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Sigma-Aldrich

Anti-c-ErbB2/c-Neu (Ab-3) Mouse mAb (3B5)

lyophilized, clone 3B5, Calbiochem®

Synonym(s):

Anti-HER2, Anti-Neu, Anti-ErbB2, Anti-Erythroblastosis Virus, Anti-Human Epidermal Growth Factor

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.43

biological source

mouse

Quality Level

100

antibody form

purified antibody

antibody product type

primary antibodies

clone

3B5, monoclonal

form

lyophilized

does not contain

preservative

species reactivity

mouse, human

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze

isotype

IgG1

shipped in

ambient

storage temp.

2-8°C

target post-translational modification

unmodified

Gene Information

human ... ERBB2(2064)

General description

Anti-c-ErbB2/c-Neu (Ab-3), mouse monoclonal, clone 3B5, recognizes the ~185 kDa c-ErbB2/c-Neu protein in HEK293 cells. It is validated for WB, IF, IP, and IHC on frozen and paraffin sections.
Purified mouse monoclonal antibody generated by immunizing BALB/c mice with the specified immunogen and fusing with Sp2/0.Ag14 cells (see application references). Recognizes the ~185 kDa c-ErbB2/c-Neu protein.
Recognizes the ~185 kDa c-ErbB2/c-Neu protein in HEK293 cells.

Immunogen

Human
a synthetic peptide (TAENPEYLGLDVPV) corresponding to amino acids 1242-1255 from the C-terminal domain of human c-ErbB2/c-Neu

Application


Frozen Sections (2.5 g/ml)
Immunoblotting (2.5 g/ml, see application references)
Immunofluorescence (2.5 g/ml)
Immunoprecipitation (1 g per sample, see application references)
Paraffin Sections (2.5 g/ml, pressure cooker pre-treatment required, see application references)

Warning

Toxicity: Standard Handling (A)

Physical form

Lyophilized from 20 mM ammonium bicarbonate Buffer, 100 µg FAF-BSA.

Reconstitution

Reconstitue the lyophilized antibody with sterile PBS, pH 7.4, or sterile 20 mM Tris-saline (20 mM Tris containing 0.15 M NaCl), pH 7.4, to yield a final concentration of 100 µg/ml. Lyophilized antibodies should be reconstituted at 4°C with occasional gentle mixing for at least 2 h. Store at 4°C until reconstituted, then store in aliquots at -20°C or at 4°C with 0.1% azide. Freezing of aliquots is best for long term storage of reconstituted product; repetitive freezing and thawing should be avoided.

Analysis Note

Negative Control
HepG2 cells or normal skin
Positive Control
SK-BR-3 cells or breast carcinoma tissue

Other Notes

For paraffin sections, we recommend pre-treating with a pressure cooker, but trypsin and heat will also work well. Including 0.05% saponin during staining of paraffin sections may help reduce background. In one study ductal carcinomas in situ displaying large-cell, comedo growth type, were stained while none of 16 ductal carcinomas in situ of small-cell, papillary, or cribriform growth type were stained by this antibody. Antibody should be titrated for optimal results in individual systems.
Mamcs, J.R., et al. 1994. Ann. Surg.219, 332.
Tetu, B., et al. 1994. Cancer73, 2359.
DiFiore, P.P., et al. 1987. Science237, 178.
Slamon, D.J., et al. 1987. Science235, 177.
Varley, J.M., et al. 1987. Oncogene1, 423.
Bargmann, C.I., et al. 1986. Nature319, 226.
Yamamoto, T., et al. 1986. Nature319, 230.
Blick, M., et al. 1984. Blood64, 1234.
Schwab, M., et al. 1984. Cold Spring Harbor Laboratory2, 215.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

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Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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