Recombinant Human UNC5H3 Fc Chimera Protein, CF Summary
(Ala40 - Asp376)
Accession # O95185
(Pro100 - Lys330)
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CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
|Formulation||Lyophilized from a 0.2 μm filtered solution in PBS.|
|Reconstitution||Reconstitute at 100 μg/mL in sterile PBS.|
|Shipping||The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.|
|Stability & Storage:||Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
Caenorhabditis elegans UNC5 (UNC = behaviorally uncoordinated) and its mammalian homologues (including rat UNC5H1 and H2, mouse UNC5H2 and H3 (also known as rostral cerebellar malformation, RCM), and human UNC5H3 and H4) are transmembrane proteins belonging to the immunoglobulin (Ig) superfamily. All UNC5 family members have two Ig and two thrombospondin type 1 domains in their extracellular regions, as well as a conserved ZU-5 domain, a DCC (Deleted in Colorectal Cancer)-binding domain (DB) and a C-terminal death domain (DD) in their cytoplasmic regions (1, 2).
UNC5 family proteins are receptors for the netrin/UNC6 (netr: Sanskrit for “one who guides”) family of secreted axon guidance cues that are laminin-related proteins. Netrin family proteins can act as a chemoattractant for some axons and as a chemorepellent for others. Besides UNC5, netrin family proteins also bind to the DCC family of type I transmembrane receptors that share sequence similarity with proteins of the NCAM family, and adenosine A2b receptor, a G protein-coupled seven-transmembrane receptor belonging to the adenosine receptor family (3, 4). In vitro, netrin binding to DCC family receptors in the absence of UNC5 is associated with axon attraction. However, the DCC-mediated attraction to netrin is converted to repulsion by binding of UNC5 to the DCC-netrin complex. In vivo, the mechanisms of netrin-dependent axon attraction and repulsion are more complex and may include UNC5-mediated repulsion that is independent of DCC (1, 5) Besides their roles in axon guidance and neuronal migration, the UNC5 and DCC families also act as dependence receptors and exert pro-apoptotic effects in the absence of netrin (6).
Human UNC5H3 cDNA encodes a 931 amino acid (aa) residues type I membrane protein with a putative 39 aa signal peptide and 337 aa extracellular domain. The extracellular domain of human UNC5H3 shares approximately 98%, 73% and 66% amino acid sequence similarity with mouse UNC5H3, rat UNC5H2 and human UNC5H4, respectively.
- Hong, K. et al. (1999) Cell 97:927.
- Leonardo, E.D. et al. (1997) Nature 386:833.
- Culotti, J.B. and D.C. Merz (1998) Curr. Opin. Cell Biol. 10:609.
- Corset, V. (2000) Nature 407:747.
- Merz, D.C. (2001) Genetics 158:1071.
- Llambi, F. et al. (2001) The EMBO Journal 20:2715.
Product Specific NoticesThis product or the use of this product is covered by U.S. Patents owned by The Regents of the University of California. This product is for research use only and is not to be used for commercial purposes. Use of this product to produce products for sale or for diagnostic, therapeutic or drug discovery purposes is prohibited. In order to obtain a license to use this product for such purposes, contact The Regents of the University of California.
U.S. Patent # 5,939,271, 6,277,585, and other U.S. and international patents pending.
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