Human ErbB2/Her2 Herstatin Isoform Antibody

Name: Human ErbB2/Her2 Herstatin Isoform Antibody
Brand: R&D Systems
SKU: MAB11291
Rating: 4.7 (3 reviews)

Catalog #: MAB11291 3 Reviews Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB11291
MAB11291-SP

Detection of HER2 in Human Breast Cancer via Multiplex Immunofluorescence staining on COMET™

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human ErbB2/Her2 Herstatin Isoform Antibody Summary

Species Reactivity

Human

Specificity

Detects human ErbB2/Her2 Herstatin Isoform in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human (rh) EGFR or rhErbB3 is observed.

Source

Monoclonal Mouse IgG_2B Clone # 416711

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant human ErbB2/Her2 Herstatin Isoform
Thr23-Gly419
Accession # AAD56009

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Immunohistochemistry

8-25 µg/mL

See below

Multiplex Immunofluorescence

12 µg/mL

Immersion fixed paraffin-embedded sections of human Breast Cancer

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Multiplex Immunofluorescence

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Detection of HER2 in Human Breast Cancer via Multiplex Immunofluorescence staining on COMET™ HER2 was detected in immersion fixed paraffin-embedded sections of human breast cancer using Mouse Anti-Human ErbB2/HER2 Monoclonal Antibody (Catalog # MAB11291) at 12ug/mL at 37 ° Celsius for 4 minutes. Before incubation with the primary antibody, tissue underwent an all-in-one dewaxing and antigen retrieval preprocessing using PreTreatment Module (PT Module) and Dewax and HIER Buffer H (pH 9). Tissue was stained using the Alexa Fluor™ 647 Goat anti-Mouse IgG Secondary Antibody at 1:200 at 37 ° Celsius for 2 minutes. (Yellow; Lunaphore Catalog # DR647MS) and counterstained with DAPI (blue; Lunaphore Catalog # DR100). Specific staining was localized to the cytoplasm. Protocol available in COMET™ Panel Builder.

Immunohistochemistry

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ErbB2/Her2 in Human Breast Cancer Tissue. ErbB2/Her2 was detected in immersion fixed paraffin-embedded sections of human breast cancer tissue using Mouse Anti-Human ErbB2/Her2 Herstatin Isoform Monoclonal Antibody (Catalog # MAB11291) at 8 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Specific labeling was localized to the cytoplasm of cancer cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Immunohistochemistry

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ErbB2/Her2 in Human Breast. ErbB2/Her2 was detected in immersion fixed paraffin-embedded sections of human breast using Mouse Anti-Human ErbB2/Her2 Herstatin Isoform Monoclonal Antibody (Catalog # MAB11291) at 25 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: ErbB2/Her2

Herstatin is a secreted 68 kDa glycoprotein encoded by an alternate transcript of the HER-2/neu (erbB-2) gene containing the N-terminal 304 amino acids (aa) of subdomain I and II, and 79 intron-encoded aa at the C-terminus. It is an endogenous inhibitor of the EGF receptor family that disrupts receptor interactions and inhibits growth of tumor cells that overexpress HER-2.

Long Name

Receptor Tyrosine Protein Kinase ErbB2

Entrez Gene IDs

2064 (Human); 13866 (Mouse); 24337 (Rat); 102146608 (Cynomolgus Monkey)

Alternate Names

CD340 antigen; CD340; c-erb B2/neu protein; EC 2.7.10; EGFR2; ErbB2; HER2; HER-2; HER2EC 2.7.10.1; herstatin; Metastatic lymph node gene 19 protein; MLN 19; MLN19; Neu Oncogene; NEUHER-2/neu; neuroblastoma/glioblastoma derived oncogene homolog; NGL; NGLTKR1; p185erbB2; Proto-oncogene c-ErbB-2; Proto-oncogene Neu; receptor tyrosine-protein kinase erbB-2; TKR1; Tyrosine kinase-type cell surface receptor HER2; v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2(neuro/glioblastoma derived oncogene homolog); v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastomaderived oncogene homolog (avian)