PRODUCT CODE: ER0106

HER2 / ErbB2 Rabbit Polyclonal Antibody (ER0106)

Applications

  • WB

  • ICC

  • IHC-P

REACTIVITY

  • Human

Western blot analysis of HER2 / ErbB2 on different lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER0106, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.<br />
Positive control: <br />
Lane 1: SK-Br-3 cell lysate<br />
Lane 2: SKOV-3 cell lysate
  • Western blot analysis of HER2 / ErbB2 on different lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER0106, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.<br />
Positive control: <br />
Lane 1: SK-Br-3 cell lysate<br />
Lane 2: SKOV-3 cell lysate
  • ICC staining of HER2 / ErbB2 in SKOV-3 cells (green). Formalin fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 10 minutes at room temperature and blocked with 1% Blocker BSA for 15 minutes at room temperature. Cells were probed with the primary antibody (ER0106, 1/50) for 1 hour at room temperature, washed with PBS. Alexa Fluor®488 Goat anti-Rabbit IgG was used as the secondary antibody at 1/1,000 dilution. The nuclear counter stain is DAPI (blue).
  • Immunohistochemical analysis of paraffin-embedded human stomach carcinoma tissue using anti-HER2 / ErbB2 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER0106, 1/50) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
  • Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using anti-HER2 / ErbB2 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER0106, 1/200) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
  • Immunohistochemical analysis of paraffin-embedded human placenta tissue using anti-HER2 / ErbB2 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER0106, 1/1,000) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Western blot analysis of HER2 / ErbB2 on different lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER0106, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.
Positive control:
Lane 1: SK-Br-3 cell lysate
Lane 2: SKOV-3 cell lysate

Applications

  • WB

  • ICC

  • IHC-P

REACTIVITY

  • Human

SPECIFICATIONS

Product Type

Rabbit polyclonal primary

Product Name

HER2 / ErbB2 Rabbit Polyclonal Antibody (ER0106)

Immunogen

Synthetic peptide.

Host

Rabbit

Positive Control

SKOV-3, SKBR-3, human stomach carcinoma tissue

Conjugation

Unconjugated

Clonality

Polyclonal

PROPERTIES

Form

Liquid

Storage Condition

Store at +4C after thawing. Aliquot store at -20C or -80C. Avoid repeated freeze / thaw cycles.

Storage Buffer

1*PBS (pH7.4), 0.2% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.

Concentration

1 ug/ul

PURIFICATION

Peptide affinity purified

MOLECULAR WEIGHT

140kDa

Isotype

IgG

APPLICATION DILUTION

  • WB

  • 1:500-1:1,000

  • ICC

  • 1:200

  • IHC-P

  • 1:200

TARGET

UNIPROT #

PROTEIN NAME

HER2 / ErbB2

SYNONYMS

Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog antibody; C erb B2/neu protein antibody; CD340 antibody; CD340 antigen antibody; Cerb B2/neu protein antibody; CerbB2 antibody; Erb b2 receptor tyrosine kinase 2 antibody; ERBB2 antibody; ERBB2_HUMAN antibody; HER 2 antibody; HER 2/NEU antibody; HER2 antibody; Herstatin antibody; Human epidermal growth factor receptor 2 antibody; Metastatic lymph node gene 19 protein antibody; MLN 19 antibody; MLN19 antibody; NEU antibody; NEU proto oncogene antibody; Neuro/glioblastoma derived oncogene homolog antibody; Neuroblastoma/glioblastoma derived oncogene homolog antibody; NGL antibody; p185erbB2 antibody; Proto-oncogene c-ErbB-2 antibody; Proto-oncogene Neu antibody; Receptor tyrosine-protein kinase erbB-2 antibody; TKR1 antibody; Tyrosine kinase type cell surface receptor HER2 antibody; Tyrosine kinase-type cell surface receptor HER2 antibody; V erb b2 avian erythroblastic leukemia viral oncogene homolog 2 (neuro/glioblastoma derived oncogene homolog) antibody; V erb b2 avian erythroblastic leukemia viral oncogene homolog 2 antibody; V erb b2 avian erythroblastic leukemia viral oncoprotein 2 antibody; V erb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian) antibody; V erb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog antibody; Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian) antibody

SEQUENCE SIMILARITIES

Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.

TISSUE SPECIFICITY

Expressed in a variety of tumor tissues including primary breast tumors and tumors from small bowel, esophagus, kidney and mouth.

POST-TRANSLATIONAL MODIFICATION

Autophosphorylated. Autophosphorylation occurs in trans, i.e. one subunit of the dimeric receptor phosphorylates tyrosine residues on the other subunit (Probable). Ligand-binding increases phosphorylation on tyrosine residues. Signaling via SEMA4C promotes phosphorylation at Tyr-1248. Dephosphorylated by PTPN12.

SUBCELLULAR LOCATION

Cell membrane

FUNCTION

HER2 is a member of the human epidermal growth factor receptor (HER/EGFR/ERBB) family. Amplification or overexpression of this oncogene has been shown to play an important role in the development and progression of certain aggressive types of breast cancer. In recent years the protein has become an important biomarker and target of therapy for approx. 30% of breast cancer patients. Over-expression is also known to occur in ovarian, stomach, and aggressive forms of uterine cancer, such as uterine serous endometrial carcinoma. The expression of HER2 is regulated by signaling through estrogen receptors. Normally, estradiol and tamoxifen acting through the estrogen receptor down-regulate the expression of HER2. However, when the ratio of the coactivator AIB-3 exceeds that of the corepressor PAX2, the expression of HER2 is upregulated in the presence of tamoxifen, leading to tamoxifen-resistant breast cancer.