sFRP-4 Antibody [Alexa Fluor® 488]

• Reactivity: Hu
• Applications: WB
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Alexa Fluor 488

sFRP-4 Antibody [Alexa Fluor® 488] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant human sFRP-4
  Ala22-Val346
  Accession # AAC04617
• Specificity: Detects human sFRP-4 in direct ELISAs and Western blots. In direct ELISAs, approximately 50% cross-reactivity with recombinant mouse (rm) sFRP-4 is observed, and less than 5% cross-reactivity with recombinant human (rh) sFRP-3, rhsFRP-1, and rms
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

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

Alternate Names for sFRP-4 Antibody [Alexa Fluor® 488]

• DDC-4
• Frizzled protein, human endometrium
• FRP-4
• FRP-AP
• frpHE
• FRPHEMGC26498
• FrzB2
• secreted frizzled-related protein 4
• secreted frizzled-related protein 4; secreted frizzled-related protein 4
• sFRP4
• sFRP-4

Background

sFRP-4, also known as DDC-4, Frp, FRPHE and Secreted Frizzled Related Protein 4, is a 50-55 kDa glycoprotein expressed in brain, kidney, lung, ovary, prostate, mammary gland, and endometrium (1, 2). This protein shows complex functions with respect to cell survival: it is up‑regulated with apoptosis during ovulation (3), regulates apoptosis in chondrocytes (4), and promotes apoptosis in mammary glands when expressed in transgenic mice (5). On the other hand, sFRP-4 can also act to enhance growth as it is up‑regulated in endometrial and breast carcinomas (6, 7). Since it is not detected in other carcinomas such as the ovary, colon, and pancreas, this suggest that its role in cancer is likely to be tissue dependent (6). In addition sFRP-4 is characterized as a circulating phosphaturic factor expressed by tumors associated with osteomalacia that antagonizes renal Wnt signaling (7). Of all the secreted frizzled related proteins, sFRP-4 is most closely related to sFRP-3 (1). Mouse and human sFRP-4 proteins share 92% aa identity.

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.