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JUND / Transcription factor JunD · IHC design guide
Design Immunohistochemistry for JUND
Plan chromogenic JUND IHC in paraffin sections around the nuclear tissue pattern (HPA tissue IHC), using adrenal glandular cells as a high-staining reference and adipocytes as a negative reference (HPA tissue IHC). This guide covers fixation, controls, nuclear scoring, and the catalog antibody’s 2–5 μg/ml IHC range (datasheet A05609-1).
Evidence assembled Oct 2026 · For research use; verify linked source records and product datasheet before use
JUND 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 staining in tissue (HPA tissue IHC) | |
| Staining pattern | General nuclear staining across tissue cells (HPA tissue IHC) | |
| Antigen retrieval | EDTA pH 8.0 HIER, heat-mediated (datasheet A05609-1) | |
| Positive control | Adrenal gland+4 more · see all | |
| Negative control | Adipose tissue+2 more · see all |
Important caveats
Reasons your staining may differ from the expected pattern.
| Fixation | Matched tissue-IHC evidence does not establish the fixation claim. Validate the specimen-specific method before use. (selected-SKU IHC image A05609-1) | |
| Caveat | Staining and RNA show medium consistency; verify locally (HPA tissue IHC) | |
| Regulation | Expression regulation not annotated (UniProt) | |
| Isoform / epitope | No isoforms annotated; one 1–347 chain (UniProt) |
Section 1
Recommended JUND IHC & IF Protocols
Start with the catalog antibody’s paraffin-section protocol (datasheet A05609-1). The published JUND methods below describe mouse nucleus accumbens staining (PMC6082848) and hamster brain chromogenic staining (PMC3894818).
| Sample | Paraffin-embedded human renal cell carcinoma tissue; fixative not specified (datasheet A05609-1) |
| Fixation | Image fixative and duration unreported (datasheet A05609-1); 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 A05609-1); 20 min, 95–100 °C (standard) |
| Peroxidase block | 3% H2O2, 10 min, room temperature (standard) |
| Blocking | 10% goat serum (datasheet A05609-1) |
| Primary antibody | Rabbit anti-JUND, 2-5μg/ml (datasheet A05609-1) |
| Primary incubation | Overnight at 4 °C (datasheet A05609-1) |
| Detection | HRP-conjugated secondary, DAB chromogen (datasheet A05609-1) |
| Counterstain | Hematoxylin, blue, dehydrate and mount (standard) |
| Expected result | JUND-positive staining in glandular cells of adrenal gland (HPA tissue IHC: High). HPA tissue profile: General nuclear expression. No signal in the no-primary control. |
💡Decision noteFor paraffin sections, start with EDTA pH 8.0 heat retrieval (datasheet A05609-1). The hamster protocol used frozen free-floating sections (PMC3894818).
Section 2
What Is the Expected JUND Staining Pattern?
JUND is a nuclear transcription factor with no transmembrane segment (UniProt P17535: nucleus, topology). In paraffin-section IHC, expect predominantly nuclear staining in glandular cells of several organs and esophageal squamous epithelium (HPA: general nuclear expression; High in listed cells). The HPA tissue profile is Supported, with medium agreement between staining and RNA data and external verification pending (HPA: tissue IHC reliability).
| Distinct nuclear chromogen in adrenal or duodenal glandular cells, with nuclei easier to identify against the counterstain. | This matches the expected compartment and a High-staining cell population (UniProt P17535: nucleus; HPA: High in adrenal and duodenal glandular cells). Judge the signal in identified cells rather than by whole-section color. |
| Predominantly cytoplasmic, membranous, or extracellular color, especially when nuclei remain clear. | That distribution conflicts with the reported nuclear pattern (UniProt P17535: nucleus, no transmembrane segment; HPA: general nuclear expression). Treat it as possible nonspecific staining or detection artifact; it does not establish a new JUND location. |
| Strong color in adipocytes or bone-marrow hematopoietic cells while the expected nuclear pattern is absent. | HPA reports JUND as Not detected in these cell populations (HPA: adipocytes; bone-marrow hematopoietic cells). Check cross-reactivity or endogenous detection activity. Their reference status does not make every stained cell an automatic false positive. |
| Diffuse color across tissue, luminal material, or blank areas, obscuring nuclear boundaries. | This is difficult to score as JUND because the reference pattern is nuclear (HPA: general nuclear expression). Uneven background may arise from blocking, washing, or chromogen detection conditions (standard IHC practice); compare the no-primary control. |
| No nuclear signal in an otherwise intact positive reference section, such as adrenal gland or esophagus. | Those reference cells are reported High (HPA: adrenal glandular cells; esophageal squamous epithelial cells). A blank result calls for a reagent and workflow check before interpreting test tissue as negative; HPA reliability remains Supported, pending external verification (HPA: tissue IHC reliability). |
💡Expected JUND appearanceCall a result positive when identifiable glandular or esophageal squamous cells show clear, predominantly nuclear chromogen, often strong in HPA High populations; diffuse cytoplasmic or blank-area color is suspect (HPA: tissue IHC pattern and High cells; UniProt P17535: nucleus).
| Reference cell population | Choose a named High population to assess whether nuclear detection works: adrenal, cervical, duodenal, endometrial, epididymal, fallopian-tube, or gallbladder glandular cells, or esophageal squamous cells (HPA: tissue IHC). Low populations, including gastric glandular cells and cardiomyocytes, are less decisive positive references (HPA: Low in those cells). |
| Strength of tissue evidence | The broad nuclear tissue pattern is Supported, with medium staining-to-RNA consistency and external verification pending (HPA: tissue IHC reliability). Low tissue RNA specificity does not predict uniform staining in every cell (HPA: RNA specificity; tissue IHC levels). |
| Antibody validation | HPA063029 and CAB005268 are Supported for IHC; HPA068905 has no IHC status in this payload (HPA: antibody validation). Use the catalog antibody's IHC-P instructions for its working conditions; do not transfer validation or a dilution between antibodies. |
| Detection background | Endogenous enzyme activity, inadequate blocking, or residual detection reagent can produce color unrelated to primary-antibody binding (standard chromogenic IHC practice). A no-primary control helps separate detection background from a nuclear staining pattern; this is general workflow guidance, not a reported JUND-specific effect. |
| IF/ICC Q: Where should JUND appear? | A: Predominantly in the nucleoplasm (HPA: enhanced nucleoplasm ICC-IF; UniProt P17535: nucleus). HPA lists MCF-7, SH-SY5Y, U2OS, and SK-MEL-30 as imaged cell lines (HPA: subcellular ICC-IF); this localization evidence does not supply an IF protocol for the paraffin IHC workflow. |
| Situation | Likely cause | Next action |
|---|---|---|
| The High-reference section has no nuclear chromogen. | Primary-antibody or detection conditions may have failed (standard IHC practice); HPA's High designation is an observed reference pattern, not a guarantee for each run (HPA: tissue IHC). | Check the catalog antibody's IHC-P conditions, reagent activity, and a same-run positive control; review the run before calling test tissue negative (standard IHC practice). |
| Signal is mostly cytoplasmic or outlines cell membranes. | The compartment disagrees with the reported nuclear localization (UniProt P17535: nucleus, no transmembrane segment; HPA: general nuclear expression). Nonspecific binding or detection background is possible. | Compare with a no-primary control and inspect whether identified nuclei stain in an HPA High cell population (HPA: tissue IHC; standard IHC practice). |
| Brown color persists in a no-primary control. | Detection-related background can persist without the primary antibody, including endogenous enzyme activity (standard chromogenic IHC practice). | Review the relevant enzyme block, detection reagents, washes, and control section before attributing color to JUND (standard IHC practice). |
| Background is diffuse, but some nuclei appear positive. | Excess detection signal or insufficient washing can obscure cell boundaries (standard IHC practice). HPA's reference pattern requires a readable nuclear distribution (HPA: general nuclear expression). | Assess the no-primary control, then adjust detection or washing under the catalog IHC-P workflow and rescore identifiable nuclei (standard IHC practice). |
| An HPA Not-detected population stains strongly. | Adipocytes, bone-marrow hematopoietic cells, and hippocampal glia are reported Not detected (HPA: tissue IHC); unexpected staining could reflect cross-reactivity or background, but cannot be diagnosed from color alone. | Compare compartment, nearby positive cells, and no-primary control; investigate specificity before assigning the unexpected signal to JUND (HPA: tissue IHC; standard IHC practice). |
| A Low-reference population looks blank. | Weak staining can be hard to distinguish from background; stomach glandular cells, cholangiocytes, cardiomyocytes, myocytes, and splenic red-pulp cells are listed Low (HPA: tissue IHC). | First verify nuclear staining in a High-reference population, then score the Low population conservatively with the same detection conditions (HPA: tissue IHC; standard IHC practice). |
Experiment evidence
IHC & IF images showing JUND staining
A05609-1 · IHCIHC analysis of JunD using anti-JunD antibody (A05609-1). JunD was detected in a paraffin-embedded section of human renal cell carcinoma tis
A05609-1 · IHCIHC analysis of JunD using anti-JunD antibody (A05609-1). JunD was detected in a paraffin-embedded section of human appendix adenocarcinoma
HPA · Cerebral cortexHuman Protein Atlas IHC, Cerebral cortex. Source: https://www.proteinatlas.org/ENSG00000130522-JUND/tissue/cerebral+cortex#imid_17480127
HPA · ColonHuman Protein Atlas IHC, Colon. Source: https://www.proteinatlas.org/ENSG00000130522-JUND/tissue/colon#imid_17480045
HPA · LiverHuman Protein Atlas IHC, Liver. Source: https://www.proteinatlas.org/ENSG00000130522-JUND/tissue/liver#imid_17480046
HPA · KidneyHuman Protein Atlas IHC, Kidney. Source: https://www.proteinatlas.org/ENSG00000130522-JUND/tissue/kidney#imid_17480055
HPA · ICC-IF MCF-7Human Protein Atlas immunofluorescence, MCF-7, antibody HPA063029; green = JUND, blue = nucleus, red = microtubules.
HPA · ICC-IF MCF-7Human Protein Atlas immunofluorescence, MCF-7, antibody HPA063029; green = JUND, blue = nucleus, red = microtubules.
← swipe / scroll for more images →
Real IHC / IF data behind the staining-pattern expectations in this section.
Sample controls for JUND IHC & IF
🧪Run adrenal gland first: its glandular cells are High for JUND (HPA: adrenal gland, glandular cells High). Use adipose tissue as the negative tissue (HPA: adipocytes Not detected); cells designated as internal negatives on the adrenal slide should show only background nuclear staining, but HPA does not identify a specific negative cell type there.
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 JUND in MCF-7, SH-SY5Y, U2OS, SK-MEL-30, with annotated localisation: Nucleoplasm (enhanced) (HPA subcellular).
Technical controls: Include a no-primary (secondary-only) slide, an isotype control matched to the primary antibody’s host species and clonality, and a JUND knockout sample if available (standard IHC controls). Quench endogenous peroxidase before HRP/DAB detection in adrenal tissue, and check that control slides remain free of specific nuclear signal (standard chromogenic IHC practice; selected-SKU caption: HRP/DAB detection).
⚠️Feasibility: A target-specific fixation window or fixation effect is unreported, and the fixative in the selected-SKU tissue-IHC caption is unreported (selected-SKU caption: fixative not stated). The demonstrated paraffin-section procedure uses heat retrieval in EDTA at pH 8.0, but the evidence does not establish that retrieval is required or that frozen sections or IF are easier (selected-SKU caption: EDTA heat retrieval; HPA: ICC-IF images available). Score nuclear staining and watch for nonspecific chromogenic background in adrenal tissue (UniProt P17535: nucleus; HPA: nucleoplasm; standard IHC practice).
HPA tissue IHC evidence for JUND
Comprehensive Human Protein Atlas IHC scoring per tissue (reliability: Supported — Medium consistency between antibody staining and RNA expression data. Pending external verification.). 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 → |
| Cervix | Glandular cells | High | Protein (IHC) | HPA → |
| Duodenum | Glandular cells | High | Protein (IHC) | HPA → |
| Endometrium | Glandular cells | High | Protein (IHC) | HPA → |
| Epididymis | Glandular cells | High | Protein (IHC) | HPA → |
Section 3
Advanced JUND IHC Tips
Troubleshoot JUND staining in paraffin sections by checking nuclear localisation, the validated retrieval condition and tissue controls before interpreting chromogenic signal.
Which retrieval condition should I use when JUND nuclear staining is weak?
Start with heat-mediated antigen retrieval in EDTA at pH 8.0 (datasheet A05609-1). The catalog antibody produced staining in a paraffin section of human renal cell carcinoma using that condition, followed by 2 μg/ml primary antibody overnight at 4°C (datasheet A05609-1). If staining remains weak, optimise heating and cooling within the EDTA workflow while keeping section thickness, detection and exposure comparable (standard IHC practice). Include a known positive glandular-cell section and a negative-control section in the same run (HPA: high staining in adrenal gland glandular cells; standard IHC practice). Judge improvement by sharper nuclear signal, since JUND is nuclear (UniProt P17535).
How should I assess fixation when JUND staining varies between paraffin sections?
The selected tissue image describes a paraffin section but does not report its fixative, so target-specific JUND fixation sensitivity is unknown (datasheet A05609-1). Record each specimen’s fixative, fixation duration and processing history, then compare sections processed together before changing antibody conditions (standard IHC practice). Use the documented EDTA pH 8.0 retrieval and 2 μg/ml primary antibody as a starting point for method comparison (datasheet A05609-1). Check section integrity and nuclear counterstaining alongside the JUND signal, because poor preservation can undermine compartment-level interpretation (standard IHC practice). Do not infer a fixation effect from JUND phosphorylation sites or tissue staining patterns (UniProt P17535; HPA: tissue IHC profile).
What staining pattern supports JUND localisation in a tissue section?
Prioritise nuclear staining in intact cells: JUND is annotated in the nucleus, and the tissue IHC profile describes general nuclear expression (UniProt P17535; HPA: tissue IHC profile). A nucleoplasmic pattern is also reported from cell imaging, although that finer distinction may be difficult to resolve with chromogenic tissue IHC (HPA: subcellular profile; standard IHC practice). Compare nuclei and cytoplasm within the same cell rather than treating diffuse brown tissue colour as a positive result (standard IHC practice). Use glandular cells from a documented high-staining tissue as a positive comparator and adipocytes as a low-signal comparator (HPA: high in adrenal gland glandular cells; not detected in adipocytes).
Could an isoform or epitope issue explain inconsistent JUND staining?
The supplied JUND record lists 0 annotated isoforms, so it does not support assigning different tissue staining patterns to named isoforms (UniProt P17535). JUND contains a bZIP region at residues 268–331 and several annotated phosphorylation sites, but the catalog antibody’s exact epitope is not supplied (UniProt P17535; datasheet A05609-1). Consequently, a particular phosphorylation site or domain cannot be blamed for weak staining from this evidence alone (UniProt P17535; datasheet A05609-1). First compare nuclear staining under the documented EDTA pH 8.0 retrieval with matched positive and negative controls (datasheet A05609-1; standard IHC practice). If inconsistency persists, obtain epitope information before proposing a site-specific mechanism (standard antibody validation practice).
How can I adapt JUND assessment to multiplex immunofluorescence?
For a multiplex experiment, pair JUND with a marker that identifies the glandular cells being assessed, since several glandular populations show high tissue staining (HPA: tissue IHC profile; standard IF practice). Select fluorophores after checking the specimen’s autofluorescence, and reserve a well-separated channel for the expected nuclear JUND signal (UniProt P17535; standard IF practice). Permeabilise sufficiently for antibody access to the nuclear compartment; JUND has no transmembrane segment, so membrane-side epitope orientation is not a concern for the protein itself (UniProt P17535; standard IF practice). Titrate and validate the antibody for IF independently of its paraffin-section chromogenic result, using single-channel and no-primary controls to assess bleed-through and background (datasheet A05609-1; standard IF practice).
What should I check when JUND staining appears broadly brown?
Start by comparing brown signal with nuclei, because the expected JUND distribution is nuclear and the tissue profile reports general nuclear staining (UniProt P17535; HPA: tissue IHC profile). The selected protocol used 10% goat serum blocking, a peroxidase-conjugated secondary antibody and DAB detection; those details describe the tested image, not proof that every brown deposit is JUND (datasheet A05609-1). Include no-primary and peroxidase-control sections, and examine whether pigment or endogenous enzyme activity persists without primary antibody (standard chromogenic IHC practice). If diffuse staining rises with antibody concentration, titrate around the documented 2 μg/ml starting concentration while preserving the EDTA pH 8.0 retrieval condition (datasheet A05609-1; standard IHC practice).
How should I quantify JUND staining across specimens? ⚠ ANSWER MARKED FOR VERIFICATION
Define the cell population and tissue region before scoring, then count JUND-positive nuclei rather than total brown area, consistent with its nuclear localisation (UniProt P17535; standard IHC practice). Report the percentage of positive cells and, when intensity matters, a nuclear H-score based on the proportions at each intensity level (standard IHC scoring practice). Normalise counts to the number of evaluable nuclei in the same annotated region; if reporting positive-cell density, use cells per mm² of evaluable tissue (standard IHC quantification practice). Keep retrieval, detection and scoring thresholds consistent, and record excluded damaged or necrotic areas so specimen quality does not distort comparisons (datasheet A05609-1; standard IHC practice).
How do I distinguish true JUND staining from tissue artefact?
A convincing positive result places signal in intact nuclei of the scored cells, matching JUND’s nuclear annotation and the general nuclear tissue profile (UniProt P17535; HPA: tissue IHC profile). Compare the pattern with a documented high-staining glandular population and a population reported as undetected, while recognising that the tissue atlas labels its IHC reliability Supported with medium RNA–staining consistency pending external verification (HPA: adrenal gland glandular cells high; adipocytes not detected; reliability Supported). Treat staining confined to section edges or necrotic areas cautiously, and examine no-primary controls for residual brown signal from endogenous enzyme activity (standard chromogenic IHC practice). Interpret cytoplasmic-only staining as requiring additional validation rather than evidence of a new JUND compartment (UniProt P17535; standard antibody validation practice).
Boster reagents
Best JUND / Transcription factor JunD IHC Antibodies
JUND IHC images show staining in human renal cell carcinoma and appendix adenocarcinoma paraffin sections (A05609-1 image captions). Human, mouse, and rat reactivity is listed (A05609-1 catalog).
Real IHC data
Anti-JunD Antibody ®
Cat # A05609-1
A05609-1, the SKU with a rendered IHC card, is shown staining human renal cell carcinoma paraffin tissue after EDTA pH 8 retrieval and DAB detection (A05609-1 image caption). A second caption shows staining in human appendix adenocarcinoma paraffin tissue (A05609-1 image caption).
Which to pick: Choose the polyclonal A05609-1 for tissue IHC: its images document paraffin sections, but the fixative is unreported (A05609-1 image captions; catalog). For IF/ICC, M05609 is listed for human, mouse, and rat, while M05609-1 is listed for human only; neither has an IF image in the payload (catalog). For cross-species tissue IHC, A05609-1 lists human, mouse, and rat reactivity, although its IHC images show human tissue only (A05609-1 catalog; image captions).
Each figure is that product's own IHC / IF validation image from its datasheet.
References
- UniProt Consortium. UniProt entry P17535 (JUND_HUMAN, Transcription factor JunD).
- Human Protein Atlas. JUND tissue IHC expression (reliability: Supported).
- Human Protein Atlas. JUND subcellular location (ICC-IF): Localized to the nucleoplasm..
- Human Protein Atlas. JUND antibody validation summary (3 antibodies).
- Selective up-regulation of JunD transcript and protein expression in vasopressinergic supraoptic nucleus neurones in water-deprived rats. Journal of neuroendocrinology 2012 — PMC3499652.
- Transcriptional and physiological adaptations in nucleus accumbens somatostatin interneurons that regulate behavioral responses to cocaine. Nature communications 2018 — PMC6082848.
- Integrated proteomics and metabolomics analysis revealed that macrophage-related signals may be potential biomarkers for oral squamous cell carcinoma. Scientific reports 2025 — PMC12816574.
- ΔJunD overexpression in the nucleus accumbens prevents sexual reward in female Syrian hamsters. Genes, brain, and behavior 2013 — PMC3894818.
- PubMed PMID:1903194 — UniProt-cited evidence.
- PubMed PMID:2112242 — UniProt-cited evidence.
- PubMed PMID:9989505 — UniProt-cited evidence.
Immunohistochemistry protocol sheet for JUND (Transcription factor JunD). Expected localisation Nuclear staining in tissue (HPA tissue IHC). Antigen retrieval: EDTA pH 8.0 HIER, heat-mediated (datasheet A05609-1). Validated IHC antibody: A05609-1 at 2-5μg/ml (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 renal cell carcinoma tissue; fixative not specified (datasheet A05609-1); 2. Fixation: Image fixative and duration unreported (datasheet A05609-1); 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 A05609-1); 20 min, 95–100 °C (standard); 6. Peroxidase block: 3% H2O2, 10 min , room temperature (standard); 7. Blocking: 10% goat serum (datasheet A05609-1); 8. Primary antibody: Rabbit anti-JUND, 2-5μg/ml (datasheet A05609-1); 9. Primary incubation: Overnight at 4 °C (datasheet A05609-1). Watch for: Fixation: Matched tissue-IHC evidence does not establish the fixation claim. Validate the specimen-specific method before use. (selected-SKU IHC image A05609-1); Caveat: Staining and RNA show medium consistency; verify locally (HPA tissue IHC); Isoform / epitope: No isoforms annotated; one 1–347 chain (UniProt); Regulation: Expression regulation not annotated (UniProt). Evidence: UniProt P17535, HPA tissue IHC · Supported, HPA ICC-IF · nucleoplasm., Datasheet A05609-1, PMC6082848, PMC3894818. QR code links to https://www.bosterbio.com/bosterbio-gene-info-cards/JUND/immunohistochemistry-ihc-guide.