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NEDD4 / E3 ubiquitin-protein ligase NEDD4 · IHC design guide
Design Immunohistochemistry for NEDD4
Plan paraffin-section NEDD4 IHC around the general cytoplasmic tissue pattern (HPA tissue IHC). This guide highlights cell-type variation when choosing controls and interpreting chromogenic staining (HPA tissue IHC).
Evidence assembled Oct 2026 · For research use; verify linked source records and product datasheet before use
NEDD4 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 | Cytoplasmic tissue staining observed; nuclear location reported (HPA tissue IHC; UniProt) | |
| Staining pattern | General cytoplasmic staining across tissue cell types (HPA tissue IHC) | |
| Antigen retrieval | EDTA pH 8.0 HIER, heat-mediated (datasheet A00984-3) | |
| Positive control | Skin+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 tissue fixation consistent across samples (standard IHC practice; not target-specific) | |
| Caveat | Glandular staining ranges from high to undetected by organ (HPA tissue IHC) | |
| Regulation | Expression regulation is not specified (UniProt) | |
| Isoform / epitope | Four isoforms; check whether the epitope is shared (UniProt) |
Section 1
Recommended NEDD4 IHC & IF Protocols
The catalog antibody protocol uses EDTA pH 8.0 retrieval (datasheet A00984-3). Three published NEDD4 IHC protocols provide tissue-specific starting conditions (PMC6923956; PMC12820133; PMC5817799).
| Sample | Paraffin-embedded rat brain tissue; fixative not specified (datasheet A00984-3) |
| Fixation | Image fixative and duration unreported (datasheet A00984-3); verify before use. |
| Sectioning | 4–5 µm sections on charged slides (standard) |
| Deparaffinisation | Xylene, graded ethanol series to water (standard) |
| Antigen retrieval | Heat retrieval: EDTA pH 8.0 (datasheet A00984-3); 20 min, 95–100 °C (standard) |
| Peroxidase block | 3% H2O2, 10 min, room temperature (standard) |
| Blocking | 10% goat serum (datasheet A00984-3) |
| Primary antibody | Rabbit anti-NEDD4, 2-5 μg/ml (datasheet A00984-3) |
| Primary incubation | Overnight at 4 °C (datasheet A00984-3) |
| Detection | HRP-conjugated secondary, DAB chromogen (datasheet A00984-3) |
| Counterstain | Hematoxylin, blue, dehydrate and mount (standard) |
| Expected result | NEDD4-positive staining in fibroblasts of skin (HPA tissue IHC: Medium). HPA tissue profile: General cytoplasmic expression. No signal in the no-primary control. |
💡Decision noteStart with heat-mediated EDTA pH 8.0 for the catalog antibody (datasheet A00984-3); evaluate citrate pH 6.0 if adapting a published protocol (PMC6923956; PMC12820133; PMC5817799).
Section 2
What Is the Expected NEDD4 Staining Pattern?
NEDD4 should stain predominantly in the cytoplasm, with possible nuclear staining; it has no transmembrane segment (UniProt P46934: localization and topology). Thyroid glandular cells and vaginal squamous epithelial cells are strong tissue examples (HPA: High in both). Interpret intensity by cell type: HPA describes general cytoplasmic expression, but its tissue IHC rating is Approved with medium consistency between staining and RNA data (HPA: tissue IHC).
| Cytoplasmic staining in thyroid glandular cells or vaginal squamous epithelial cells, with clear cellular boundaries. | This fits the strongest listed tissue examples (HPA: High in both cell types) and NEDD4's predominant cytoplasmic localization (UniProt P46934: subcellular location). Some nuclear signal can be plausible (UniProt P46934: nucleus); evaluate its distribution alongside the cytoplasmic pattern. |
| Signal is exclusively extracellular, or appears as a continuous outline around every cell while cytoplasm is blank. | Treat this as a compartment mismatch requiring investigation: NEDD4 is predominantly cytoplasmic and has no transmembrane segment (UniProt P46934: localization and topology). Membrane recruitment is possible (UniProt P46934: GRB10 interaction), so a localized membrane signal alone does not prove an artefact. |
| The strongest staining is in adipocytes, liver cholangiocytes, or lymph node germinal center cells. | These cell types were not detected in the supplied tissue survey (HPA: Not detected in each). Check for cross-reactivity or endogenous detection activity before calling them positive. The HPA result is an observed pattern, not proof that every specimen of those cell types must be negative. |
| Brown signal coats tissue broadly, with little distinction between cells, compartments, and blank areas. | This is diffuse background rather than a convincing cellular pattern (general IHC practice). Assess blocking, washing, secondary or detection reagents, and the no-primary control; HPA's general cytoplasmic profile does not validate uniform staining across a section (HPA: tissue IHC). |
| No specific signal appears in thyroid glandular cells or vaginal squamous epithelial cells. | A negative result in these listed High examples warrants a workflow check (HPA: High in both). Verify section integrity, retrieval and detection controls, then review the antibody's IHC validation. A failed run cannot establish that NEDD4 is absent from the specimen (general IHC practice). |
💡Expected NEDD4 appearanceCall positive when thyroid glandular or vaginal squamous epithelial cells show strong, mainly cytoplasmic staining (HPA: High; general cytoplasmic expression), allowing some nuclear signal (UniProt P46934: localization); uniform extracellular color or equally strong staining in HPA Not detected cell types is suspect (HPA: tissue IHC).
| Compartment and topology | Predominant cytoplasmic signal, possible nuclear signal, and context-dependent plasma membrane recruitment fit the protein record (UniProt P46934: localization; no transmembrane segment). Do not require a membrane rim to score tissue IHC positive. |
| Choice of tissue and cell type | Use the named cells, rather than an entire organ, to judge a pattern: thyroid glandular cells and vaginal squamous epithelial cells are High; skin fibroblasts are Medium (HPA: tissue IHC). Adipocytes and liver cholangiocytes are listed as Not detected (HPA: tissue IHC). |
| Antibody evidence | HPA lists IHC Approved for HPA039883, CAB001991, and CAB072833; HPA046793 has ICC Supported but no listed IHC status (HPA: antibody validation). Approved is accompanied by medium staining–RNA consistency for the tissue profile (HPA: tissue IHC), so compare the observed cell type and compartment before scoring. |
| Isoforms and epitope coverage | UniProt lists four NEDD4 isoforms and a WW-domain region plus a HECT domain (UniProt P46934: isoforms and domains). The supplied evidence gives no antibody epitope or isoform coverage, so an unexpected pattern cannot be assigned to a particular isoform from these records. |
| IF/ICC expectation? | For IF/ICC, HPA supports nucleoplasm and cytosol localization and marks additional plasma membrane localization uncertain (HPA: subcellular ICC-IF). This is an interpretation cue for that separate application, not an IHC staining requirement; the supplied record gives no IF/ICC protocol. |
| Situation | Likely cause | Next action |
|---|---|---|
| Known High tissue is blank. | The run may have failed at retrieval, primary incubation, or detection (general IHC practice); HPA reports High staining in thyroid glandular and vaginal squamous epithelial cells (HPA: tissue IHC). | Check an on-run positive section and detection controls, then review the catalog antibody's IHC instructions before interpreting the specimen as negative (general IHC practice). |
| All tissue structures and empty spaces look brown. | Diffuse chromogen or detection background can obscure a cellular signal (general IHC practice); it does not match HPA's general cytoplasmic profile (HPA: tissue IHC). | Inspect a no-primary control, wash and block conditions, and detection reagent exposure; repeat scoring only when cells can be distinguished (general IHC practice). |
| Unexpected cells stain as strongly as the positive comparator. | Cross-reactivity or endogenous detection activity is possible (general IHC practice), especially when the cells are listed as Not detected (HPA: adipocytes, cholangiocytes, germinal center cells). | Compare matched cell types on the same run and review a no-primary control; treat discordance as unresolved until antibody specificity and detection background are assessed (general IHC practice). |
| Only nuclei stain in tissue IHC. | Nuclear localization is possible, but exclusively nuclear staining departs from the predominant cytoplasmic distribution (UniProt P46934: localization; HPA: general cytoplasmic expression). | Recheck cytoplasmic signal in a High reference cell type and inspect controls; report the nuclear-only pattern as discordant unless independently supported. |
| A sharp membrane rim dominates the section. | NEDD4 can be recruited to the plasma membrane, but its predominant location is cytoplasmic and it lacks a transmembrane segment (UniProt P46934: localization and topology). | Look for accompanying cytoplasmic staining and cell-type agreement; investigate a uniform rim across unrelated cells as possible background (general IHC practice). |
| IF/ICC shows cytosolic and nuclear fluorescence, while tissue IHC looks mainly cytoplasmic. | The observations can coexist: HPA supports nucleoplasm and cytosol in ICC-IF, while its tissue IHC profile is generally cytoplasmic (HPA: subcellular ICC-IF; tissue IHC). | Interpret each application against its own HPA evidence; use the IF/ICC guide for that assay's controls and settings, and do not impose an ICC-IF nuclear pattern on IHC. |
Experiment evidence
IHC & IF images showing NEDD4 staining
A00984-3 · IHCIHC analysis of NEDD4 using anti-NEDD4 antibody (A00984-3). NEDD4 was detected in a paraffin-embedded section of rat brain tissue. Heat medi
A00984-3 · IHCIHC analysis of NEDD4 using anti-NEDD4 antibody (A00984-3). NEDD4 was detected in a paraffin-embedded section of human colon adenocarcinoma
A00984-3 · IFIF analysis of NEDD4 using anti-NEDD4 antibody (A00984-3). NEDD4 was detected in an immunocytochemical section of A549 cells. Enzyme antigen
M00984 · IHCIHC analysis of NEDD4 using anti-NEDD4 antibody (M00984). NEDD4 was detected in a paraffin-embedded section of human bladder cancer tissue.
M00984 · IHCIHC analysis of NEDD4 using anti-NEDD4 antibody (M00984). NEDD4 was detected in a paraffin-embedded section of human pancreas cancer tissue.
HPA · Cerebral cortexHuman Protein Atlas IHC, Cerebral cortex. Source: https://www.proteinatlas.org/ENSG00000069869-NEDD4/tissue/cerebral+cortex#imid_11025551
HPA · ColonHuman Protein Atlas IHC, Colon. Source: https://www.proteinatlas.org/ENSG00000069869-NEDD4/tissue/colon#imid_11025461
HPA · LiverHuman Protein Atlas IHC, Liver. Source: https://www.proteinatlas.org/ENSG00000069869-NEDD4/tissue/liver#imid_11025470
HPA · KidneyHuman Protein Atlas IHC, Kidney. Source: https://www.proteinatlas.org/ENSG00000069869-NEDD4/tissue/kidney#imid_11025463
HPA · ICC-IF A-549Human Protein Atlas immunofluorescence, A-549, antibody HPA046793; green = NEDD4, blue = nucleus, red = microtubules.
HPA · ICC-IF A-549Human Protein Atlas immunofluorescence, A-549, antibody HPA046793; green = NEDD4, blue = nucleus, red = microtubules.
← swipe / scroll for more images →
Real IHC / IF data behind the staining-pattern expectations in this section.
Sample controls for NEDD4 IHC & IF
🧪Run thyroid gland first: glandular cells should stain for NEDD4 (HPA: High in thyroid gland glandular cells). Use duodenum glandular cells as a negative comparison (HPA: Not detected); on the thyroid slide, treat cells without specific staining as internal background references, without assuming a particular cell type is NEDD4-negative.
Positive control tissue: Skin (Fibroblasts, HPA Medium)
Negative control tissue: Adipose tissue (HPA Not detected)
ICC-IF cell lines (HPA subcellular resource): HPA ICC-IF images show NEDD4 in A-549, U-251MG, U2OS, KOLF2.1J, with annotated localisation: Nucleoplasm (supported), Cytosol (supported) (HPA subcellular).
Technical controls: Include no-primary (secondary-only) and matched rabbit isotype controls, plus NEDD4-knockout material as a biological negative (selected-SKU caption: rabbit primary antibody). Quench endogenous peroxidase before HRP/DAB detection in thyroid tissue, where endogenous enzyme activity can create background (standard IHC practice).
⚠️Feasibility: A target-specific fixation window or fixation effect is unreported, and the selected-SKU paraffin-section caption does not state the fixative (selected-SKU caption: fixative unreported). The caption uses heat retrieval in EDTA at pH 8.0 for rat brain, but does not establish that thyroid staining depends on that retrieval condition (selected-SKU caption: EDTA pH 8.0); whether frozen sections or IF are easier is unreported. In thyroid tissue, check for endogenous peroxidase background when interpreting DAB staining (standard IHC practice).
HPA tissue IHC evidence for NEDD4
Comprehensive Human Protein Atlas IHC scoring per tissue (reliability: Approved — Medium 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 |
|---|---|---|---|---|
| Skin | Fibroblasts | Medium | Protein (IHC) | HPA → |
| Thyroid gland | Glandular cells | High | Protein (IHC) | HPA → |
| Vagina | Squamous epithelial cells | High | Protein (IHC) | HPA → |
| Adrenal gland | Glandular cells | Medium | Protein (IHC) | HPA → |
| Appendix | Glandular cells | Medium | Protein (IHC) | HPA → |
Undetected expression · recommended negative controls
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Adipose tissue | Adipocytes | Not detected | Protein (IHC) | HPA → |
| Duodenum | Glandular cells | Not detected | Protein (IHC) | HPA → |
| Liver | Cholangiocytes | Not detected | Protein (IHC) | HPA → |
| Lymph node | Germinal center cells | Not detected | Protein (IHC) | HPA → |
| Ovary | Ovarian stroma cells | Not detected | Protein (IHC) | HPA → |
Section 3
Advanced NEDD4 IHC Tips
Use compartment-aware controls and the catalog antibody’s documented paraffin-section conditions to troubleshoot NEDD4 chromogenic IHC.
Which retrieval conditions should I try first for NEDD4 in paraffin sections?
Start with heat-mediated retrieval in EDTA at pH 8.0 for paraffin sections (datasheet A00984-3). The selected image used this retrieval, followed by 10% goat serum blocking and 2 μg/ml primary antibody overnight at 4°C (caption A00984-3). If staining is weak, compare a carefully controlled alternative retrieval condition on serial sections while keeping antibody concentration and detection constant (standard IHC practice). Excessive heating can damage morphology or increase background, so judge each condition against tissue preservation, cell-specific staining and a no-primary control (standard IHC practice).
How should I troubleshoot weak staining when the tissue fixation history is uncertain?
The selected paraffin-section caption does not state a fixative, so NEDD4-specific fixation sensitivity is unknown for this antibody (caption A00984-3). Record the fixative and fixation duration for each specimen, then compare similarly processed sections before attributing a weak result to biology (standard IHC practice). Run the documented EDTA pH 8.0 retrieval and 2 μg/ml primary condition on a reference section alongside the problem sample (caption A00984-3). If fixation histories differ, assess morphology and background as well as signal, and report the processing difference rather than assigning a NEDD4-specific fixation effect (standard IHC practice).
Should NEDD4 staining be cytoplasmic, nuclear or membrane-associated?
Expect predominantly cytoplasmic staining, with possible nuclear localisation (UniProt P46934 subcellular location); HPA describes general cytoplasmic tissue expression (HPA tissue IHC). Nuclear signal can be plausible because supported nucleoplasmic and cytosolic locations are reported in cells (HPA subcellular). Plasma membrane signal needs context: NEDD4 has no transmembrane segment, and GRB10 can recruit it to the plasma membrane (UniProt P46934 topology and subcellular location). Compare compartments within intact cells and across serial sections; a uniform rim at cut edges or a diffuse stain outside cells warrants background and morphology checks before interpretation (standard IHC practice).
Could isoforms or epitope masking explain a discordant NEDD4 IHC result?
NEDD4 has 4 annotated isoforms, so isoform coverage depends on the antibody’s actual epitope, which is not specified here (UniProt P46934 isoforms; caption A00984-3). The protein contains 4 WW domains and a HECT domain spanning residues 984–1318 (UniProt P46934 domains). Several phosphorylation sites are annotated, including residues 576 and 648, but their effects on this antibody’s staining are unestablished (UniProt P46934 modified residues; caption A00984-3). If results disagree with another assay, obtain the immunogen or epitope information, compare isoform sequences, and evaluate staining in matched tissue sections under the documented retrieval condition (standard IHC practice; datasheet A00984-3).
How can IF help check a disputed NEDD4 compartment in tissue?
Use IF as a separate localisation check and multiplex NEDD4 with a marker identifying the cell type under study (standard IF practice). Choose a fluorophore channel away from the section’s strongest autofluorescence, and include single-label and no-primary controls to assess bleed-through and background (standard IF practice). NEDD4 lacks a transmembrane segment and has supported cytosolic and nucleoplasmic locations, so permeabilisation must allow access to the compartment containing the antibody epitope (UniProt P46934 topology; HPA subcellular). Compare the IF pattern with cell boundaries and nuclei before relating it to chromogenic IHC; the paraffin-section caption supplies no IF protocol or fixation condition (caption A00984-3).
What should I check when NEDD4 DAB staining appears diffuse?
First compare a no-primary section with the stained section to identify detection-system and tissue background (standard IHC practice). The selected assay used a peroxidase-conjugated secondary and DAB; an endogenous peroxidase block is a general chromogenic IHC control to evaluate when background persists (caption A00984-3; standard IHC practice). Check whether serum blocking, washes and primary concentration were consistent with the documented 10% goat serum and 2 μg/ml primary conditions (caption A00984-3). Also inspect folds, cut edges and damaged regions separately, because signal there may reflect section artefact rather than the predominantly cytoplasmic NEDD4 pattern (standard IHC practice; UniProt P46934 subcellular location).
How should I score NEDD4 staining across paraffin sections? ⚠ ANSWER MARKED FOR VERIFICATION
Define the cell population and compartment before scoring, because NEDD4 is predominantly cytoplasmic but can also occur in nuclei (UniProt P46934 subcellular location). For cellular staining, record the percentage of positive cells and an intensity-based H-score; for spatial comparisons, report positive-cell density per mm² of evaluable tissue (standard IHC practice). Normalise counts to the relevant cell population or intact tissue area, and keep exposure-independent staining, counterstain and scoring thresholds consistent across sections (standard IHC practice). Report cytoplasmic and nuclear scores separately, exclude folds and necrotic regions, and retain the no-primary result when setting the positive threshold (standard IHC practice).
How do I distinguish credible NEDD4 staining from an IHC artefact?
A credible result should form a cell-associated pattern consistent with cytoplasmic NEDD4, with possible nuclear signal (UniProt P46934 subcellular location; HPA tissue IHC). Use cell identity rather than whole-tissue darkness: HPA reports high staining in thyroid glandular cells and vaginal squamous epithelial cells, but no detected staining in adipocytes (HPA tissue IHC). Treat staining concentrated at section edges, folds or necrotic areas as suspect until it persists in intact regions and across sections (standard IHC practice). If the no-primary control is positive, investigate endogenous enzyme activity or detection background before assigning DAB signal to NEDD4 (standard IHC practice).
Boster reagents
Best NEDD4 / E3 ubiquitin-protein ligase NEDD4 IHC Antibodies
The catalog includes paraffin-section IHC images from rat brain and human tumors (catalog IHC captions), plus an IF/ICC image from A549 cells (A00984-3 IF caption).
Real IHC data
Anti-NEDD4 Antibody ®
Cat # A00984-3
Real IHC data
Anti-NEDD4 Rabbit Monoclonal Antibody
Cat # M00984
A00984-3 has IHC images from rat brain and human colon, liver, and lung cancers, plus an IF/ICC image from A549 cells (A00984-3 image captions). M00984 has IHC images from human bladder and pancreas cancers (M00984 IHC captions).
Which to pick: For paraffin-section IHC, start with A00984-3 at 2 μg/ml for rat brain or the pictured human tissues (A00984-3 IHC captions), or rabbit monoclonal M00984 at 1:50 for the pictured human tumors (catalog: monoclonal; M00984 IHC captions); both images report EDTA retrieval at pH 8.0 (catalog IHC captions). For IF/ICC, choose A00984-3 at 5 μg/ml, as shown in A549 cells (A00984-3 IF caption); M00984 has no listed IF/ICC application (catalog applications). For studies spanning species, M00984 lists human, mouse, and rat reactivity, while A00984-3 lists human and rat (catalog reactivity); the IHC captions describe paraffin sections but do not report the fixative (catalog IHC captions).
Each figure is that product's own IHC / IF validation image from its datasheet.
References
- UniProt Consortium. UniProt entry P46934 (NEDD4_HUMAN, E3 ubiquitin-protein ligase NEDD4).
- Human Protein Atlas. NEDD4 tissue IHC expression (reliability: Approved).
- Human Protein Atlas. NEDD4 subcellular location (ICC-IF): Mainly localized to the nucleoplasm and cytosol. In addition localized to the plasma membrane..
- Human Protein Atlas. NEDD4 antibody validation summary (4 antibodies).
- NEDD4 expression is associated with breast cancer progression and is predictive of a poor prognosis. Breast cancer research : BCR 2019 — PMC6923956.
- NEDD4 suppresses ferroptosis in lung ischemia-reperfusion injury by ubiquitinating and degrading SLC1A5. Scientific reports 2025 — PMC12820133.
- The E3 ubiquitin ligase NEDD4 mediates cell migration signaling of EGFR in lung cancer cells. Molecular cancer 2018 — PMC5817799.
- The NEDD4-1 E3 ubiquitin ligase: A potential molecular target for bortezomib sensitivity in multiple myeloma. International journal of cancer 2020 — PMC7027789.
- PubMed PMID:17218260 — UniProt-cited evidence.
- PubMed PMID:7788527 — UniProt-cited evidence.
- PubMed PMID:14702039 — UniProt-cited evidence.
Immunohistochemistry protocol sheet for NEDD4 (E3 ubiquitin-protein ligase NEDD4). Expected localisation Cytoplasmic tissue staining observed; nuclear location reported (HPA tissue IHC; UniProt). Antigen retrieval: EDTA pH 8.0 HIER, heat-mediated (datasheet A00984-3). Validated IHC antibody: A00984-3 at 2-5 μg/ml (the product's own IHC validation image is shown). Controls (HPA): positive Skin (Fibroblasts); negative Adipose tissue. IHC-P workflow on paraffin sections; fixative unspecified. Protocol steps: 1. Sample: Paraffin-embedded rat brain tissue; fixative not specified (datasheet A00984-3); 2. Fixation: Image fixative and duration unreported (datasheet A00984-3); 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 retrieval: EDTA pH 8.0 (datasheet A00984-3); 20 min, 95–100 °C (standard); 6. Peroxidase block: 3% H2O2, 10 min , room temperature (standard); 7. Blocking: 10% goat serum (datasheet A00984-3); 8. Primary antibody: Rabbit anti-NEDD4, 2-5 μg/ml (datasheet A00984-3); 9. Primary incubation: Overnight at 4 °C (datasheet A00984-3). Watch for: Fixation: Keep tissue fixation consistent across samples (standard IHC practice; not target-specific); Caveat: Glandular staining ranges from high to undetected by organ (HPA tissue IHC); Isoform / epitope: Four isoforms; check whether the epitope is shared (UniProt); Regulation: Expression regulation is not specified (UniProt). Evidence: UniProt P46934, HPA tissue IHC · Approved, HPA ICC-IF · Mainly localized to the nucleoplasm and cytosol. In addition…, Datasheet A00984-3, PMC6923956, PMC12820133. QR code links to https://www.bosterbio.com/bosterbio-gene-info-cards/NEDD4/immunohistochemistry-ihc-guide.