Human and Mouse Anti-Rb1 Antibody Product Attributes
Rb1 Previously Observed Antibody Staining Patterns
Observed Subcellular, Organelle Specific Staining Data:
Anti-RB1 antibody staining is expected to be primarily localized to the nucleoplasm.
Observed Antibody Staining Data By Tissue Type:
Variations in Rb1 antibody staining intensity in immunohistochemistry on tissue sections are present across different anatomical locations. An intense signal was observed in glandular cells in the adrenal gland and breast, Purkinje cells in the cerebellum, glandular cells in the cervix, uterine, non-germinal center cells in the lymph node, decidual cells in the placenta, cells in the inner nuclear layer in retina, cells in the photoreceptor layer in retina, ganglion cells in the retina, melanocytes in skin, glandular cells in the thyroid gland, non-germinal center cells in the tonsil and squamous epithelial cells in the vagina. More moderate antibody staining intensity was present in glandular cells in the adrenal gland and breast, Purkinje cells in the cerebellum, glandular cells in the cervix, uterine, non-germinal center cells in the lymph node, decidual cells in the placenta, cells in the inner nuclear layer in retina, cells in the photoreceptor layer in retina, ganglion cells in the retina, melanocytes in skin, glandular cells in the thyroid gland, non-germinal center cells in the tonsil and squamous epithelial cells in the vagina. Low, but measureable presence of Rb1 could be seen inlymphoid tissue in appendix, adipocytes in breast, myoepithelial cells in the breast, neuronal cells in the caudate nucleus, endothelial cells in the colon, cells in the endometrial stroma in endometrium, glandular cells in the endometrium, islets of Langerhans in pancreas, glandular cells in the prostate and cells in the red pulp in spleen. We were unable to detect Rb1 in other tissues. Disease states, inflammation, and other physiological changes can have a substantial impact on antibody staining patterns. These measurements were all taken in tissues deemed normal or from patients without known disease.
Observed Antibody Staining Data By Tissue Disease Status:
Tissues from cancer patients, for instance, have their own distinct pattern of Rb1 expression as measured by anti-Rb1 antibody immunohistochemical staining. The average level of expression by tumor is summarized in the table below. The variability row represents patient to patient variability in IHC staining.
Sample Type | breast cancer | carcinoid | cervical cancer | colorectal cancer | endometrial cancer | glioma | head and neck cancer | liver cancer | lung cancer | lymphoma | melanoma | ovarian cancer | pancreatic cancer | prostate cancer | renal cancer | skin cancer | stomach cancer | testicular cancer | thyroid cancer | urothelial cancer |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Signal Intensity | ++ | + | – | ++ | + | + | ++ | + | + | + | + | + | + | – | + | + | + | – | + | + |
RB1 Variability | ++ | ++ | ++ | ++ | ++ | ++ | ++ | ++ | +++ | ++ | ++ | ++ | ++ | ++ | ++ | ++ | ++ | ++ | ++ | ++ |
Rb1 General Information | |
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Alternate Names | |
The retinoblastoma protein, pRb, RB1 | |
Molecular Weight | |
105kDa | |
Chromosomal Location | |
13q14.2 | |
Curated Database and Bioinformatic Data | |
Gene Symbol | RB1 |
Entrez Gene ID | 5925 |
Ensemble Gene ID | ENSG00000139687 |
RefSeq Protein Accession(s) | XP_011533473, NP_000312 |
RefSeq mRNA Accession(s) | NM_000321, XM_011535171 |
RefSeq Genomic Accession(s) | NG_009009, NC_000013, NC_018924 |
UniProt ID(s) | A0A024RDV3, P06400 |
UniGene ID(s) | A0A024RDV3, P06400 |
HGNC ID(s) | 9884 |
Cosmic ID(s) | RB1 |
KEGG Gene ID(s) | hsa:5925 |
PharmGKB ID(s) | PA295 |
General Description of Rb1. | |
Recognizes a 105kDa phosphoprotein, identified as retinoblastoma (Rb) gene product. Its epitope is localized between aa 703-772. It shows no cross reaction with p107 or p130. It specifically stains the nuclei of BT-20 cells and primary human foreskin fibroblast (HFF) cells. It does not stain the Rb-negative BT549 cells. It reacts with the hyperphosphorylated as well as the un (under) phosphorylated form of the Rb protein. Retinoblastoma gene product plays a key role in cell cycle control. It has been identified as a tumor suppressor gene whose loss of its function leads to tumor development. It is widely expressed in a variety of human tissues including breast, esophageal, squamous cell and cervical carcinoma. |
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