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05-104

Sigma-Aldrich

Anti-EGFR Antibody, clone LA22

clone LA22, Upstate®, from mouse

Synonym(s):

Receptor tyrosine-protein kinase ErbB-1, avian erythroblastic leukemia viral (v-erb-b) oncogene homolog, cell growth inhibiting protein 40, cell proliferation-inducing protein 61, epidermal growth factor receptor, epidermal growth factor receptor (avian

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified antibody

antibody product type

primary antibodies

clone

LA22, monoclonal

species reactivity

human

manufacturer/tradename

Upstate®

technique(s)

immunocytochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable

isotype

IgG2a

NCBI accession no.

UniProt accession no.

shipped in

dry ice

target post-translational modification

unmodified

Gene Information

human ... EGFR(1956)

General description

Protein kinases are enzymes that transfer a phosphate group from a phosphate donor onto an acceptor amino acid in a substrate protein. By this basic mechanism, protein kinases mediate most of the signal transduction in eukaryotic cells, regulating cellular metabolism, transcription, cell cycle progression, cytoskeletal rearrangement and cell movement, apoptosis, and differentiation. The protein kinase family is one of the largest families of proteins in eukaryotes, classified in 8 major groups based on sequence comparison of their tyrosine (PTK) or serine/threonine (STK) kinase catalytic domains. Epidermal Growth factor receptor (EGFR) is the prototype member of the type 1 receptor tyrosine kinases. EGFR overexpression in tumors indicates poor prognosis and is observed in tumors of the head and neck, brain, bladder, stomach, breast, lung, endometrium, cervix, vulva, ovary, esophagus, stomach and in squamous cell carcinoma.

Specificity

Recognizes the sequence of Ala351-Asp364 of human EGF receptor, Mr 180kDa, (based on numbering without the signal peptide) (Wu et al., 1989).

Immunogen

A431 membrane proteins

Application

Anti-EGFR Antibody, clone LA22 is an antibody against EGFR for use in IC, IP & WB.
Immunoprecipitation:
4 μg of a previous lot immunoprecipitated EGF receptor from 500 μg of A431 RIPA lysate.

Immunocytochemistry:
5 μg/mL of previous lots of the antibody showed positive immunostaining for EGF receptor in A431 cells fixed with 4% paraformaldehyde followed by 100% methanol.
Research Category
Signaling
Research Sub Category
Growth Factors & Receptors

Quality

Evaluatd by RIPA lysates from human A431 cells under reducing conditions.

Western Blot Analysis:
0.5-2 μg/mL of this antibody detected EGF receptor in RIPA lysates from human A431 cells under reducing conditions.

Target description

180 kDa

Linkage

Replaces: 04-337; 04-338

Physical form

Format: Purified
Protein G Purified
Purified mouse monoclonal IgG2a in storage buffer (0.1 M Tris-glycine, pH 7.4, 0.15 M NaCl, 0.05% sodium azide). Frozen solution.

Storage and Stability

Stable for 1 year at -20ºC from date of receipt.
Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.

Analysis Note

Control

Positive Antigen Control: Catalog #12-301, non-stimulated A431 cell lysate. Add 2.5µL of 2-mercaptoethanol/100µL of lysate and boil for 5 minutes to reduce the preparation. Load 20µg of reduced lysate per lane for minigels.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

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

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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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Anuradha Gullapalli et al.
Molecular biology of the cell, 17(3), 1228-1238 (2006-01-13)
Sorting nexin 1 (SNX1) and SNX2 are the mammalian homologues of the yeast Vps5p retromer component that functions in endosome-to-Golgi trafficking. SNX1 is also implicated in endosome-to-lysosome sorting of cell surface receptors, although its requirement in this process remains to
J Li et al.
The Journal of biological chemistry, 274(16), 11209-11219 (1999-04-10)
To evaluate the mechanisms by which epidermal growth factor (EGF) regulates actin-based cellular processes such as cell migration, we first examined the effects of EGF on cell adhesion, which is essential for cell migration. In mouse B82L fibroblasts transfected with
Itziar Pinilla-Macua et al.
Methods in cell biology, 130, 347-367 (2015-09-12)
Endocytosis and postendocytic sorting of epidermal growth factor (EGF) receptor (EGFR) are the major regulators of EGFR signaling. EGFR endocytosis and ubiquitin-dependent lysosomal targeting are also considered to be the prototypic experimental system for studying the molecular mechanisms of stimulus-induced
Targeted gene transfer system using a streptavidin-transforming growth factor-alpha chimeric protein.
A Garcia-Espana, S Biria, M Malumbres, B Levin, D Meruelo, A Pellicer
Dna and Cell Biology null
Jillian M Prendergast et al.
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Targeted therapeutics that can differentiate between normal and malignant tumor cells represent the ideal standard for the development of a successful anti-cancer strategy. The Sialyl-Thomsen-nouveau antigen (STn or Sialyl-Tn, also known as CD175s) is rarely seen in normal adult tissues

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