Anti-ErbB-3/HER3 Antibody, clone 1C8 ZooMAb® Rabbit Monoclonal
SIGMA/ZRB1607 - recombinant, expressed in HEK 293 cells
Product Type: Chemical
Immunohistochemistry (Paraffin) Enhanced Validation - Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) human small intestine (A and B) and Negative control (no primary) (C to D) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit IgG and HRP-DAB. Cytoplasmic/membranous staining was observed in glandular cells of human small intestine tissue sections.
Immunohistochemistry (Paraffin) Enhanced Validation - Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) human small intestine (A and B) and Negative control (no primary) (C to D) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit IgG and HRP-DAB. Cytoplasmic/membranous staining was observed in glandular cells of human small intestine tissue sections.
Immunohistochemistry (Paraffin) Enhanced Validation - Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) human small intestine (A and B) and Negative control (no primary) (C to D) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit IgG and HRP-DAB. Cytoplasmic/membranous staining was observed in glandular cells of human small intestine tissue sections.
Immunohistochemistry (Paraffin) Enhanced Validation - Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) human small intestine (A and B) and Negative control (no primary) (C to D) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit IgG and HRP-DAB. Cytoplasmic/membranous staining was observed in glandular cells of human small intestine tissue sections.
Immunohistochemistry (Paraffin) Enhanced Validation - Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) human small intestine (A and B) and Negative control (no primary) (C to D) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit IgG and HRP-DAB. Cytoplasmic/membranous staining was observed in glandular cells of human small intestine tissue sections.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of MCF-7 cells was performed using a 1:1,000 dilution of Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488 (Green). Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the plasma membrane.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of MCF-7 cells was performed using a 1:1,000 dilution of Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488 (Green). Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the plasma membrane.
Immunocytochemistry Enhanced Validation - Recombinant Antibody Technology Immunofluorescent analysis of MCF-7 cells was performed using a 1:1,000 dilution of Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488 (Green). Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the plasma membrane.
Western Blotting Enhanced Validation - Recombinant Antibody Technology HepG2 cell lysate was probed with Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 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 ErbB-3/HER3 (~180 kDa).
Affinity Binding Assay Enhanced Validation - Recombinant Antibody Technology 100 mg/mL of non-specific control peptide (Run 1) or ErbB-3/HER3 peptide (Run 2) were analyzed by affinity binding assay using Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal (Yellow histogram) and visualized with a secondary antibody and 300 μg/mL of Rabbit IgG isotype control (Grey histogram). The binding of this antibody to ErbB-3/HER3 peptide displayed a KD of 3.0 x 10-7, whereas binding to non-specific control peptide displayed a KD of 1.9 x 10-3.
Flow Cytometry Enhanced Validation - Recombinant Antibody Technology Staining of one million MCF-7 cells was performed using 1 μg of Cat. No. ZRB1607, Anti-ErbB-3/HER3, clone 1C8 ZooMAb® Rabbit Monoclonal (Yellow histogram) or the equivalent amount of a Rabbit IgG isotype control (Grey histogram), followed by a PE-conjugated Donkey Anti-Rabbit IgG secondary antibody.
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 | 1C8, recombinant monoclonal |
| conjugate | unconjugated |
| description | recombinant, expressed in HEK 293 cells |
| enhanced validation | recombinant expression Learn more about Antibody Enhanced Validation  |
| epitope sequence | C-terminal |
| 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 148.10 kDa |
| observed mol wt ~180 kDa | |
| packaging | antibody small pack of 25 μL |
| product line | ZooMAb® learn more |
| Protein ID accession no. | NP_001973  |
| purified by | using Protein A |
| Quality Level | 200 |
| recombinant | expressed in HEK 293 cells |
| shipped in | ambient |
| species reactivity | rat, human |
| species reactivity (predicted by homology) | monkey |
| storage temp. | 2-8°C |
| technique(s) | affinity binding assay: suitable |
| flow cytometry: suitable | |
| immunocytochemistry: suitable | |
| immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable | |
| western blot: suitable | |
| UniProt accession no. | P21860 |
| Application: | Quality Control Testing Evaluated by Western Blotting in HepG2 cell lysate. Western Blotting Analysis: A 1:1,000 dilution of this antibody detected ErbB-3/HER3 in HepG2 cell lysate. Tested applications Western Blotting Analysis: A 1:1,000 dilution from a representative lot detected ErbB-3/HER3 in C6 cell lysate. Flow Cytometry Analysis: 1 μg from a representative lot detected ErbB-3/HER3 in one million MCF-7 cells. Immunocytochemistry Analysis: A 1:1,000 dilution from a representative lot detected ErbB-3/HER3 in MCF-7 cells. Affinity Binding Assay: A representative lot of this antibody bound ErbB-3/HER3 with a KD of 3.0 x 10-7 in an affinity binding assay. Immunohistochemistry (Paraffin) Analysis: A 1:100 dilution from a representative lot detected ErbB-3/HER3 in human small intestine tissue sections. Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user |
| Application: | Anti-ErbB-3/HER3, clone 1C8 ZooMAb®, Cat. No. ZRB1607, is a recombinant Rabbit monoclonal antibody that targets ErbB-3/HER3 and is tested in Affinity Binding Assay, Flow Cytometry, Immunocytochemistry, Immunohistochemistry, 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 24 amino acids from the C-terminal region of human Receptor tyrosine-protein kinase erbB-3. |
| Legal Information: | ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Physical form: | Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS with 5% Trehalose, normal appearance a coarse or translucent resin. The PBS/trehalose components in the ZooMAb® formulation can have the appearance of a semi-solid (bead like gel) after lyophilization. This is a normal phenomenon. Please follow the recommended reconstitution procedure in the data sheet to dissolve the semi-solid, bead-like, gel-appearing material. The resulting antibody solution is completely stable and functional as proven by full functional testing. 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 1C8 is a Rabbit recombinant monoclonal antibody that specifically detects Receptor tyrosine-protein kinase erbB-3 (HER3). It targets an epitope within 24 amino acids from the C-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: | Receptor tyrosine-protein kinase erbB-3 (UniProt: P21860; also known as EC:2.7.10.1, Proto-oncogene-like protein c-ErbB-3, Tyrosine kinase-type cell surface receptor HER3) is encoded by the ERBB3 (also known as HER3) gene (Gene ID: 2065) in human. ErbB3 is a single-pass type I membrane glycoprotein that is synthesized with a signal peptide (aa 1-19), which is subsequently cleaved off to generate the mature form that contains an extracellular domain (aa 20-643), a transmembrane domain (aa 644-664), and a cytoplasmic domain (aa 665-1342). Its extracellular domain is formed of two ligand-binding regions (L1 and L2) and two cysteine-rich regions (CR1 and CR2). In the absence of a ligand, the extracellular domain stayed in a locked conformation and is stabilized by interactions between CR1 and CR2 regions that prevents its dimerization. Its tyrosine kinase domain is localized to amino acids 709-966 and shares homology with EGFR and ErbB2 kinase domain. However, the tyrosine kinase activity is impaired due to modified residues and its activation requires the formation of heterodimers with other EGFR family receptors. Known ligands for ErbB3 include neuregulins (NRG) and NRG1 and NRG2 appear to be the most active. Downstream signaling pathways activated include MAPK and PI3 Kinase pathways. ErbB3 has been implicated in cell division and survival and its expression is essential for cell proliferation in several tumor models and transformation of normal tissues. It has also been implicated in acquired resistance to EGFR-tyrosine kinase inhibitors. This ZooMAb® recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Kiavue, N., et al. (2020). Oncogene. 39(3); 487-502). |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Storage Temp. | 2-8°C |