Human MFG-E8 Antibody

Catalog # Availability Size / Price Qty
AF2767
AF2767-SP
Detection of Human MFG‑E8 by Western Blot.
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Product Details
Citations (2)
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Human MFG-E8 Antibody Summary

Species Reactivity
Human
Specificity
Detects human MFG-E8 in direct ELISAs and Western blots.
Source
Polyclonal Sheep IgG
Purification
Antigen Affinity-purified
Immunogen
Mouse myeloma cell line NS0-derived human MFG-E8
Leu24-Cys387
Accession # Q08431
Formulation
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.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
See below
Simple Western
50 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Examples

Western Blot Detection of Human MFG‑E8 by Western Blot. View Larger

Detection of Human MFG‑E8 by Western Blot. Western blot shows human milk. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human MFG‑E8 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2767) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for MFG‑E8 at approximately 45 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Simple Western Detection  of Human MFG‑E8 by Simple WesternTM. View Larger

Detection of Human MFG‑E8 by Simple WesternTM. Simple Western lane view shows recombinant human (rh) MFG-E8 and human milk, loaded at 0.2 mg/mL. A specific band was detected for MFG‑E8 at approximately 56-58 kDa (as indicated) using 50 µg/mL of Sheep Anti-Human MFG‑E8 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2767) followed by 1:50 dilution of HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Sterile PBS to a final concentration of 0.2 mg/mL.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & 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.

Background: MFG-E8

Milk Fat Globulin Protein E8 (MFG-E8), also known as Lactadherin, MP47, breast epithelial antigen BA46, and SED1, is a pleiotropic secreted glycoprotein that promotes mammary gland morphogenesis, angiogenesis, and tumor progression. MFG-E8 also plays an important role in tissue homeostasis and the prevention of inflammation (1). Human MGF-E8 contains one N-terminal EGF-like domain and two C‑terminal F5/8-type discoidin-like domains (2). It shares 63% and 61% aa sequence identity with comparable regions of mouse and rat MFG-E8, respectively. Shorter isoforms of human MFG-E8 may have N-terminal deletions (beginning near the end of the first discoidin-like domain), internal deletions (lacking either the EGF-like domain or the central region of the second discoidin-like domain), or C‑terminal deletions (truncated within the second discoidin-like domain) (3). A 50 aa internal proteolytic fragment of human MFG-E8 (known as Medin) is a major component of aortic medial amyloid deposits (4). MFG-E8 is released into the milk in complex with lipid-containing milk fat globules. It is also found in multiple other cell types including endothelial cells and smooth muscle cells of the vasculature, immature dendritic cells, at the acrosomal cap of testicular and epididymal sperm, and in epithelial cells of the endometrium (1). MFG-E8 binds to the Integrins alpha V beta 3 and alpha V beta 5 and potentiates the angiogenic action of VEGF through VEGF R2 (5, 6). It reduces inflammation and tissue damage in a variety of settings. MFG-E8 functions as a bridge between phosphatidylserine on apoptotic cells and Integrin alpha V beta 3 on phagocytes, leading to the clearance of apoptotic debris (7). It mediates the engulfment of apoptotic bodies in atherosclerotic plaques and prion-infected brain (8, 9) and of apoptotic B cells during germinal center reactions (10, 11). MFG-E8 also promotes the removal of excess Collagen in fibrotic lungs and the regeneration of damaged intestinal epithelia (12, 13). Its tissue-protective role impairs anti‑tumor immunity and chemotherapy-induced apoptosis (14). MFG-E8 in the breastmilk blocks rotavirus infection in nursing babies (15).

References
  1. Raymond, A. et al. (2009) J. Cell. Biochem. 106:957.
  2. Couto, J.R. et al. (1996) DNA Cell Biol. 15:281.
  3. Yamaguchi, H. et al. (2010) Eur. J. Immunol. 40:1778.
  4. Haggqvist, B. et al. (1999) Proc. Natl. Acad. Sci. USA 96:8669.
  5. Silvestre, J.-S. et al. (2005) Nat. Med. 11:499.
  6. Borges, E. et al. (2000) J. Biol. Chem. 275:39867.
  7. Hanayama, R. et al. (2002) Nature 417:182.
  8. Ait-Oufella, H. et al. (2007) Circulation 115:2168.
  9. Kranich, J. et al. (2010) J. Exp. Med. 207:2271.
  10. Hanayama, R. et al. (2004) Science 304:1147.
  11. Kranich, J. et al. (2010) J. Exp. Med. 205:1293.
  12. Atabai, K. et al. (2009) J. Clin. Invest. 119:3713.
  13. Bu, H.-F. et al. (2007) J. Clin. Invest. 117:3673.
  14. Jinushi, M. et al. (2009) J. Exp. Med. 206:1317.
  15. Kvistgaard, A.S. et al. (2004) J. Dairy Sci. 87:4088.
Long Name
Milk Fat Globule EGF Factor 8
Entrez Gene IDs
4240 (Human); 17304 (Mouse)
Alternate Names
BA46; Breast epithelial antigen BA46; EDIL1; hP47; HsT19888; lactadherin; Lactahedrin; Medin; MFG1; MFGE8; MFG-E8; MFGM; milk fat globule-EGF factor 8 protein; Milk fat globule-EGF factor 8; O-acetyl disialoganglioside synthase; OAcGD3S; SED1; SPAG10; sperm associated antigen 10; sperm surface protein hP47

Product Datasheets

Citations for Human MFG-E8 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Living Neurons with Tau Filaments Aberrantly Expose Phosphatidylserine and Are Phagocytosed by Microglia
    Authors: J Brelstaff, AM Tolkovsky, B Ghetti, M Goedert, MG Spillantin
    Cell Rep, 2018;24(8):1939-1948.e4.
    Species: Human
    Sample Types: Tissue Homogenates
    Applications: Western Blot
  2. MFG-E8 regulates angiogenesis in cutaneous wound healing.
    Authors: Uchiyama A, Yamada K, Ogino S, Yokoyama Y, Takeuchi Y, Udey M, Ishikawa O, Motegi S
    Am J Pathol, 2014;184(7):1981-90.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC

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