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- Table of Contents
For paraffin-section CCP110 IHC, use catalog antibody A05058-1 with chromogenic detection (datasheet A05058-1). Compare high-staining bronchial ciliated cells and late spermatids with adipocytes, where staining was not detected, and interpret granular cytoplasmic staining in light of low antibody–RNA consistency (HPA tissue IHC).
Expected localisation, validated protocols, controls and antibodies — the at-a-glance facts below, then the full design guide.
| Expected localisation | Granular cytoplasm (HPA tissue IHC); centrioles (UniProt) | |
| Staining pattern | Granular cytoplasm in most tissues, including testis (HPA tissue IHC) | |
| Antigen retrieval | EDTA pH 8.0 HIER, heat-mediated (datasheet A05058-1) | |
| Positive control | Bronchus+4 more · see all | |
| Negative control | Adipose tissue+1 more · see all |
| Fixation | Keep fixation consistent across sections (standard IHC practice; not target-specific) | |
| Caveat | Antibody staining shows low consistency with RNA (HPA tissue IHC) | |
| Regulation | NEURL4 and CCNF promote degradation (UniProt) | |
| Isoform / epitope | 2 isoforms; epitope differences unspecified (UniProt) |
The catalog antibody protocol uses EDTA retrieval (datasheet A05058-1); the published tissue-section protocol uses citrate retrieval (PMC9996364).
| Sample | Paraffin-embedded human breast cancer tissue; fixative not specified (datasheet A05058-1) |
| Fixation | Image fixative and duration unreported (datasheet A05058-1); 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 A05058-1); 20 min, 95–100 °C (standard) |
| Peroxidase block | 3% H2O2, 10 min, room temperature (standard) |
| Blocking | 10% goat serum (datasheet A05058-1) |
| Primary antibody | Rabbit anti-CCP110, 2-5μg/ml (datasheet A05058-1) |
| Primary incubation | Overnight at 4 °C (datasheet A05058-1) |
| Detection | HRP-conjugated secondary, DAB chromogen (datasheet A05058-1) |
| Counterstain | Hematoxylin, blue, dehydrate and mount (standard) |
| Expected result | CCP110-positive staining in ciliated cells (cell body) of bronchus (HPA tissue IHC: High). HPA tissue profile: Granular cytoplasmic expression in most tissues, including testis. No signal in the no-primary control. |
CCP110 localizes to centrioles and basal bodies (UniProt O43303) and to centriolar satellites in ICC-IF (HPA: approved subcellular location). In tissue IHC, expect granular cytoplasmic staining, especially in bronchial ciliated cell bodies and late spermatids (HPA: High in both). HPA rates its tissue IHC staining Approved but reports low consistency with RNA expression (HPA: tissue IHC reliability). CCP110 has no transmembrane segment (UniProt O43303 topology).
| Granular cytoplasmic stain in bronchial ciliated cell bodies or testicular late spermatids. | This matches HPA's observed pattern and High staining in those cells (HPA: tissue IHC). Score the named cell population and compartment; adjacent cells need not share its intensity (general IHC practice). |
| Predominantly nuclear, sharply membranous, or extracellular deposit. | These compartments do not match CCP110's annotated centrosome, centriole, and basal-body locations (UniProt O43303) or HPA's granular cytoplasmic tissue pattern (HPA: tissue IHC). Check morphology and controls before calling the deposit specific (general IHC practice). |
| Strong stain in adipocytes or smooth muscle cells, especially without the expected positive-cell pattern. | HPA reports CCP110 as not detected in these cells (HPA: adipose tissue; smooth muscle). Investigate cross-reactivity, endogenous detection activity, or nonspecific chromogen deposition with appropriate controls (general IHC practice). |
| Haze or precipitate extends across many cell types and obscures granules. | That distribution cannot establish the reported granular cytoplasmic pattern (HPA: tissue IHC). Review reagent-only controls, blocking, washes, and chromogen development; background has several possible causes (general IHC practice). |
| No convincing stain in bronchial ciliated cells or testicular late spermatids. | Both are reported High by HPA tissue IHC, so an absent signal warrants a run-level check (HPA: bronchus; testis). Confirm tissue preservation and cell identity, then review the antibody's validated IHC-P conditions and positive control (general IHC practice). |
| Cell type and tissue choice | Bronchial ciliated cells and late spermatids provide reported High staining; several glandular, hematopoietic, Purkinje, and glial populations are Medium, while adipocytes and smooth muscle cells are not detected (HPA: tissue IHC). |
| Resolution and cellular state | UniProt places CCP110 at centrioles and basal bodies and describes removal from the mother centriole during ciliogenesis (UniProt O43303). HPA's tissue result is granular cytoplasmic; do not require every chromogenic granule to resolve as an individual centriole (HPA: tissue IHC; general light-microscopy practice). |
| Strength of validation | The listed antibody HPA039402 is IHC Approved, while HPA reports low consistency between tissue staining and RNA expression (HPA: antibody validation; tissue IHC reliability). Treat unexpected cell-type staining as a finding to verify, not an established CCP110 distribution. |
| Isoforms and epitope | UniProt lists 2 isoforms but supplies no antibody epitope or isoform-specific staining result here (UniProt O43303). Check the antibody documentation before assigning differences in tissue staining to an isoform (general IHC practice). |
| IF/ICC Q&A | Where should IF/ICC signal appear? HPA reports an approved centriolar-satellite location in ICC-IF images from REH, U-251MG, and sperm (HPA: subcellular ICC-IF). This supports an IF localization check; it does not set an IHC-P protocol or guarantee the same apparent pattern in sections. |
| Situation | Likely cause | Next action |
|---|---|---|
| High background throughout the section | Nonspecific binding, insufficient washing, or detection activity may obscure the reported granular cytoplasmic pattern (general IHC practice; HPA: tissue IHC). | Compare a reagent-only or primary-omission control; review blocking, washes, and chromogen development, then reassess whether cell-associated granules remain (general IHC practice). |
| Signal appears nuclear or outlines cell membranes | The distribution conflicts with the reported cytoskeletal centrosome/centriole localization and absence of a transmembrane segment (UniProt O43303). | Check tissue morphology and control sections; interpret this signal cautiously unless the expected granular cytoplasmic pattern is also supported (HPA: tissue IHC; general IHC practice). |
| Adipocytes or smooth muscle cells stain strongly | These populations are reported as not detected (HPA: tissue IHC); cross-reactivity or endogenous detection activity is possible (general IHC practice). | Compare a primary-omission control and a known-positive cell population on the same run before assigning specificity (general IHC practice; HPA: bronchus; testis). |
| No signal in the expected positive cells | The assay may have failed, the relevant cells may be absent from the section, or the run conditions may be unsuitable (general IHC practice). | Locate bronchial ciliated cells or late spermatids, both reported High, and verify the antibody's IHC-P conditions and control performance (HPA: tissue IHC; general IHC practice). |
| Weak stain is seen only in a mixed-cell tissue | HPA records Medium staining in several selected populations; whole-section impressions can hide cell-specific signal (HPA: tissue IHC; general IHC practice). | Score the named population and its granular cytoplasmic distribution, then compare with a bronchus or testis positive reference if available (HPA: tissue IHC; general IHC practice). |
| IHC granules do not resemble discrete ICC-IF puncta | HPA describes granular cytoplasmic tissue IHC and centriolar satellites in ICC-IF; the two observations use different preparations and readouts (HPA: tissue IHC; subcellular ICC-IF). | Judge the paraffin-section result against the reported IHC cell types and compartment. Use the separate IF/ICC guide for fluorescence localization work (HPA: tissue IHC; subcellular ICC-IF). |
Comprehensive Human Protein Atlas IHC scoring per tissue (reliability: Approved — 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.
| Tissue | Cell type | Level | Evidence | Source |
|---|---|---|---|---|
| Bronchus | Ciliated cells (cell body) | High | Protein (IHC) | HPA → |
| Testis | Elongated or late spermatids | High | Protein (IHC) | HPA → |
| Adrenal gland | Glandular cells | Medium | Protein (IHC) | HPA → |
| Appendix | Glandular cells | Medium | Protein (IHC) | HPA → |
| Bone marrow | Hematopoietic cells | Medium | Protein (IHC) | HPA → |
Troubleshoot CCP110 staining in paraffin sections by checking retrieval, staining pattern and controls before comparing samples (datasheet A05058-1; UniProt O43303 localisation; standard IHC practice).
Anti-CCP110 A05058-1 shows IHC in human paraffin tumor sections and IF in HELA cells (catalog image captions); listed reactivity covers human, mouse and rat (catalog reactivity).
A05058-1 has IHC images from human paraffin sections of breast cancer, colorectal adenocarcinoma and testicular germ cell tumor (catalog IHC captions). A05058-1 also has an IF image from HELA cells (catalog IF caption).
Which to pick: For tissue IHC, choose A05058-1 based on its human paraffin-section images; the fixative is unreported (catalog IHC captions). For IF/ICC, the same SKU lists both applications and shows IF in HELA cells (catalog applications; catalog IF caption). For mouse or rat samples, A05058-1 lists reactivity with both species, but its supplied images show human samples; the antibody is rabbit-hosted and its clonality is unreported (catalog reactivity, image captions, host and clone fields).