Anti-ERBB2 immunotoxin 4D5 (scFv)-RTA (CAT#: AGTO-G022R)
This immunotoxin was achieved by conjugating/fusing the Anti-ERBB2 scFv to ricin toxin. It was expressed in CHO and purified with affinity chromatography. The immunotoxin selectively binds to tumor cells. Then the ricin A chain is incorporated into the cell by receptor-mediated endocytosis, blocking ribosomal protein synthesis and ultimately leading to cell death. It was designed for treatment of SK-OV-3 tumor xenografts.
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(Immunofluorescent staining of human cell line U-251 MG shows localization to plasma membrane.)
* Image credit: Human Protein Atlas v21.proteinatlas.org/images/1060/169_D12_1_selected.jpg

(Immunofluorescent staining of human cell line A-431 shows localization to plasma membrane.)
* Image credit: Human Protein Atlas v21.proteinatlas.org/images/1338/if_selected.jpg

* Image credit: Human Protein Atlas v21.proteinatlas.org/images/1383/4682_B_5_1_val_selected.jpg

(Immunohistochemical staining of human rectum shows weak cytoplasmic positivity in glandular cells.)
* Image credit: Human Protein Atlas v21.proteinatlas.org/images/43/ihc_selected.jpg

(Immunohistochemical staining of human urinary bladder shows moderate cytoplasmic and membranous positivity in urothelial cells.)
* Image credit: Human Protein Atlas v21.proteinatlas.org/images/20416/ihc_selected.jpg

(Collecting ducts Staining: Low Intensity: Moderate Quantity: <25% Distal tubules Staining: Low Intensity: Moderate Quantity: <25%)
* Image credit: Human Protein Atlas v21.proteinatlas.org/images/43/1054_A_7_5.jpg

(Glandular cells Staining: Medium Intensity: Moderate Quantity: 75%-25% Location: Cytoplasmic/ membranous Myoepithelial cells Staining: Medium Intensity: Moderate Quantity: 75%-25% Location: Cytoplasmic/ membranous)
* Image credit: Human Protein Atlas v21.proteinatlas.org/images/20416/45831_B_3_4.jpg

(Cell lines ordered by descending RNA expression order)
* Image credit: Human Protein Atlas v21.proteinatlas.org/ENSG00000141736-ERBB2
Specifications
- Host Species
- Mouse
- Species Reactivity
- Human
- Clone
- 4D5
- Molecule Class
- scFv-RTA
- Toxin Description
- Ricin consist of two polypeptide chains, A and B, linked by means of disulfide bridge(s). Cytotoxicity is associated with the A chain and its 15 inhibition of protein synthesis in nucleated cells. The B chain is essentially a delivery vehicle for the A chain. The B chain recognizes polysaccharide units at the surface of cells and creates a high affinity interaction with such units. Once the B chain binds with polysaccharide units at 20" the celL surface, the A chain is incorporated into the cell, blocking ribosomal protein synthesis and ultimately leading tocell death. The use of ricin A chain is preferred in this invention.
- Applications
- This product is suitable for use in cytotoxicity assay, functional assay and immunotherapy.
- Related Disease
- SK-OV-3 tumor xenografts
Target
- Alternative Names
- ERBB2; erb-b2 receptor tyrosine kinase 2; NEU; NGL; HER2; TKR1; CD340; HER-2; MLN 19; HER-2/neu; receptor tyrosine-protein kinase erbB-2; herstatin; p185erbB2; proto-oncogene Neu; c-erb B2/neu protein; proto-oncogene c-ErbB-2; metastatic lymph node gene 19 protein; human epidermal growth factor receptor 2; neuro/glioblastoma derived oncogene homolog; tyrosine kinase-type cell surface receptor HER2; neuroblastoma/glioblastoma derived oncogene homolog; v-erb-b2 avian erythroblastic leukemia viral oncoprotein 2; v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2; v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog; Deglycosylated ricin A chain; Ricin A chain; Ricin A; Ricin; RTA; RT; RA; dgRTA; dgRA; dgA
- Gene ID
- 2064
- UniProt ID
- P04626
Related Resources
Product Notes
This is a product of Creative Biolabs' Hi-Affi™ recombinant antibody portfolio, which has several benefits including:
• Increased sensitivity
• Confirmed specificity
• High repeatability
• Excellent batch-to-batch consistency
• Sustainable supply
• Animal-free production
See more details about Hi-Affi™ recombinant antibody benefits.
Downloads
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For research use only. Not intended for any clinical use. No products from Creative Biolabs may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative Biolabs.
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