Human Galectin-7 Biotinylated Antibody

Catalog #: BAF1339 Datasheet / COA / SDS

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BAF1339

All Galectin-7 Antibodies

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Summary Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human Galectin-7 Biotinylated Antibody Summary

Species Reactivity

Human

Specificity

Detects human Galectin‑7 in ELISAs and Western blots. In sandwich immunoassays, approximately 50% cross-reactivity with recombinant mouse (rm) Galectin-7 is observed and less than 0.5% cross-reactivity with recombinant human (rh) Galectin-1, rhGalectin-4, rhGalectin-8 and rmGalectin-3 is observed.

Source

Polyclonal Goat IgG

Purification

Antigen Affinity-purified

Immunogen

E. coli-derived recombinant human Galectin‑7
Ser2-Phe136
Accession # P47929

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.

Label

Biotin

Applications

Recommended Concentration

Sample

Western Blot

0.1 µg/mL

Recombinant Human Galectin‑7 (Catalog # 1339-GA)

Immunohistochemistry

5-15 µg/mL

Immersion fixed paraffin-embedded sections of human skin

Human Galectin-7 Sandwich Immunoassay

Recommended Concentration

Reagent

ELISA Detection (Matched Antibody Pair)

0.1-0.4 µg/mL

Use in combination with:

Capture Reagent: Human Galectin‑7 Antibody (Catalog # AF1339)

Standard: Recombinant Human Galectin-7 Protein (Catalog # 1339-GA)

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.2 mg/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.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

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).

References

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.

Entrez Gene IDs

3963 (Human); 16858 (Mouse)

Alternate Names

GAL7; Gal-7; galectin 7; Galectin7; Galectin-7; HKL-14; lectin, galactoside-binding, soluble, 7; LGALS7; LGALS7A; p53-induced gene 1 protein; PI7; PIG1; TP53I1