Recombinant Anti-ERBB3 (Domain 1 x Domain 3) Biparatopic Antibody, Tandem scFv (Clone 1153 x Clone 920104)

Name: Recombinant Anti-ERBB3 (Domain 1 x Domain 3) Biparatopic Antibody, Tandem scFv (Clone 1153 x Clone 920104)
SKU: VS-0525-YC72
Rating: 5 (1 reviews)

CAT#: VS-0525-YC72

The Recombinant Anti-ERBB3 (Domain 1 x Domain 3) Biparatopic Antibody, Tandem scFv (Clone 1153 x Clone 920104) is a biparatopic antibody (bpAb) crafted to interact with two distinct ERBB3 epitopes. The bpAb's tandem scFv arrangement comprises the 1153 scFv (binding ERBB3 domain 1) N-terminally fused to the 920104 scFv (targeting ERBB3 domain 3). Both domains 1 and 3 are critical for ERBB3 ligand binding. This dual binding offers a more comprehensive blockade of ERBB3 signaling than single monoclonal antibodies.

Gene Expression

Subcellular Location and Protein Expression Figure 1 IF staining of human cell line U-2 OS

Immunofluorescent staining of human cell line U-2 OS shows localization to plasma membrane & actin filaments.

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/25331/if_selected.jpg

Subcellular Location and Protein Expression Figure 2 IHC staining of human testis

Immunohistochemical staining of human testis shows strong cytoplasmic positivity in cells in seminiferus ducts and Leydig cells.

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/45396/ihc_selected.jpg

Subcellular Location and Protein Expression Figure 3 IHC staining of human small intestine

Immunohistochemical staining of human small intestine shows strong cytoplasmic positivity in glandular cells.

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/70524/162441_A_4_2_selected.jpg

Subcellular Location and Protein Expression Figure 4 IHC staining of human kidney

Immunohistochemical staining of human kidney shows strong cytoplasmic and membranous positivity in renal tubular cells.

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/25331/67596_A_8_5_selected.jpg

Subcellular Location and Protein Expression Figure 5 IF staining of human cell line A-431

Immunofluorescent staining of human cell line A-431 shows localization to plasma membrane.

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/25331/659_B11_4_blue_red_green.jpg

Subcellular Location and Protein Expression Figure 6 IF staining of human cell line U-251 MG

Immunofluorescent staining of human cell line U-251 MG shows localization to plasma membrane.

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/25331/658_B11_1_blue_red_green.jpg

Normal Tissue Figure 7 Cerebral cortex

Endothelial cells
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous
Neuronal cells
Staining:High
Intensity: Strong
Quantity:>75%
Location: Cytoplasmic/membranous nuclear
Neuropil
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/45396/115200_B_7_5.jpg

Normal Tissue Figure 8 Colon

Endothelial cells
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous
Glandular cells
Staining:Medium
Intensity: Strong
Quantity: <25%
Location: Cytoplasmic/membranous
Peripheral nerve/ganglion
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/25331/67596_A_9_3.jpg

Normal Tissue Figure 9 Liver

Cholangiocytes
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous
Hepatocytes
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/45396/114856_A_8_4.jpg

Normal Tissue Figure 10 Kidney

Cells in glomeruli
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous
Cells in tubules
Staining:High
Intensity: Strong
Quantity:>75%
Location: Cytoplasmic/membranous

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/45396/114856_A_9_5.jpg

Normal Tissue Figure 11 Testis

Cells in seminiferous ducts
Staining:High
Intensity: Strong
Quantity:>75%
Location: Cytoplasmic/membranous
Leydig cells
Staining:High
Intensity: Strong
Quantity:>75%
Location: Cytoplasmic/membranous

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/45396/114856_A_4_6.jpg

Normal Tissue Figure 12 Skin

Fibroblasts
Staining:High
Intensity: Strong
Quantity:>75%
Location: Cytoplasmic/membranous
Keratinocytes
Staining:High
Intensity: Strong
Quantity:>75%
Location: Cytoplasmic/membranous
Langerhans
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous
Melanocytes
Staining:Medium
Intensity: Moderate
Quantity:>75%
Location: Cytoplasmic/membranous

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/45396/115200_B_8_1.jpg

Normal Tissue Figure 13 Lymph node

Non-germinal center cells
Staining:High
Intensity: Strong
Quantity: 75%-25%
Location: Cytoplasmic/membranous

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/images/45396/114856_A_9_8.jpg

RNA Expression Figure 14 RNA cell line category: Cell line enhanced (Hep G2, OE19, RT4, SK-BR-3, SK-MEL-30, T-47d, WM-115)

Cell lines ordered by descending RNA expression order.

* Image credit: Image credit: Human Protein Atlas https://v21.proteinatlas.org/ENSG00000065361-ERBB3

❮

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Specifications

Host Animal 1
Mouse

Host Animal 2
Mouse

Specificity
Human ERBB3

Species Reactivity
Human

Type
Tandem scFv

Valency
1 + 1

Clone 1
1153

Clone 2
920104

Epitope 1
Domain 1 (for ligand binding)

Epitope 2
Domain 3 (for ligand binding)

Purity
>90%

Purification
Affinity purified

Applications
ELISA, FC

Concentration
Lot specific

Buffer
PBS, pH 7.4

Preservative
No preservatives

Storage
Store at 4°C for short term. Aliquot and store at -20°C for long term. Avoid freeze-thaw cycles.

Long Name
Erb-B2 Receptor Tyrosine Kinase 3

Target

Introduction
This 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.

Alternative Names
HER3; FERLK; LCCS2; VSCN1; ErbB-3; c-erbB3; erbB3-S; MDA-BF-1; c-erbB-3; p180-ErbB3; p45-sErbB3; p85-sErbB3

Gene ID
2065

UniProt ID
P21860

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Related Diseases

EGFR Tyrosine Kinase Inhibitor Resistance

Related Signaling Pathways

ErbB Signaling Pathway

Downloadable Resources

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Datasheet

Datasheet - VS-0525-YC72.pdf

MSDS

MSDS - VS-0525-YC72.pdf

COA

Certificate of Analysis Lookup

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