EGF Antibody (420610)

Recombinant Rat EGF (Catalog # 3214-EG) stimulates proliferation in the Balb/3T3 mouse embryonic fibroblast cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Rat EGF (75 pg/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Rat EGF Monoclonal Antibody (Catalog # MAB3214). The ND50 is typically 0.75-3.75 µg/mL.

• Reactivity: Rt
• Applications: WB, B/N
• Clone: 420610
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Unconjugated

EGF Antibody (420610) Summary

• Immunogen: E. coli-derived recombinant rat EGF
  Asn974-Arg1026
  Accession # P07522
• Specificity: Detects rat EGF in direct ELISAs and Western blots. In Western blots, no cross-reactivity with recombinant mouse (rm) Epigen, rmEpiregulin, recombinant human (rh) HB-EGF, rhEGF, rmEGF, or rhHRG is observed.
• Source: N/A
• Isotype: IgG2b
• Clonality: Monoclonal
• Host: Mouse
• Gene: EGF
• Purity: Protein A or G purified from hybridoma culture supernatant
• Endotoxin Note: <0.10 EU per 1 μg of the antibody by the LAL method.

Applications/Dilutions

• Dilutions:
  • Western Blot 1 ug/mL
  • Neutralization 0.75-3.75 ug/mL

Packaging, Storage & Formulations

• 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.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
• Preservative: No Preservative
• Purity: Protein A or G purified from hybridoma culture supernatant
• Reconstitution Instructions: Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for EGF Antibody (420610)

• beta-urogastrone
• EGF
• epidermal growth factor (beta-urogastrone)
• epidermal growth factor
• HOMG4
• pro-epidermal growth factor
• URG
• Urogastrone

Background

Epidermal growth factor (EGF) is the founding member of the EGF family that also includes TGF-alpha, amphiregulin (AR), betacellulin (BTC), epiregulin (EPR), heparin‑binding EGF-like growth factor (HB-EGF), epigen, and the neuregulins (NRG)-1 through -6 (1). Members of the EGF family share a structural motif, the EGF‑like domain, which is characterized by three intramolecular disulfide bonds that are formed by six similarly spaced conserved cysteine residues (2). All EGF family members are synthesized as type I transmembrane precursor proteins that may contain several EGF domains in the extracellular region. The mature proteins are released from the cell surface by regulated proteolysis (1). The 1133 amino acid (aa) rat EGF precursor contains nine EGF domains and nine LDLR class B repeats. The mature protein consists of 53 aa and is generated by proteolytic excision of the EGF domain proximal to the transmembrane region (3). Mature rat EGF shares 70% and 77% aa sequence identity with mature human and mouse EGF, respectively. EGF is present in various body fluids, including blood, milk, urine, saliva, seminal fluid, pancreatic juice, cerebrospinal fluid, and amniotic fluid (4). Four ErbB (HER) family receptor tyrosine kinases including EGFR/ErbB1, ErbB2, ErbB3 and ErbB4, mediate responses to EGF family members (5). These receptors undergo a complex pattern of ligand induced homo- or hetero-dimerization to transduce EGF family signals (6, 7). EGF binds ErbB1 and depending on the context, induces the formation of homodimers or heterodimers containing ErbB2. Dimerization results in autophosphorylation of the receptor at specific tyrosine residues to create docking sites for a variety of signaling molecules (5, 8). Biological activities ascribed to EGF include epithelial development, angiogenesis, inhibition of gastric acid secretion, fibroblast proliferation, and colony formation of epidermal cells in culture.

1. Harris, R.C. et al. (2003) Exp. Cell Res. 284:2.
2. Carpenter, G. and Cohen, S. (1990) J. Biol. Chem. 265:7709.
3. Saggi, S.J. et al. (1992) DNA Cell Biol. 11:481.
4. Carpenter, G. and Zendegui, J.G. (1986) Exp. Cell Res. 164:1.
5. Jorissen, R.N. et al. (2003) Exp. Cell Res. 284:31.
6. Gamett, D.C. et al. (1997) J. Biol. Chem. 272:12052.
7. Qian, X. et al. (1994) Proc. Natl. Acad. Sci. 91:1500.
8. Qian, X. et al. (1999) J. Biol. Chem. 274:574.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: EGF
• Uniprot:
  • P07522()