background:
The Wnt genes are a group of conserved, Cysteine-rich, secreted glycoproteins that are required for numerous developmental processes including embryogenesis, asymmetric cell division and central nervous system (CNS) patterning. Wnt association with the transmembrane spanning receptor frizzled activates dishevelled, which downregulates glycogen synthase kinase (GSK) through serine phosphorylation. Reduced levels of active GSK causes accumulation of b-catenin and subsequent regulation of developmentally significant Wnt target genes. Wnt antagonists such as dickkopf (Dkk), frizzled-related protein (sFRP) and Wnt inhibitory factor-1 (WIF-1), are necessary to ensure normal spatial and temporal patterns of Wnt activity during developmental processes. WIF-1 is a 379-amino acid secreted protein that contains an N-terminal signal sequence, a 150-amino acid WIF domain, five epidermal growth factor-like repeats and a 45-amino acid SLCterminal hydrophilic domain.
Subcellular Location:
Secreted.
Similarity:
Contains 5 EGF-like domains.
Contains 1 WIF domain.
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
WIF-1(Wnt inhibitory factor-1)属于Wnt分子胞外抑制剂中的sFRP(secreted Frizzled-related protein,sFRP) 家族,通过直接与Wnt分子结合, 而抑制Wnt信号通路活性.
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