Human DKK-4 / Dickkopf 4 ELISA Kit PicoKine®

Human DKK-4 / Dickkopf 4 ELISA Kit PicoKine®

• Background: DKK4 is a membersof the Dickkopf family which are negative regulators of the growth-promoting Wnt / beta-catenin signaling pathway. By FISH, the DKK4 gene was mapped to chromosome 8p11.2-p11.1. The secreted protein contains two cysteine rich regions and is involved in embryonic development through its interactions with the Wnt signaling pathway. Activity of this protein is modulated by binding to the Wnt co-receptor and the co-factor kremen 2. The expression of DKK4 was significantly reduced in hepatocellular carcinomas (HCCs), particularly in HCCs that showed cytoplasmic beta- catenin accumulation. DKK4 expression was also reduced in HCC cell lines. Ectopic expression of DKK4 in 2 HCC cell lines reduced beta-catenin and cyclin D1 protein levels and attenuated beta-catenin activity in reporter gene assays.
• Description: Human DKK-4 / Dickkopf 4 ELISA Kit PicoKine® (96 Tests). Quantitate Human DKK4 in cell culture supernatants, serum and plasma (heparin, EDTA). Sensitivity: 10pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.
• Synonyms: Dickkopf-related protein 4; Dickkopf-4; Dkk-4; hDkk-4; Dickkopf-related protein 4 short form; DKK4
• CAS Number: 7732-18-5
• Gene Name: dickkopf WNT signaling pathway inhibitor 4
• Gene ID: 27121
• UniProt: Q9UBT3
• Reactivity: Human
• Cross Reactivity: There is no detectable cross-reactivity with other relevant proteins.
• Immunogen: Expression system for standard: NS0; Immunogen sequence: L19-L224
• Applications: ELISA
• Sample Type: cell culture supernatants, serum and plasma (heparin, EDTA).
• Detection Range: 156 pg/ml - 10,000 pg/ml
• Sensitivity: <10 pg/ml
• : heparin or EDTA
• Function: Antagonizes canonical Wnt signaling by inhibiting LRP5/6 interaction with Wnt and by forming a ternary complex with the transmembrane protein KREMEN that promotes internalization of LRP5/6. DKKs play an important role in vertebrate development, where they locally inhibit Wnt regulated processes such as antero- posterior axial patterning, limb development, somitogenesis and eye formation. In the adult, Dkks are implicated in bone formation and bone disease, cancer and Alzheimer disease (By similarity).
• Reproducibility:

  Lots	Lot 1 (pg/ml)	Lot 2 (pg/ml)	Lot 3 (pg/ml)	Lot 4 (pg/ml)	Mean (pg/ml)	Standard Deviation	CV (%)
  Sample 1	238	234	223	250	236	9.65	4%
  Sample 2	1092	965	1125	1149	1082	70.93	6.5%
  Sample 3	4513	4306	4063	4001	4220	203.62	4.8%

  *number of samples for each test n=16.
• Storage Conditions: Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)
• Specificity: Natural and recombinant human DKK-4