Recombinant Human Galectin-7 Protein Summary
Product Specifications
Ser2-Phe136
Analysis
Product Datasheets
Carrier Free
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.
1339-GA
| Formulation | Lyophilized from a 0.2 μm filtered solution in MOPS, NaCl, EDTA, DTT and Trehalose with BSA as a carrier protein. |
| Reconstitution | Reconstitute at 200 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. |
| Shipping | The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
1339-GA/CF
| Formulation | Lyophilized from a 0.2 μm filtered solution in MOPS, NaCl, EDTA, DTT and Trehalose. |
| Reconstitution | Reconstitute at 200 μg/mL in sterile PBS. |
| Shipping | The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Reconstitution Calculator
Background: Galectin-7
The galectins constitute a large family of carbohydrate-binding proteins with specificity for N‑acetyl‑lactosamine‑containing glycoproteins. At least 14 mammalian galectins, which share structural similarities in their carbohydrate recognition domains (CRD), have been identified. The galectins have been classified into the prototype galectins (-1, -2, -5, -7, -10, -11, -13, -14), which contain one CRD and exist either as a monomer or a noncovalent homodimer; the chimera galectins (Galectin-3) containing one CRD linked to a nonlectin domain; and the tandem-repeat galectins (-4, -6, -8, -9, -12) consisting of two CRDs joined by a linker peptide. Galectins lack a classical signal peptide and can be localized to the cytosolic compartments where they have intracellular functions. However, via one or more as yet unidentified non-classical secretory pathways, galectins can also be secreted to function extracellularly. Individual members of the galectin family have different tissue distribution profiles and exhibit subtle differences in their carbohydrate-binding specificities. Each family member may preferentially bind to a unique subset of cell-surface glycoproteins (1-4).
Human Galectin-7 is a prototype monomeric galectin. It is specifically expressed in stratified epithelia, notably in epidermis, but is barely detectable in epidermal tumors and significantly down-regulated or absent from squamous carconima cell lines. The Galectin-7 gene is induced by tumor suppressor protein p53 transcriptional activity following genotoxic events. A pro-apoptotic protein, Galectin-7 functions intracellularly upstream of JNK activation and cytochrome-c release. This protein has been shown to increase the susceptibility of keratinocytes to UVB induced apoptosis, an essential processss in the maintenance of epidermal homeostasis. Cell lines transfected with the Galectin-7 gene localized the protein in the nucleus and intracellularly. Human and mouse Galectin-7 share 79% amino acid homology (4-6).
- Rabinovich, A. et al. (2002) TRENDS in Immunol. 23:313.
- Rabinovich, A. et al. (2002) J. Leukocyte Biology 71:741.
- Hughes, R.C. (2002) Biochimie 83:667.
- R&D Systems Cytokine Bulletin, Summer (2002).
- Bernerd, F. et al. (1999) Proc. Natl. Acad. Sci. USA 96:11329.
- Kuwabara, I. et al. (2002) J. Biol. Chem. 277:3487.
Citation for Recombinant Human Galectin-7 Protein
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
1 Citation: Showing 1 - 1
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A novel function for galectin-7: promoting tumorigenesis by up-regulating MMP-9 gene expression.
Authors: Demers M, Magnaldo T, St-Pierre Y
Cancer Res., 2005-06-15;65(12):5205-10.
Species: Human
Sample Types: Whole Cells
Applications: Bioassay
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