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Recombinant Human sFRP-1 (RMPP-00231526)

Cat. No.: RMPP-00231526

Category: Growth Factors & Cytokines

INQUIRY 5 μg 20 μg
Secreted Frizzled Related Proteins (sFRPs) modulate WNT signaling by binding directly to WNT proteins in a manner that affects their receptor binding and signaling capabilities. sFRP-1 is a widely distributed protein that can bind directly to WNT1, WNT2, and possibly other WNT proteins, and generally exerts anti-proliferative effects consistent with activity as a WNT antagonist. It also inhibits apoptosis, and has been found to be down-regulated in many solid tumors, but up-regulated in uterine leiomyomas. Recombinant Human sFRP-1 is a glycosylated 283 amino acid protein containing a cysteine-rich Frizzled homologous domain. The calculated molecular weight of Recombinant Human sFRP-1 is 32.5 kDa.

Product Features

Source HeLa cells
Purity ≥ 97% by SDS-PAGE gel and HPLC analyses.
Nature Recombinant
Endotoxin Level < 1 Eu/μg
Cross Reactivity Mouse

Protein Information

UniProt ID Q8N474
Molecular Weight 32.5 kDa
Molecular Weight Information The recombinant human sFRP1 consists of 294 amino acids after removal of the signal peptide and has a predicted molecular mass of 34 kDa. In SDS-PAGE under reducing conditions, it migrates with an apparent molecular mass of 38 kDa due to glycosylation.
Sequence Similarities Belongs to the secreted frizzled-related protein (sFRP) family. Contains 1 FZ (frizzled) domain. Contains 1 NTR domain.
Protein Length Full length protein
Cellular Localization Secreted. Cell membrane or extracellular matrix-associated. Released by heparin-binding.
Tissue Specificity Widely expressed. Absent from lung, liver and peripheral blood leukocytes. Highest levels in heart and fetal kidney. Also expressed in testis, ovary, fetal brain and lung, leiomyomal cells, myometrial cells and vascular smooth muscle cells. Expressed in foreskin fibroblasts and in keratinocytes.
Domain The FZ domain is involved in binding with Wnt ligands.
Function Soluble frizzled-related proteins (sFRPS) function as modulators of Wnt signaling through direct interaction with Wnts. They have a role in regulating cell growth and differentiation in specific cell types. SFRP1 decreases intracellular beta-catenin levels (By similarity). Has antiproliferative effects on vascular cells, in vitro and in vivo, and can induce, in vivo, an angiogenic response. In vascular cell cycle, delays the G1 phase and entry into the S phase (By similarity). In kidney development, inhibits tubule formation and bud growth in metanephroi (By similarity). Inhibits WNT1/WNT4-mediated TCF-dependent transcription.

Storage & Shipping

Shipping and Storage Shipped on Dry Ice.

For research use only. Not for clinical use.