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- Table of Contents
Plan chromogenic ADRM1 IHC-P around cytoplasmic and nuclear tissue staining (HPA tissue IHC). Start the catalog antibody A04010-2 at 2–5 μg/mL (datasheet A04010-2), and assess staining against high-staining glandular cells and cardiomyocytes reported as not detected (HPA tissue IHC).
Expected localisation, validated protocols, controls and antibodies — the at-a-glance facts below, then the full design guide.
| Expected localisation | Cytoplasmic and nuclear tissue staining (HPA tissue IHC) | |
| Staining pattern | Glandular and neural cells show cytoplasmic/nuclear staining (HPA tissue IHC) | |
| Antigen retrieval | EDTA pH 8.0 HIER, heat-mediated (datasheet A04010-2) | |
| Positive control | Adrenal gland+4 more · see all | |
| Negative control | Heart muscle |
| Fixation | Keep formalin fixation consistent across paraffin sections. (standard IHC practice; not target-specific) | |
| Caveat | Antibody staining and RNA show medium consistency (HPA tissue IHC) | |
| Regulation | Expression regulation not annotated (UniProt) | |
| Isoform / epitope | No isoforms; mature chain spans residues 2–407, with no transmembrane segment (UniProt) |
The catalog antibody’s IHC-P protocol (datasheet A04010-2) is accompanied by published bladder and ovarian tissue protocols (PMC10491834; PMC5547474).
| Sample | Paraffin-embedded human lung cancer tissue; fixative not specified (datasheet A04010-2) |
| Fixation | Image fixative and duration unreported (datasheet A04010-2); 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 A04010-2); 20 min, 95–100 °C (standard) |
| Peroxidase block | 3% H2O2, 10 min, room temperature (standard) |
| Blocking | 10% goat serum (datasheet A04010-2) |
| Primary antibody | Rabbit anti-ADRM1, 2-5 μg/ml (datasheet A04010-2) |
| Primary incubation | Overnight at 4 °C (datasheet A04010-2) |
| Detection | Streptavidin-biotin complex (SABC), DAB chromogen (datasheet A04010-2) |
| Counterstain | Hematoxylin, blue, dehydrate and mount (standard) |
| Expected result | ADRM1-positive staining in glandular cells of adrenal gland (HPA tissue IHC: High). HPA tissue profile: General cytoplasmic and nuclear expression. No signal in the no-primary control. |
ADRM1 is expected mainly in the cytoplasm and nucleus (UniProt Q16186 subcellular location; HPA tissue IHC: general cytoplasmic and nuclear expression). HPA reports high staining in several glandular, epithelial, neuronal and glial cell populations (HPA tissue IHC). Its tissue IHC profile has Supported reliability, with medium consistency between antibody staining and RNA expression (HPA tissue IHC). ADRM1 has no transmembrane segment, so membrane-only staining needs caution (UniProt Q16186 topology).
| Cytoplasmic and nuclear staining in glandular cells of colon, duodenum, appendix or adrenal gland (HPA tissue IHC: High). | This matches the reported tissue pattern (HPA tissue IHC: general cytoplasmic and nuclear expression). Judge signal within identifiable cells; compare it with the section background (general IHC practice). |
| Nuclear and cytoplasmic staining in cerebellar Purkinje cells, cortical neurons or caudate glial cells (HPA tissue IHC: High). | These are additional reported positive populations (HPA tissue IHC). Their appearance can support interpretation, though the HPA profile has Supported reliability and medium RNA agreement (HPA tissue IHC). |
| A sharp membrane rim dominates, with little cytoplasmic or nuclear signal. | Treat a membrane-only IHC result as inconclusive: UniProt lists cytoplasm and nucleus and no transmembrane segment (UniProt Q16186). HPA ICC-IF reports plasma membrane localisation as uncertain, while nucleoplasm and cytosol are supported (HPA subcellular). |
| Staining appears in an unexpected cell population, or chromogen covers extracellular spaces. | Check morphology and controls before calling cross-reactivity or endogenous detection activity (general IHC practice). HPA reports broad tissue expression, so absence from its supplied examples does not establish that a cell type is negative (HPA tissue IHC). |
| The known-positive control has no detectable cellular staining. | An absent signal in a reported High population suggests an assay failure or an unsuitable section before it establishes ADRM1 absence (HPA tissue IHC; general IHC practice). Review the control section, retrieval, antibody application and detection steps (general IHC practice). |
| Tissue and cell choice | HPA reports High staining in the listed glandular, epithelial, neuronal and glial populations, but cardiomyocytes in heart muscle are Not detected (HPA tissue IHC). Use a reported High population to check assay performance; do not assume that every cell in a positive tissue stains (general IHC practice). |
| Strength of tissue evidence | The tissue IHC profile is Supported, with medium consistency between antibody staining and RNA expression; HPA042266 is IHC Supported (HPA tissue IHC; HPA antibody validation). RNA is tissue enhanced in skeletal muscle, which does not by itself predict the chromogenic pattern of an individual cell (HPA tissue IHC). |
| Topology and processing | ADRM1 has no transmembrane segment, signal peptide, propeptide or annotated glycosylation sites (UniProt Q16186). These annotations support caution with membrane-only staining; they do not establish an IHC epitope, retrieval requirement or fixation sensitivity (UniProt Q16186; general IHC practice). |
| IF/ICC: where should ADRM1 appear? | Expect supported nucleoplasmic and cytosolic localisation in ICC-IF; HPA also lists plasma membrane localisation as uncertain (HPA subcellular). This IF observation is context for compartment interpretation, not a separate IHC-P protocol or proof of a membrane-only tissue pattern. |
| Chromogenic detection | Endogenous enzyme activity or nonspecific reagent deposition can resemble staining; assess reagent controls and whether colour follows cell boundaries and compartments (general IHC practice). The supplied HPA data do not identify a tissue-specific source of such background. |
| Situation | Likely cause | Next action |
|---|---|---|
| No signal in a reported High population (HPA tissue IHC). | A section or IHC workflow problem is possible; a blank slide alone does not establish target absence (general IHC practice). | Check tissue identity, cellular preservation, retrieval, primary antibody application and detection with a known-positive section (general IHC practice). |
| Both specimen and reagent control show diffuse colour. | Background may arise from detection chemistry, endogenous activity or insufficient blocking or washing (general IHC practice). | Compare controls, check blocking and washing, and interpret only signal that follows identifiable cells (general IHC practice). |
| Chromogen is widespread but obscures nuclei and cell borders. | Excess background or overly strong detection can prevent compartment scoring (general IHC practice). | Review primary antibody dilution and detection development using the assay instructions; rescore only when morphology is readable (general IHC practice). |
| A membrane rim is the sole convincing signal. | Membrane localisation is uncertain in HPA ICC-IF, whereas nucleoplasm and cytosol are supported (HPA subcellular). | Treat membrane-only IHC as inconclusive; compare a reported High control for cytoplasmic and nuclear staining and check reagent controls (HPA tissue IHC; general IHC practice). |
| Unexpected cells stain while the expected cells do not. | Cross-reactivity, endogenous detection activity or misidentified cells are possibilities; HPA examples are not an exhaustive negative-cell list (HPA tissue IHC; general IHC practice). | Recheck morphology and control staining, then compare with the named HPA populations before assigning biological specificity (HPA tissue IHC; general IHC practice). |
| Cardiomyocytes stain strongly despite the supplied HPA negative observation. | HPA lists heart muscle cardiomyocytes as Not detected; a conflicting result warrants review but is not proof of an artefact (HPA tissue IHC). | Check tissue identity, cellular localisation and reagent controls; compare the same run with a reported High population (HPA tissue IHC; general IHC practice). |
Comprehensive Human Protein Atlas IHC scoring per tissue (reliability: Supported — 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.
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Adrenal gland | Glandular cells | High | Protein (IHC) | HPA → |
| Appendix | Glandular cells | High | Protein (IHC) | HPA → |
| Caudate | Glial cells | High | Protein (IHC) | HPA → |
| Cerebellum | Purkinje cells | High | Protein (IHC) | HPA → |
| Cerebral cortex | Neuronal cells | High | Protein (IHC) | HPA → |
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Heart muscle | Cardiomyocytes | Not detected | Protein (IHC) | HPA → |
Troubleshoot ADRM1 staining in paraffin sections by checking retrieval, compartment patterns, background and scoring against the available tissue evidence.
Anti-ADRM1 antibodies have IHC images from human spleen, lung cancer, liver and stomach cancer, and mouse brain; an IF image shows CACO-2 cells (catalog image captions).
A04010 has a human spleen IHC image at 5 μg/mL (A04010 image caption). A04010-2 has paraffin-section IHC images from human lung cancer, liver and stomach cancer and mouse brain, plus an IF/ICC image from CACO-2 cells (A04010-2 image captions).
Which to pick: For tissue IHC, choose A04010 for the documented human spleen example or A04010-2 for its documented human and mouse paraffin-section examples (catalog IHC image captions). For IF/ICC, choose A04010-2 at the listed 5 μg/mL; A04010 lists IHC-P but no IF/ICC application (catalog applications and dilutions). Both list human, mouse and rat reactivity, but the supplied IHC images show human tissue for both and mouse tissue only for A04010-2; the fixative is unreported in those captions (catalog reactivity; catalog IHC image captions).