NOTUM Antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application
| WB, IHC-P, IF, E |
---|---|
Primary Accession | Q6P988 |
Other Accession | NP_848588, 194394139 |
Reactivity | Human, Mouse, Rat |
Host | Rabbit |
Clonality | Polyclonal |
Isotype | IgG |
Calculated MW | 55699 Da |
Application Notes | NOTUM antibody can be used for detection of NOTUM by Western blot at 0.5 - 1 µg/mL. Antibody can also be used for immunohistochemistry starting at 2.5 µg/mL. For immunofluorescence start at 20 µg/mL. |
Gene ID | 147111 |
---|---|
Target/Specificity | NOTUM; |
Reconstitution & Storage | NOTUM antibody can be stored at 4℃ for three months and -20℃, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures. |
Precautions | NOTUM Antibody is for research use only and not for use in diagnostic or therapeutic procedures. |
Name | NOTUM (HGNC:27106) |
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Function | Carboxylesterase that acts as a key negative regulator of the Wnt signaling pathway by specifically mediating depalmitoleoylation of WNT proteins. Serine palmitoleoylation of WNT proteins is required for efficient binding to frizzled receptors (PubMed:25731175). |
Cellular Location | Secreted {ECO:0000250|UniProtKB:Q9VUX3}. |
Tissue Location | Rarely expressed in adult normal tissues. |
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Provided below are standard protocols that you may find useful for product applications.
Background
NOTUM Antibody: In Drosophila, the notum gene is regulated by the Wingless pathway and encodes a secreted hydrolase that modifies heparan sulfate proteoglycans. The mammalian homolog has been shown to be able to cleave glypicans and can release GPI-anchored proteins from the mammalian cell surface. Like the Drosophilia NOTUM, the mammalian protein can act as a negative regulator of the Wnt signaling pathway. NOTUM is expressed at a low level in most mammalian tissues, although it is overexpressed in a subset of human hepatocellular carcinomas. Its transcription is regulated by beta-catenin/TCF and is a target of the Wnt signaling pathway, forming a negative feedback loop that regulates the expression and activity of the Wnt pathway.
References
Giraldez AJ, Copley RR, and Cohen SM. HSPG modification by the secreted enzyme Notum shapes the wingless morphogen gradient. Dev. Cell2002; 667-76.
Traister A, Shi W, and Filmus J. Mammalian Notum induces the release of glypicans and other GPI-anchored proteins from the cell surface. Biochem. J.2008; 410:503-11.
Torisu Y, Watanabe A, Nonaka A, et al. Human homolog of NOTUM, overexpressed in hepatocellular carcinoma, is regulated transcriptionally by b-catenin/TCF. Cancer Sci.2008; 6:1139-46.
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