05-471 | Anti-erbB-3/HER-3 Antibody, clone H3.105.5

100 µg  
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      Replacement Information

      Key Spec Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      H, MIP, NEUTMPurifiedMonoclonal Antibody
      Catalogue Number05-471
      Brand Family Upstate
      Trade Name
      • Upstate
      DescriptionAnti-erbB-3/HER-3 Antibody, clone H3.105.5
      Alternate Names
      • Tyrosine kinase-type cell surface receptor HER3
      • lethal congenital contracture syndrome 2
      • v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 3
      • v-erb-b2 erythroblastic leukemia viral oncogene homolog 3 (avian)
      Background InformationerbB3 (HER3, c-erbB3) is a receptor tyrosine kinase (RTK). erbB3 is one of four members of the EGFR/ErbB family of receptor tyrosine kinases. The ErbB family of receptors are a subfamily of four closely related receptor tyrosine kinases: EGFR (ErbB-1), HER2/c-neu (ErbB-2), Her 3 (ErbB-3) and Her 4 (ErbB-4). Though erbB3 is membrane bound and can bind its ligand, it does not have an active kinase domain so it can not transmit this signal without first forming a heterodimer with other EGFR family members. This heterodimerization then leads to proliferation and differentiation. erbB3 is also known to bind Phosphoinositide 3-kinase (PI3 Kinase, PI3K) though six tyrosine phosphorylation sites that PI3K can bind to, which results in the activation of Akt/PKB. erbB3 is known to be amplified in numerous cancers including breast and prostate.
      Product Information
      • Widely expressed.
      PresentationPurified mouse monoclonal IgG1 in buffer containing 10 mM PBS, pH 7.4. Frozen solution.
      ApplicationAnti-erbB-3/HER-3 Antibody, clone H3.105.5 detects level of erbB-3/HER-3 & has been published & validated for use in IP, NEUT.
      Key Applications
      • Immunoprecipitation
      • Neutralizing
      Application NotesImmunoprecipitation:
      Reported to immunoprecipitate unoccupied erbB-3/HER-3 receptors.
      Biological Information
      ImmunogenExtracellular domain of recombinant human erbB-3/HER-3 oncoprotein. Clone H3.105.5

      Antibody Class
      IgG1, antibody produced by P3X63Ag8U1 (P3U1) x Balb/c spleen cells. Purified by ammonium sulfate precipitation, Sephacryl S-300 gel filtration and DEAE-52 chromatography.
      ConcentrationPlease refer to the Certificate of Analysis for the lot-specific concentration.
      SpecificityThis antibody recognizes erbB-3, Mr 185 kDa, but not EGF receptor, erbB-2/HER-2, or erbB-4/HER-4
      Antibody Class
      IgG1, antibody produced by P3X63Ag8U1 (P3U1) x Balb/c spleen cells. Purified by ammonium sulfate precipitation, Sephacryl S-300 gel filtration and DEAE-52 chromatography.
      Species Reactivity
      • Human
      • Mouse
      Species Reactivity NoteHuman and mouse, other species not tested.
      Antibody TypeMonoclonal Antibody
      Entrez Gene Number
      Entrez Gene SummaryThis gene encodes a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. This membrane-bound protein has a neuregulin binding domain but not an active kinase domain. It therefore can bind this ligand but not convey the signal into the cell through protein phosphorylation. However, it does form heterodimers with other EGF receptor family members which do have kinase activity. Heterodimerization leads to the activation of pathways which lead to cell proliferation or differentiation. Amplification of this gene and/or overexpression of its protein have been reported in numerous cancers, including prostate, bladder, and breast tumors. Alternate transcriptional splice variants encoding different isoforms have been characterized. One isoform lacks the intermembrane region and is secreted outside the cell. This form acts to modulate the activity of the membrane-bound form. Additional splice variants have also been reported, but they have not been thoroughly characterized.
      Gene Symbol
      • ERBB3
      • c-erbB-3
      • c-erbB3
      • erbB-3
      • p180-ErbB3
      • p85-sErbB3
      • p45-sErbB3
      • ErbB-3
      • erbB3-S
      • MGC88033
      • HER3
      • MDA-BF-1
      Purification MethodProtein G Purified
      UniProt Number
      UniProt SummaryFUNCTION: SwissProt: P21860 # Binds and is activated by neuregulins and NTAK.
      SIZE: 1342 amino acids; 148098 Da
      SUBUNIT: Heterodimer with each of the other ERBB receptors (Potential). Interacts with CSPG5 and PA2G4.
      SUBCELLULAR LOCATION: Isoform 1: Cell membrane; Single-pass type I membrane protein. & Isoform 2: Secreted.
      TISSUE SPECIFICITY: Epithelial tissues and brain.
      DOMAIN: SwissProt: P21860 The cytoplasmic part of the receptor may interact with the SH2 or SH3 domains of many signal-transducing proteins.
      PTM: Ligand-binding increases phosphorylation on tyrosine residues and promotes its association with the p85 subunit of phosphatidylinositol 3-kinase (By similarity).
      DISEASE: SwissProt: P21860 # Overexpressed in a subset of human mammary tumors. & Defects in ERBB3 are the cause of lethal congenital contracture syndrome type 2 (LCCS2) [MIM:607598]; also called Israeli Bedouin multiple contracture syndrome type A. LCCS2 is an autosomal recessive neurogenic form of a neonatally lethal arthrogryposis that is associated with atrophy of the anterior horn of the spinal cord. The LCCS2 syndrome is characterized by multiple joint contractures, anterior horn atrophy in the spinal cord, and a unique feature of a markedly distended urinary bladder. The phenotype suggests a spinal cord neuropathic etiology.
      SIMILARITY: Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily. & Contains 1 protein kinase domain.
      Molecular Weight185 kDa
      Physicochemical Information
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceRoutinely evaluated by receptor neutralization.

      Receptor neutralization assay:
      10 µg/mL of this lot blocked heregulin mediated activation of the erbB-3/HER-3 receptor in MCF-7 cells.
      Usage Statement
      • 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.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at -20°C from date of receipt.

      Handling Recommendations:
      Upon receipt, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.
      Packaging Information
      Material Size100 µg
      Transport Information
      Supplemental Information




      Safety Data Sheet (SDS) 

      Certificates of Analysis

      TitleLot Number
      Anti-erbB-3/HER-3, clone H3.105.5 (mouse monoclonal IgG1) - DAM1394758 DAM1394758
      Anti-erbB-3/HER-3, clone H3.105.5 (mouse monoclonal IgG1) - DAM1406270 DAM1406270
      Anti-erbB-3/HER-3, clone H3.105.5 (mouse monoclonal IgG1) - DAM1406275 DAM1406275
      Anti-erbB-3/HER-3, clone H3.105.5 (mouse monoclonal IgG1) - DAM1406280 DAM1406280
      Anti-erbB-3/HER-3, clone H3.105.5 (mouse monoclonal IgG1) - DAM1406285 DAM1406285
      Anti-erbB-3/HER-3, clone H3.105.5 - 2118919 2118919
      Anti-erbB-3/HER-3, clone H3.105.5 - 2367756 2367756
      Anti-erbB-3/HER-3, clone H3.105.5 - 0608036853 0608036853
      Anti-erbB-3/HER-3, clone H3.105.5 - 0701050246 0701050246
      Anti-erbB-3/HER-3, clone H3.105.5 - 16638 16638


      Reference overviewPub Med ID
      Nuclear actin filaments recruit cofilin and actin-related protein 3, and their formation is connected with a mitotic block.
      Kalendová, A; Kalasová, I; Yamazaki, S; Uličná, L; Harata, M; Hozák, P
      Histochemistry and cell biology  142  139-52  2014

      Show Abstract
      25002125 25002125
      Inhibition of doxorubicin-induced HER3-PI3K-AKT signalling enhances apoptosis of ovarian cancer cells.
      Martin Bezler,Jan G Hengstler,Axel Ullrich
      Molecular oncology  6  2012

      Show Abstract
      22841590 22841590
      Ionizing radiation stimulates existing signal transduction pathways involving the activation of epidermal growth factor receptor and ERBB-3, and changes of intracellular calcium in A431 human squamous carcinoma cells.
      D G Todd, R B Mikkelsen, W K Rorrer, K Valerie, R K Schmidt-Ullrich
      Journal of receptor and signal transduction research  19  885-908  1999

      Show Abstract
      10533979 10533979
      An immunological approach reveals biological differences between the two NDF/heregulin receptors, ErbB-3 and ErbB-4.
      Chen, X, et al.
      J. Biol. Chem., 271: 7620-9 (1996)  1996

      8631797 8631797
      C-erbB-3 in human breast carcinoma: expression and relation to prognosis and established prognostic indicators
      Travis, A, et al
      Br J Cancer, 74:229-33 (1996)  1996

      8688326 8688326
      Isolation and characterization of ERBB3, a third member of the ERBB/epidermal growth factor receptor family: evidence for overexpression in a subset of human mammary tumors
      Kraus, M H, et al
      Proc Natl Acad Sci USA, 86:9193-7 (1989)  1989

      2687875 2687875

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      Life Science Research > Antibodies and Assays > Primary Antibodies