This website uses cookies to ensure you get the best experience on our website.
- Table of Contents
DMRT1 / Doublesex- and mab-3-related transcription factor 1 · IHC design guide
Design Immunohistochemistry for DMRT1
Plan paraffin-section IHC around nuclear DMRT1 staining in a subset of spermatogonia (HPA tissue IHC). Use testis as a positive control (HPA tissue IHC) and interpret staining with the reported off-target binding in mind (HPA tissue IHC).
Evidence assembled Oct 2026 · For research use; verify linked source records and product datasheet before use
DMRT1 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 a subset of spermatogonia (HPA tissue IHC) | |
| Staining pattern | A subset of spermatogonia shows nuclear staining (HPA tissue IHC) | |
| Antigen retrieval | Citrate pH 6 HIER, heat-mediated (datasheet RP1083) | |
| Positive control | Testis | |
| Negative control | Adipose tissue+4 more · see all |
Important caveats
Reasons your staining may differ from the expected pattern.
| Fixation | Keep fixation consistent across sections. (standard IHC practice; not target-specific) | |
| Caveat | Presumed off-target staining can confound interpretation (HPA tissue IHC) | |
| Regulation | Testis-enriched RNA expression (HPA tissue RNA) | |
| Isoform / epitope | 3 isoforms; verify epitope coverage (UniProt) |
Section 1
Recommended DMRT1 IHC & IF Protocols
The catalog antibody protocol is paired with one published chromogenic DMRT1 IHC protocol (PMC6529513).
| Sample | Paraffin-embedded rat testis tissue; fixative not specified (datasheet RP1083) |
| Fixation | Image fixative and duration unreported (datasheet RP1083); verify before use. |
| Sectioning | 4–5 µm sections on charged slides (standard) |
| Deparaffinisation | Xylene, graded ethanol series to water (standard) |
| Antigen retrieval | Heat retrieval: Citrate pH 6, 20 min (datasheet RP1083) |
| Peroxidase block | 3% H2O2, 10 min, room temperature (standard) |
| Blocking | 10% goat serum (datasheet RP1083) |
| Primary antibody | Rabbit anti-DMRT1, 0.5-1μg/ml (datasheet RP1083) |
| Primary incubation | Overnight at 4 °C (datasheet RP1083) |
| Detection | Streptavidin-biotin complex (SABC), DAB chromogen (datasheet RP1083) |
| Counterstain | Hematoxylin, blue, dehydrate and mount (standard) |
| Expected result | DMRT1-positive staining in preleptotene spermatocytes of testis (HPA tissue IHC: High). HPA tissue profile: Nuclear expression in a subset spermatogonia. No signal in the no-primary control. |
💡Decision noteStart with heat-mediated citrate retrieval at pH 6 (RP1083 datasheet); PMC6529513 does not state a retrieval condition.
Section 2
What Is the Expected DMRT1 Staining Pattern?
DMRT1 is a nuclear transcription factor with no transmembrane segment (UniProt Q9Y5R6: subcellular location, topology). In testis IHC, expect nuclear staining in a subset of spermatogonia; HPA also records high staining in preleptotene spermatocytes (HPA: tissue profile, testis). HPA rates its IHC evidence Enhanced, while noting medium consistency with RNA data and presumed off-target staining that was disregarded (HPA: reliability).
| Distinct nuclear staining in selected germ cells of a testis section, with strong signal in preleptotene spermatocytes. | This fits the reported nuclear pattern in a subset of spermatogonia and the High level recorded for preleptotene spermatocytes (HPA: tissue profile, testis). Score the stained cells and their compartment together; signal elsewhere does not establish a DMRT1-positive result. |
| Predominantly cytoplasmic, membranous, or extracellular staining, without a convincing nuclear component. | The compartment disagrees with DMRT1's nuclear location and lack of a transmembrane segment (UniProt Q9Y5R6: subcellular location, topology). Treat it as a possible staining artefact; review morphology and controls before assigning target expression. |
| Strong staining in cells outside the expected testis germ-cell population. | Unexpected cell staining may reflect antibody cross-reactivity or endogenous detection activity (general IHC practice). HPA reports presumed off-target binding that was disregarded during assessment (HPA: reliability). Check whether the signal is nuclear and compare matched detection controls before interpreting it as DMRT1. |
| Broad, weak colour across nuclei, cytoplasm, and tissue spaces. | Diffuse signal obscures the selective nuclear pattern reported for testis (HPA: tissue profile). It may arise from background in the staining or detection workflow (general IHC practice). Evaluate the negative and detection controls before scoring faint nuclei as positive. |
| No convincing nuclear signal in the expected cells of a testis section. | An absent positive pattern conflicts with HPA's reported testis staining, including its High preleptotene-spermatocyte entry (HPA: tissue profile, testis). First confirm that the relevant cells are present; then investigate the IHC workflow. The supplied sources do not establish DMRT1-specific fixation sensitivity. |
💡Expected DMRT1 appearanceCall a convincing positive result when selected testis germ cells show clear nuclear staining, with High staining reported in preleptotene spermatocytes (HPA: tissue profile, testis); isolated cytoplasmic colour or widespread staining in unrelated cells is suspect (UniProt Q9Y5R6: subcellular location; general IHC practice).
| Target compartment | DMRT1 is nuclear and has no transmembrane segment (UniProt Q9Y5R6: subcellular location, topology). Nuclear location should anchor interpretation; membrane staining alone does not fit the annotated protein. |
| Strength of IHC evidence | HPA rates antibody HPA027850 Enhanced, but describes only medium consistency between staining and RNA data and notes disregarded presumed off-target binding (HPA: antibody validation, reliability). Interpret unexpected cells cautiously. |
| Molecular variation | UniProt lists 3 isoforms and phosphoserine at residue 339 (UniProt Q9Y5R6: isoforms, modified residues). The supplied sources give no epitope map or evidence that either feature changes IHC staining. |
| IF/ICC: is its staining pattern established? | A nuclear pattern is expected from UniProt (UniProt Q9Y5R6: subcellular location). HPA supplies no ICC-IF images or main location for DMRT1, so it does not independently establish an IF/ICC pattern (HPA: subcellular record). |
| Situation | Likely cause | Next action |
|---|---|---|
| Testis section has no nuclear staining in the expected germ cells. | Relevant cells may be absent from the section, or the IHC workflow may have failed (general IHC practice). HPA reports testis-positive cells (HPA: tissue profile). | Inspect morphology for the expected cells, then review antigen retrieval, antibody incubation, detection, and controls as general IHC workflow checks. Do not infer a DMRT1-specific fixation effect from the supplied sources. |
| Signal is strong but mainly cytoplasmic. | That compartment conflicts with the nuclear annotation for DMRT1 (UniProt Q9Y5R6: subcellular location). Background or nonspecific binding is possible (general IHC practice). | Compare a matched negative control and the testis nuclear reference pattern (HPA: tissue profile). Score cytoplasmic signal separately from any convincing nuclear staining. |
| Many unexpected cells stain in a testis section. | Cross-reactivity or endogenous detection activity may contribute (general IHC practice); HPA also notes presumed off-target binding in its IHC assessment (HPA: reliability). | Check cell identity, nuclear localisation, and detection controls. Limit a DMRT1-positive call to a pattern supported by the testis profile (HPA: tissue profile). |
| A comparison section shows staining in adipocytes or adrenal glandular cells. | HPA records DMRT1 as Not detected in those specific cell types (HPA: adipose tissue, adrenal gland). The discrepancy warrants investigation; it does not identify its cause. | Review the exact stained cell type and compartment, then compare antibody and detection controls (general IHC practice). Avoid treating either entire tissue as universally negative. |
| Diffuse brown background makes nuclear boundaries hard to judge. | Background from blocking, washes, or detection can obscure cellular localisation (general IHC practice). It cannot be assigned to DMRT1 from colour alone. | Review blocking, wash, detection, and counterstain conditions using appropriate controls (general IHC practice). Score only nuclei that remain distinct from surrounding background. |
| A few isolated dark deposits appear without a consistent cell pattern. | Deposits may reflect detection artefact rather than the selective nuclear testis pattern (general IHC practice; HPA: tissue profile). | Compare adjacent cells and control sections, and require reproducible nuclear staining in the expected cell population before calling a positive result (general IHC practice; HPA: tissue profile). |
Experiment evidence
IHC & IF images showing DMRT1 staining
RP1083 · IHCIHC analysis of DMRT1 using anti-DMRT1 antibody (RP1083). DMRT1 was detected in paraffin-embedded section of rat testis tissue. Heat mediate
RP1083 · IHCIHC analysis of DMRT1 using anti-DMRT1 antibody (RP1083). DMRT1 was detected in paraffin-embedded section of mouse testis tissue. Heat media
HPA · Cerebral cortexHuman Protein Atlas IHC, Cerebral cortex. Source: https://www.proteinatlas.org/ENSG00000137090-DMRT1/tissue/cerebral+cortex#imid_7958739
HPA · ColonHuman Protein Atlas IHC, Colon. Source: https://www.proteinatlas.org/ENSG00000137090-DMRT1/tissue/colon#imid_7892766
HPA · LiverHuman Protein Atlas IHC, Liver. Source: https://www.proteinatlas.org/ENSG00000137090-DMRT1/tissue/liver#imid_7892759
HPA · KidneyHuman Protein Atlas IHC, Kidney. Source: https://www.proteinatlas.org/ENSG00000137090-DMRT1/tissue/kidney#imid_7892768
← swipe / scroll for more images →
Real IHC / IF data behind the staining-pattern expectations in this section.
Sample controls for DMRT1 IHC & IF
🧪Run testis first and look for nuclear staining in preleptotene spermatocytes (HPA: High in testis preleptotene spermatocytes; UniProt Q9Y5R6: nucleus). Use adrenal gland as the negative tissue (HPA: Not detected in adrenal gland glandular cells); cells without nuclear staining on the testis slide can serve as internal negative comparators, although the supplied HPA row does not identify a specific negative testicular cell type (HPA: High in preleptotene spermatocytes).
Positive control tissue: Testis (Preleptotene spermatocytes, HPA High)
Negative control tissue: Adipose tissue (HPA Not detected)
ICC-IF cell lines (HPA subcellular resource): HPA carries no ICC-IF cell line for DMRT1; derive a cell-line control from the positive tissue's cell type (Preleptotene spermatocytes) and confirm it by RNA or western blot first.
Technical controls: Include a no-primary, secondary-only control; an isotype-matched nonimmune rabbit IgG control matched to the primary antibody's clonality; and DMRT1-knockout tissue or a validated antigen-peptide competition control (selected RP1083 caption: rabbit primary antibody; standard IHC controls). For chromogenic detection, block endogenous peroxidase and check endogenous biotin background when using the caption's biotin-based detection; for IF, assess testis autofluorescence with an unstained section (selected RP1083 caption: biotinylated secondary, streptavidin-biotin complex and DAB; standard IHC/IF practice).
⚠️Feasibility: No target-specific fixation window or fixation effect is reported in the supplied evidence, and the exact RP1083 paraffin-section caption does not state the fixative (selected RP1083 caption: paraffin section; fixative unreported). The reported IHC result used heat retrieval in citrate buffer at pH 6 for 20 minutes, but this single caption does not establish that retrieval is required for every preparation (selected RP1083 caption: retrieval conditions). The supplied evidence does not establish that frozen sections or IF are easier; testis autofluorescence may complicate IF interpretation (HPA subcellular: no ICC-IF image cell lines; standard IF practice).
HPA tissue IHC evidence for DMRT1
Comprehensive Human Protein Atlas IHC scoring per tissue (reliability: Enhanced — Medium consistency between antibody staining and RNA expression data. Presumed off target binding observed and disregarded.). 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 |
|---|---|---|---|---|
| Testis | Preleptotene spermatocytes | High | Protein (IHC) | HPA → |
Undetected expression · recommended negative controls
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Adipose tissue | Adipocytes | Not detected | Protein (IHC) | HPA → |
| Adrenal gland | Glandular cells | Not detected | Protein (IHC) | HPA → |
| Appendix | Glandular cells | Not detected | Protein (IHC) | HPA → |
| Bone marrow | Hematopoietic cells | Not detected | Protein (IHC) | HPA → |
| Breast | Adipocytes | Not detected | Protein (IHC) | HPA → |
Section 3
Advanced DMRT1 IHC Tips
Troubleshoot DMRT1 staining by checking nuclear localisation, testis cell populations, and assay controls before interpreting signal intensity.
What retrieval should I try when DMRT1 nuclear staining is weak in paraffin sections?
Use heat-mediated citrate buffer at pH 6 for antigen retrieval (datasheet RP1083). The catalog antibody’s rat testis paraffin-section image used 20 minutes of retrieval before chromogenic detection (datasheet RP1083). Compare retrieved sections with a matched no-retrieval section, keeping antibody concentration, detection, and imaging conditions constant so that a change in nuclear signal can be attributed to retrieval (general IHC practice). Assess tissue integrity and nonspecific staining alongside signal in the expected testis cell populations; stronger diffuse staining alone does not establish improved DMRT1 detection (HPA tissue IHC; general IHC practice).
How should I investigate variable DMRT1 staining between paraffin blocks?
Record each block’s fixative and fixation history before comparing staining, because target-specific DMRT1 fixation sensitivity is unknown from the supplied evidence (datasheet RP1083: fixative not stated). The rat testis image establishes staining in paraffin sections but does not identify the fixative or its duration (datasheet RP1083). Run blocks together with the same citrate pH 6 retrieval, primary antibody concentration, and chromogenic development conditions to limit processing differences (datasheet RP1083; general IHC practice). Compare nuclear signal in corresponding testis cell populations and inspect morphology; differences across blocks cannot by themselves identify fixation as the cause (HPA tissue IHC; general IHC practice).
Which DMRT1 staining compartment should count as positive?
Score convincing nuclear staining because DMRT1 is annotated as a nuclear transcription factor (UniProt Q9Y5R6). In testis, assess the relevant germ-cell populations rather than treating all cells as equally expected positives: HPA describes nuclear expression in a subset of spermatogonia and high staining in preleptotene spermatocytes (HPA tissue IHC). Use a counterstain to define nuclei and compare staining with a matched no-primary control, especially when chromogen obscures cell boundaries (general IHC practice). Predominantly cytoplasmic or membrane-associated colour should trigger checks of antibody specificity and detection background before it is interpreted as DMRT1 (UniProt Q9Y5R6; general IHC practice).
Could isoform differences explain uneven DMRT1 staining across testis sections?
DMRT1 has 3 annotated isoforms, but the supplied antibody caption does not specify its recognized epitope or isoform coverage (UniProt Q9Y5R6; datasheet RP1083). Do not assign a missing nuclear signal to a particular isoform without an epitope map or independent validation (general IHC practice). DMRT1 has no annotated transmembrane segment and includes a reported phosphoserine at residue 339; neither fact establishes this antibody’s access to, or sensitivity toward, its epitope (UniProt Q9Y5R6). Compare serial sections under identical retrieval and staining conditions, then seek orthogonal evidence if a cell-specific difference persists (general IHC practice).
How can I assess DMRT1 by multiplex IF after seeing a chromogenic IHC result?
Treat IF as a separate assay: the supplied catalog evidence is chromogenic staining of rat testis paraffin sections, with no IF conditions established by that caption (datasheet RP1083). Pair nuclear DMRT1 staining with a separately validated marker for the expected germ-cell population and a nuclear counterstain to assess cell identity (HPA tissue IHC; general IF practice). Choose spectrally separated fluorophores and consider a far-red channel for the weaker target if tissue autofluorescence affects shorter-wavelength channels; inspect single-stain controls for bleed-through (general IF practice). DMRT1 has no transmembrane segment and is nuclear, so include permeabilisation that permits antibody access to the nucleus, then check whether cell morphology remains intact (UniProt Q9Y5R6; general IF practice).
How do I troubleshoot diffuse brown staining that obscures DMRT1-positive nuclei?
Inspect a no-primary control and confirm that the brown deposit follows nuclei rather than section edges or broad tissue regions (UniProt Q9Y5R6; general IHC practice). The catalog image used 10% goat serum blocking, 1 µg/ml primary antibody overnight at 4°C, and a biotin-based DAB detection system (datasheet RP1083). For a peroxidase-based workflow, check the peroxidase block and compare shorter chromogen development or lower primary-antibody exposure on matched sections (general IHC practice). Because HPA reports presumed off-target staining, require appropriate localisation and cell context before accepting a background-reduction adjustment as improved specificity (HPA tissue IHC).
What is a defensible way to quantify DMRT1 staining in testis IHC? ⚠ ANSWER MARKED FOR VERIFICATION
Define the testis cell population and nuclear scoring rule before examining group differences, since HPA describes nuclear expression in a subset of spermatogonia (HPA tissue IHC). Report the percentage of positive nuclei, or an H-score if intensity categories are reproducible; count positive nuclei per mm² when cell density itself matters (general IHC practice). Normalize positive counts to the number of evaluable nuclei in the same annotated population, and document excluded damaged or poorly preserved regions (general IHC practice). Keep retrieval, detection, counterstain, and image thresholds consistent across slides, and review ambiguous cells against the no-primary control (general IHC practice).
When should apparent DMRT1 positivity be considered an artefact?
A credible result shows nuclear signal in an appropriate testis cell population, consistent with DMRT1 localisation and the reported testis staining pattern (UniProt Q9Y5R6; HPA tissue IHC). Question predominantly cytoplasmic or membrane-like colour, widespread staining in unexpected cells, and deposits concentrated at section edges or damaged regions (UniProt Q9Y5R6; general IHC practice). Compare no-primary and detection-only controls when endogenous enzyme activity or the chromogenic detection system could produce colour independent of primary antibody (general IHC practice). HPA reports medium staining–RNA consistency and presumed off-target binding, so an isolated brown signal needs corroboration from localisation, cell identity, and controls (HPA tissue IHC).
Boster reagents
Best DMRT1 / Doublesex- and mab-3-related transcription factor 1 IHC Antibodies
The IHC-validated anti-DMRT1 antibody has paraffin-section images from rat, mouse and human testis (RP1083 IHC image captions); IF/ICC data are unreported (RP1083 catalog applications).
Real IHC data
Anti-DMRT1 Antibody ®
Cat # RP1083
RP1083 is the sole card and shows rat testis paraffin-section IHC (RP1083 card figure caption). Additional captions show mouse and human testis paraffin-section IHC (RP1083 IHC image captions).
Which to pick: Choose RP1083 for paraffin-section IHC; its figure documents citrate retrieval at pH 6 for 20 minutes and primary antibody at 1 μg/ml (RP1083 card figure caption). For cross-species work, RP1083 lists human, mouse and rat reactivity; it is rabbit-hosted, with clonality unreported (RP1083 catalog). No IF/ICC-validated SKU is listed (RP1083 catalog applications); the IHC caption identifies paraffin sections but does not report the fixative (RP1083 card figure caption).
Each figure is that product's own IHC / IF validation image from its datasheet.
References
- UniProt Consortium. UniProt entry Q9Y5R6 (DMRT1_HUMAN, Doublesex- and mab-3-related transcription factor 1).
- Human Protein Atlas. DMRT1 tissue IHC expression (reliability: Enhanced).
- Human Protein Atlas. DMRT1 subcellular location (ICC-IF): Highest expression in SuSa: 0.8 nTPM.
- Human Protein Atlas. DMRT1 antibody validation summary (1 antibodies).
- DMRT1 repression using a novel approach to genetic manipulation induces testicular dysgenesis in human fetal gonads. Human reproduction (Oxford, England) 2018 — PMC6195803.
- New Insights Into the Role of Follicle-Stimulating Hormone in Sex Differentiation of the Protogynous Orange-Spotted Grouper, Epinephelus coioides. Frontiers in endocrinology 2019 — PMC6529513.
- DMRT1 gene disruption alone induces incomplete gonad feminization in chicken. FASEB journal : official publication of the Federation of American Societies for Experimental Biology 2021 — PMC10266359.
- Sexually dimorphic expression of Dmrt1 and γH2AX in germ stem cells during gonadal development in Xenopus laevis. FEBS open bio 2016 — PMC4821358.
- PubMed PMID:10332030 — UniProt-cited evidence.
- PubMed PMID:10857744 — UniProt-cited evidence.
- PubMed PMID:16617334 — UniProt-cited evidence.
Immunohistochemistry protocol sheet for DMRT1 (Doublesex- and mab-3-related transcription factor 1). Expected localisation Nuclear staining in a subset of spermatogonia (HPA tissue IHC). Antigen retrieval: Citrate pH 6 HIER, heat-mediated (datasheet RP1083). Validated IHC antibody: RP1083 at 0.5-1μg/ml (the product's own IHC validation image is shown). Controls (HPA): positive Testis (Preleptotene spermatocytes); negative Adipose tissue. IHC workflow; specimen preparation unspecified. Protocol steps: 1. Sample: Paraffin-embedded rat testis tissue; fixative not specified (datasheet RP1083); 2. Fixation: Image fixative and duration unreported (datasheet RP1083); 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: Citrate pH 6 , 20 min (datasheet RP1083); 6. Peroxidase block: 3% H2O2, 10 min , room temperature (standard); 7. Blocking: 10% goat serum (datasheet RP1083); 8. Primary antibody: Rabbit anti-DMRT1, 0.5-1μg/ml (datasheet RP1083); 9. Primary incubation: Overnight at 4 °C (datasheet RP1083). Watch for: Fixation: Keep fixation consistent across sections. (standard IHC practice; not target-specific); Caveat: Presumed off-target staining can confound interpretation (HPA tissue IHC); Isoform / epitope: 3 isoforms; verify epitope coverage (UniProt); Regulation: Testis-enriched RNA expression (HPA tissue RNA). Evidence: UniProt Q9Y5R6, HPA tissue IHC · Enhanced, HPA cell-line RNA · Highest expression in SuSa: 0.8 nTPM, Datasheet RP1083, PMC6529513. QR code links to https://www.bosterbio.com/bosterbio-gene-info-cards/DMRT1/immunohistochemistry-ihc-guide.