Anti-CBX2 Antibody, clone 3I14 ZooMAb® Rabbit Monoclonal
SIGMA/ZRB1084 - recombinant, expressed in HEK 293 cells
Product Type: Chemical
Immunohistochemistry (Paraffin) Enhanced Validation - Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) human skin (A) and Negative control (no primary) (B) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit IgG and HRP-DAB. Low-intensity nuclear staining was observed in epithelium of human skin tissue sections.
Immunohistochemistry (Paraffin) Enhanced Validation - Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) human skin (A) and Negative control (no primary) (B) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit IgG and HRP-DAB. Low-intensity nuclear staining was observed in epithelium of human skin tissue sections.
Immunohistochemistry (Paraffin) Enhanced Validation - Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) human skin (A) and Negative control (no primary) (B) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit IgG and HRP-DAB. Low-intensity nuclear staining was observed in epithelium of human skin tissue sections.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of HeLa cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of HeLa cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of HeLa cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of A431 cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of A431 cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of A431 cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of HepG2 cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of HepG2 cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of HepG2 cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of NIH3T3 cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of NIH3T3 cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of NIH3T3 cells was performed using a 1:100 dilution of Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488. Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the nucleus.
Western Blotting Enhanced Validation - Recombinant Antibody Technology Nuclear extracts from HEK293 cells (Lane 1), NIH3T3 cells (Lane 2), HeLa cells (Lane 3), and L6 (Lane 4) were probed with Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal (1:1,000 dilution). Proteins were visualized using a Donkey Anti-Rabbit IgG secondary antibody conjugated to HRP and a chemiluminescence detection system. Arrow indicates CBX2 (~56 kDa).
Affinity Binding Assay Enhanced Validation - Recombinant Antibody Technology 100 mg/mL of non-specific control peptide (Run 1) or CBX2 peptide (Run 2) were analyzed by affinity binding assay using Cat. No. ZRB1084, Anti-CBX2, clone 3I14 ZooMAb® Rabbit Monoclonal. The binding of this antibody to CBX2 peptide displayed a KD of 8.7 x 10-7, whereas binding to non-specific control peptide displayed a KD of 2.9 x 10-3.
12 Principles of Green Chemistry: Principle 1—Waste Prevention. This product has a smaller environmental footprint through reduction of waste in the manufacturing process.
12 Principles of Green Chemistry: Principle 4—Designing Safer Chemicals
Chemical products should be designed to affect their desired function while minimizing their toxicity.
Chemical products should be designed to affect their desired function while minimizing their toxicity.
12 Principles of Green Chemistry: Principle 6—Design for Energy Efficiency. This product was re-engineered to utilize less energy in the manufacturing process.
| antibody form | purified antibody |
| antibody product type | primary antibodies |
| biological source | rabbit |
| clone | 3I14, monoclonal |
| recombinant monoclonal | |
| conjugate | unconjugated |
| enhanced validation | recombinant expression Learn more about Antibody Enhanced Validation  |
| form | lyophilized |
| greener alternative category | Aligned |
| greener alternative product characteristics | Waste Prevention Designing Safer Chemicals Design for Energy Efficiency Learn more about the Principles of Green Chemistry . |
| isotype | IgG |
| mol wt | calculated mol wt ~56.08 kDa |
| observed mol wt ~56 kDa | |
| packaging | antibody small pack of 25 μL |
| product line | ZooMAb® learn more |
| Quality Level | 200 |
| recombinant | expressed in HEK 293 cells |
| shipped in | ambient |
| species reactivity | rat, mouse, human |
| species reactivity (predicted by homology) | canine |
| storage temp. | 2-8°C |
| technique(s) | affinity binding assay: suitable |
| immunocytochemistry: suitable | |
| immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable | |
| western blot: suitable | |
| UniProt accession no. | Q14781  |
| Application: | Quality Control Testing Evaluated by Western Blotting in HEK293 cell nuclear extract. Western Blotting Analysis: A 1:1,000 dilution of this antibody detected CBX2 in HEK293 cell nuclear extract. Tested Applications Western Blotting Analysis: A 1:1,000 dilution from a representative lot detected CBX2 in nuclear extract from NIH3T3 cells, HeLa cells, and L6 cells. Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected CBX2 in HeLa, A431, HepG2, and NIH 3T3 cells. Immunohistochemistry (Paraffin) Analysis: A 1:100 dilution from a representative lot detected CBX2 in human skin tissue sections. Affinity Binding Assay: A representative lot of this antibody bound CBX2 peptide with a KD of 8.7 x 10-7 in an affinity binding assay. Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user |
| Application: | Anti-CBX2, clone 3I14 ZooMAb®, Cat. No. ZRB1084, is a recombinant Rabbit monoclonal antibody that specifically targets CBX2 and is tested for use in Affinity Binding Assay, Immunocytochemistry, Immunohistochemistry (Paraffin), and Western Blotting. |
| Disclaimer: | Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals. |
| General description: | We are committed to bringing you greener alternative products, which adhere to one or more of The 12 Principles of Green Chemistry.This antibody is Preservative-free, produced without the harm or sacrifice of animals and exceptionally stable to allow for ambient shipping and storage if needed and thus aligns with "Waste Prevention", "Designing Safer Chemicals" and "Design for Energy Efficiency". Click here for more information. |
| General description: | ZooMAb antibodies represent an entirely new generation of recombinant monoclonal antibodies. Each ZooMAb antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb antibodies are reliably available and ready to ship when you need them. |
| Immunogen: | KLH-conjugated linear peptide corresponding to 25 amino acids from the N-terminal region of human Chromobox protein homolog 2 (CBX2). |
| Legal Information: | ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Physical form: | Purified recombinant mouse monoclonal antibody IgG, lyophilized in PBS, 5% Trehalose, normal appearance a coarse or translucent resin. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 μL. |
| Reconstitution: | 300 μg/mL after reconstitution at 25 μL per vial. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type. |
| Specificity: | Clone 3I14 is a ZooMAb® rabbit recombinant monoclonal antibody that specifically detects Chromobox protein homolog 2 (CBX2). It targets an epitope within 25 amino acids from the N-terminal region. |
| Storage and Stability: | Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 μL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws. |
| Target description: | Chromobox protein homolog 2 (UniProt: Q14781; also known as CBX2) is encoded by the CBX gene (Gene ID: 84733) in human. CBX2 is a component of a Polycomb group (PcG) multiprotein PRC1-like complex that is expressed during interphase and metaphase. It plays a role in the lineage differentiation of the germ layers in embryonic development and is involved in sexual development, acting as activator of NR5A1 expression. It is shown to be localized in distinct foci on chromatin and in chromocenters. CBX2 is reported to be expressed from week 9 to week 25 post-fertilization in both male and female gonads. It is required to maintain the transcriptionally repressive state of many genes throughout development via chromatin remodeling and modification of histones. Disruption of this gene in murine models is shown to result in male-to-female gonadal sex reversal. Levels of CBX2 are reported to decrease in macrophages upon viral infection and knockdown of CBX2 gene in macrophages can inhibit virus-induced production of interferon-. CBX2 is reported to bind and recruit Lysine demethylase 6B (Jmjd3) to the IFN- promoter, leading to demethylation of H3K27me3 and increased transcription of IFN-β. Mutations in CBX2 gene are associated with gonadal dysgenesis in humans. This ZooMAb® recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Sun, D., et al. (2019). Protein Cell 10(4); 285-294). |
| WGK Germany | WGK 1 |
| Storage Temp. | 2-8°C |