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DKK4 (Dickkopf-related Protein 4, Dickkopf-4, Dkk-4, hDkk-4)

DKK4 (Dickkopf-related Protein 4, Dickkopf-4, Dkk-4, hDkk-4)

Cat no: D3795-20C

Supplier: United States Biological
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DKK4, like DKK1, DKK2, and DKK3, possesses an N-terminal signal peptide and 2 conserved cysteine-rich domains, which are separated by a linker region and contain 10 cysteine residues each. The second cysteine region has a putative lipid-binding function that may facilitate WNT/DKK interactions at the plasma membrane. The linker region contains 50 to 55 amino acids in DKK1, DKK2, and DKK4, whereas in DKK3 it contains only 12 amino acids. All DKKs have several potential sites for cleavage by furin-type proteases. Northern blot analysis detected no expression of DKK4, but RT-PCR analysis detected DKK4 expression in cerebellum, T-cell, esophagus, and lung cDNA libraries. DKK4 blocks Xenopus Wnt8, Wnt3a, and Wnt2b, but not Dsh or Fz8, induction of a secondary axis in frog embryos, indicating that DKKs antagonize WNT function upstream of WNT receptors. Applications: Suitable for use in Western Blot. Other applications not tested. Recommended Dilution: Western Blot: 1-3ug/ml Optimal dilutions to be determined by the researcher. Positive Control: Jurkat lysate Storage and Stability: May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Catalogue number: D3795-20C
Reactivities: Human
Hosts: Goat
Applications: Western Blot
Size: 100ug
Form: Supplied as a liquid in Tris saline, 0.02% sodium azide, pH7.3, 0.5% BSA.
P type: Pab
Isotype: IgG
Purity: Purified by immunoaffinity chromatography.
References: 1. Krupnik VE, Sharp JD, Jiang C, Robison K, Chickering TW, Amaravadi L, Brown DE, Guyot D, Mays G, Leiby K, Chang B, Duong T, Goodearl AD, Gearing DP, Sokol SY, McCarthy SA. Functional and structural diversity of the human Dickkopf gene family. Gene. 1999 Oct 1;238(2):301-13. PMID: 10570958.
Additional info: Recognizes human DKK4.

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