IHC; general IHC practice). |
| Colour is widespread outside cell boundaries. | A diffuse deposit does not match HPA's cell-associated nuclear and cytoplasmic description; nonspecific or chromogenic detection background is possible (HPA tissue IHC; general IHC practice). | Compare a reagent-matched negative control and inspect the distribution under higher magnification before changing general blocking, washing or detection settings (general IHC practice). |
| Adipocytes or alveolar cells stain strongly. | HPA lists these cell groups as Not detected; cross-reactivity or endogenous detection activity is possible, but neither is proven by the slide (HPA tissue IHC; general IHC practice). | Check the same run's negative controls and known-positive cells, then review antibody specificity and chromogen background if the discordance persists (general IHC practice). |
| Only membrane-like staining is evident. | This conflicts with the reported intracellular distribution and absence of a transmembrane segment (HPA subcellular; HPA tissue IHC; UniProt Q9H4L4). | Verify that the colour follows cells rather than section edges or deposits; compare controls before treating it as target-specific (general IHC practice). |
| Nuclear pattern differs from an ICC-IF image. | HPA ICC-IF resolves nucleoli and nucleoplasm, whereas its tissue IHC summary reports nuclear and cytoplasmic expression (HPA subcellular; HPA tissue IHC). | Score the compartment visible in the paraffin section and note any resolvable nucleolar detail; avoid inferring oxidative stress from this difference alone (UniProt Q9H4L4; general IHC interpretation). |
Experiment evidence
IHC & IF images showing SENP3 staining
A04474Y24 · IHCImmunohistochemistry (IHC) analyzes of SENP3 (Y24) pAb in paraffin-embedded human breast carcinoma tissue at 1:100.
HPA · Cerebral cortexHuman Protein Atlas IHC, Cerebral cortex. Source: https://www.proteinatlas.org/ENSG00000161956-SENP3/tissue/cerebral+cortex#imid_16509431
HPA · ColonHuman Protein Atlas IHC, Colon. Source: https://www.proteinatlas.org/ENSG00000161956-SENP3/tissue/colon#imid_16509357
HPA · LiverHuman Protein Atlas IHC, Liver. Source: https://www.proteinatlas.org/ENSG00000161956-SENP3/tissue/liver#imid_16509358
HPA · KidneyHuman Protein Atlas IHC, Kidney. Source: https://www.proteinatlas.org/ENSG00000161956-SENP3/tissue/kidney#imid_16509359
HPA · ICC-IF HEK293Human Protein Atlas immunofluorescence, HEK293, antibody HPA060290; green = SENP3, blue = nucleus, red = microtubules.
HPA · ICC-IF HEK293Human Protein Atlas immunofluorescence, HEK293, antibody HPA060290; green = SENP3, blue = nucleus, red = microtubules.
← swipe / scroll for more images →
Real IHC / IF data behind the staining-pattern expectations in this section.
Sample controls for SENP3 IHC & IF
🧪Run adrenal gland first: glandular cells should show SENP3 staining (HPA: High in adrenal gland glandular cells). Use adipose tissue adipocytes as a negative comparator (HPA: Not detected in adipocytes); on the adrenal slide, cells showing counterstain without specific nucleolar or nucleoplasmic signal are candidate internal negatives, although HPA does not identify a definitively negative adrenal cell type (HPA: adrenal gland glandular cells High; HPA: nucleoli and nucleoplasm supported).
Positive control tissue: Adrenal gland (Glandular cells, HPA High)
Negative control tissue: Adipose tissue (HPA Not detected)
ICC-IF cell lines (HPA subcellular resource): HPA ICC-IF images show SENP3 in HEK293, MCF-7, U2OS, RPTEC/TERT1, hTERT-RPE1 (serum starved), with annotated localisation: Nucleoli (supported) (HPA subcellular).
Technical controls: Include a no-primary, secondary-only control, a host- and isotype-matched nonimmune IgG control, and, where available, a SENP3-knockout biological control or validated immunizing-peptide competition control (standard IHC specificity practice). For chromogenic adrenal IHC, block endogenous peroxidase and inspect background or pigment; for IF, check autofluorescence with an unstained or secondary-only specimen (standard IHC/IF practice).
⚠️Feasibility: A target-specific fixation window or fixation effect is unreported; the selected A04474Y24 paraffin-section caption gives 1:100 but leaves the fixative unreported (caption: paraffin-embedded breast carcinoma, 1:100; fixative not stated). SENP3 retrieval dependence is unreported, so optimize antigen retrieval empirically (standard IHC practice). Frozen-section suitability and whether IF is easier than IHC are unreported; IF/ICC can assess the supported nucleolar and nucleoplasmic localization, while adrenal-specific artifacts are unreported and background should be checked on the control slide (HPA: nucleoli and nucleoplasm supported; standard IHC practice).
HPA tissue IHC evidence for SENP3
Comprehensive Human Protein Atlas IHC scoring per tissue (reliability: Supported — Low consistency between antibody staining and RNA expression data.). 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 |
|---|---|---|---|---|
| Adrenal gland | Glandular cells | High | Protein (IHC) | HPA → |
| Bronchus | Respiratory epithelial cells | Medium | Protein (IHC) | HPA → |
| Caudate | Neuronal cells | Medium | Protein (IHC) | HPA → |
| Cervix | Glandular cells | Medium | Protein (IHC) | HPA → |
| Esophagus | Squamous epithelial cells | Medium | Protein (IHC) | HPA → |
Undetected expression · recommended negative controls
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Adipose tissue | Adipocytes | Not detected | Protein (IHC) | HPA → |
| Bone marrow | Hematopoietic cells | Not detected | Protein (IHC) | HPA → |
| Lung | Alveolar cells | Not detected | Protein (IHC) | HPA → |
| Lymph node | Germinal center cells | Not detected | Protein (IHC) | HPA → |
| Ovary | Follicle cells | Not detected | Protein (IHC) | HPA → |
Section 3
Advanced SENP3 IHC Tips
Troubleshoot SENP3 staining in paraffin sections by checking retrieval, compartment-specific signal, controls and scoring before interpreting chromogenic IHC.
How should I retrieve SENP3 in paraffin sections when nuclear staining is weak?
Start with Tris-EDTA pH 9.0 heat-induced retrieval at 95–98 °C for 20 min (page retrieval rule: nuclear antigen). Test the catalog antibody at 1:100 on a control section processed with the study sections (selected-SKU tissue-IHC caption: A04474Y24; standard IHC practice). Compare nucleolar and nucleoplasmic staining while checking that tissue architecture and the counterstain remain readable (UniProt: subcellular location; standard IHC practice). If staining remains weak, vary heating time on adjacent sections before changing buffer chemistry (standard IHC practice). Record retrieval conditions for each batch so differences in nuclear signal can be distinguished from biological variation (standard IHC practice).
Could fixation explain inconsistent SENP3 staining between paraffin blocks?
The selected image documents paraffin-embedded human breast carcinoma stained at 1:100, but its fixative is unreported (selected-SKU tissue-IHC caption: A04474Y24). Target-specific SENP3 sensitivity to fixation is therefore unknown; the supplied evidence provides no fixation comparison (selected-SKU tissue-IHC caption: A04474Y24). For a controlled comparison, stain adjacent sections from blocks with documented fixation histories in the same run (standard IHC practice). Keep section thickness, Tris-EDTA pH 9.0 retrieval and detection conditions consistent while comparing nuclear signal and morphology (page retrieval rule; standard IHC practice). Do not interpret a block-to-block difference as altered SENP3 expression until processing differences have been assessed (standard IHC practice).
Should SENP3 staining be nucleolar, nucleoplasmic or cytoplasmic?
Give the greatest weight to nuclear staining: SENP3 is annotated in nucleoli and nucleoplasm, and HPA supports both locations in cell imaging (UniProt: subcellular location; HPA subcellular). HPA tissue IHC also reports nuclear and cytoplasmic expression in most tissues, so cytoplasmic signal requires comparison with nuclear staining and controls (HPA tissue IHC). SENP3 can redistribute from nucleoli to nucleoplasm during mild oxidative stress, making a changed intranuclear pattern biologically plausible (UniProt: PubMed 19680224). Score nucleolar, other nuclear and cytoplasmic staining separately on intact cells rather than merging them into one intensity grade (standard IHC practice). Check adjacent sections under the same retrieval and detection conditions before attributing a compartment shift to the specimen (standard IHC practice).
How can epitope uncertainty affect SENP3 IHC interpretation?
The record annotates one 1–574 SENP3 chain and 0 isoforms, but supplies no antibody epitope coordinates (UniProt: processing and isoforms; supplied antibody evidence). Its listed modifications include phosphoserines at positions 54, 73, 75 and 169 and phosphothreonine at 176 (UniProt: modified residues). These annotations alone cannot show whether a modification or paraffin processing changes binding by this antibody (UniProt: modified residues; supplied antibody evidence). Compare staining with an independently validated SENP3 antibody, if available, and retain matched negative controls when judging specificity (standard IHC practice). Document the antibody identifier and retrieval conditions so any disagreement can be investigated without assuming an unreported isoform or epitope (standard IHC practice).
How can I check SENP3 localisation by IF alongside paraffin IHC?
For a separate IF experiment, multiplex SENP3 with a marker validated for the expected cell type and a nuclear counterstain (standard IF practice). HPA cell imaging places SENP3 mainly in nucleoli, with additional nucleoplasmic signal, providing compartments to inspect in the IF image (HPA subcellular). Select a far-red fluorophore when specimen autofluorescence interferes with shorter wavelengths, and include unstained and single-label controls (standard IF practice). SENP3 has no annotated transmembrane segment and its expected signal is intracellular, so permeabilisation must allow antibody access across the plasma and nuclear membranes (UniProt: topology and subcellular location; standard IF practice). Optimise permeabilisation on matched samples because the supplied evidence gives no IF condition for the catalog antibody (supplied antibody evidence).
What should I change when SENP3 chromogenic staining looks diffuse?
Inspect a no-primary control first to assess signal from the chromogenic detection system, and examine intact nuclei before adjusting antibody concentration (standard IHC practice). Endogenous peroxidase can produce DAB signal, so include a peroxidase-blocking step according to the detection system instructions (standard IHC practice). The selected paraffin image reports a 1:100 antibody dilution; use that documented point for comparison rather than assuming an unreported dilution was validated (selected-SKU tissue-IHC caption: A04474Y24). Then compare matched sections for tissue-edge staining, precipitate and signal over necrotic areas while keeping retrieval at Tris-EDTA pH 9.0 consistent (page retrieval rule; standard IHC practice). A credible pattern should be evaluated against SENP3’s documented nuclear locations (UniProt: subcellular location; HPA subcellular).
How should I quantify SENP3 when nuclear and cytoplasmic staining differ? ⚠ ANSWER MARKED FOR VERIFICATION
Define the cell population and exclude damaged tissue before scoring, then analyse nuclear and cytoplasmic staining as separate compartments (standard IHC practice). For each compartment, report the percentage of positive viable cells and an H-score using intensity grades 0–3 multiplied by each grade’s cell percentage, yielding 0–300 (standard IHC practice). Normalise counts to the number of viable cells assessed, or report positive-cell density per mm² when sampling tissue area (standard IHC practice). Keep retrieval, detection and image thresholds consistent across groups (standard IHC practice). Record nucleolar and nucleoplasmic patterns separately when relevant, because SENP3 occupies both and can redistribute between them (UniProt: subcellular location and PubMed 19680224).
How do I distinguish genuine SENP3 staining from artefact?
Treat staining in intact nucleoli or nucleoplasm as anatomically plausible, while assessing cytoplasmic signal against nuclear staining and controls (UniProt: subcellular location; HPA tissue IHC; standard IHC practice). Compare the cell type as well as the tissue: HPA reports medium staining in bronchial respiratory epithelium but no detection in lung alveolar cells (HPA tissue IHC). Discount staining confined to section edges, necrotic regions or the no-primary control, and investigate possible endogenous peroxidase signal before calling cells positive (standard IHC practice). HPA rates its tissue IHC evidence Supported while reporting low agreement between staining and RNA expression (HPA tissue IHC). Interpret an apparent change alongside matched controls and compartment-specific scoring rather than treating stain intensity alone as proof of altered SENP3 abundance (standard IHC practice).
Boster reagents
Best SENP3 / Sentrin-specific protease 3 IHC Antibodies
The catalog provides SENP3 IHC data from paraffin-embedded human breast carcinoma (A04474Y24 image caption). Both antibodies list human, mouse, and rat reactivity; neither lists IF/ICC (catalog applications/reactivity).
Real IHC data
Anti-SENP3 (Y24) Antibody
Cat # A04474Y24
A04474Y24 is the only rendered card; its IHC image shows paraffin-embedded human breast carcinoma at 1:100 (A04474Y24 image caption). Its listed species are human, mouse, and rat, but the supplied image demonstrates human tissue only (A04474Y24 reactivity and image caption).
Which to pick: For paraffin-section IHC, choose A04474Y24: its own caption documents staining in human breast carcinoma, and the fixative is unreported (A04474Y24 image caption). Neither A04474Y24 nor A04474-1 lists IF/ICC, so neither has catalog support for that application (catalog applications). For mouse or rat IHC, either SKU lists reactivity, but only A04474Y24 has a supplied tissue image, and that image is human (catalog reactivity and image alts).
Each figure is that product's own IHC / IF validation image from its datasheet.
References
- UniProt Consortium. UniProt entry Q9H4L4 (SENP3_HUMAN, Sentrin-specific protease 3).
- Human Protein Atlas. SENP3 tissue IHC expression (reliability: Supported).
- Human Protein Atlas. SENP3 subcellular location (ICC-IF): Mainly localized to the nucleoli. In addition localized to the nucleoplasm..
- Human Protein Atlas. SENP3 antibody validation summary (1 antibodies).
- SUMOylation and SENP3 regulate STAT3 activation in head and neck cancer. Oncogene 2016 — PMC5116054.
- Myeloid SENP3 deficiency protects mice from diet and age-induced obesity via regulation of YAP1 SUMOylation. Cellular and molecular life sciences : CMLS 2023 — PMC10710392.
- Nuclear Nrf2 Activity in Laryngeal Carcinoma is Regulated by SENP3 After Cisplatin-Induced Reactive Oxygen Species Stress. Journal of Cancer 2019 — PMC6603410.
- De-SUMOylation of FOXC2 by SENP3 promotes the epithelial-mesenchymal transition in gastric cancer cells. Oncotarget 2014 — PMC4196186.
- PubMed PMID:10806345 — UniProt-cited evidence.
- PubMed PMID:11230166 — UniProt-cited evidence.
- PubMed PMID:17974005 — UniProt-cited evidence.
Immunohistochemistry protocol sheet for SENP3 (Sentrin-specific protease 3). Expected localisation Nuclear and cytoplasmic tissue staining (HPA tissue IHC). Antigen retrieval: Tris-EDTA pH 9.0 HIER, 95–98 °C, 20 min (rule: nuclear antigen). Validated IHC antibody: A04474Y24 at 1:50-1:200 (the product's own IHC validation image is shown). Controls (HPA): positive Adrenal gland (Glandular cells); negative Adipose tissue. IHC-P workflow on paraffin sections; fixative unspecified. Protocol steps: 1. Sample: Paraffin-embedded human breast carcinoma tissue; fixative not specified (datasheet A04474Y24); 2. Fixation: Image fixative and duration unreported (datasheet A04474Y24); verify before use.; 3. Sectioning: 4–5 µm sections on charged slides (standard); 4. Deparaffinisation: Xylene, graded ethanol series to water (standard); 5. Antigen retrieval: Heat-induced epitope retrieval in Tris-EDTA buffer, pH 9.0 , 20 min at 95–98 °C…; 6. Peroxidase block: 3% H2O2, 10 min , room temperature (standard); 7. Blocking: 10% normal serum of the secondary host, 30 min , room temperature (standard); 8. Primary antibody: Rabbit anti-SENP3, 1:50-1:200 (datasheet A04474Y24); 9. Primary incubation: Overnight at 4 °C (standard). Watch for: Fixation: Keep paraffin-section fixation consistent between samples (standard IHC practice; not target-specific); Caveat: Staining shows low consistency with RNA levels (HPA tissue IHC); Isoform / epitope: No annotated isoforms or processing variants (UniProt); Regulation: Oxidative stress shifts nucleolar signal (UniProt). Evidence: UniProt Q9H4L4, HPA tissue IHC · Supported, HPA ICC-IF · Mainly localized to the nucleoli. In addition localized to the…, Datasheet A04474Y24, PMC10710392. QR code links to https://www.bosterbio.com/bosterbio-gene-info-cards/SENP3/immunohistochemistry-ihc-guide.