Detects human Galectin-8 in direct ELISAs and Western blots. In direct ELISAs, less than 5% cross‑reactivity with recombinant human (rh) rhGalectin-1 and rhGalectin-3 is observed, and less than 1% cross-reactivity with rhGalectin-2, rhGalectin-4 and rhGalectin-7 is observed.
Polyclonal Goat IgG
E. coli-derived recombinant human Galectin-8 Met1-Trp317 Accession # O00214
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Detection of Human Galectin‑8 by Western Blot.
Western blot shows lysates of LNCaP human prostate cancer cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human Galectin‑8 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1305) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for Galectin‑8 at approximately 35 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Galectin‑8 in Human Lung.
Galectin‑8 was detected in immersion fixed paraffin-embedded sections of human lung using Goat Anti-Human Galectin‑8 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1305) at 15 µg/mL overnight at 4 °C. Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to cell surfaces and cytoplasm. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Detection of Human Galectin‑8 by Simple WesternTM.
Simple Western lane view shows lysates of LNCaP human prostate cancer cell line, loaded at 0.2 mg/mL. A specific band was detected for Galectin‑8 at approximately 40 kDa (as indicated) using 10 µg/mL of Goat Anti-Human Galectin‑8 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1305) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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.
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 to date. 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).
Galectin-8, also known as prostate carcinoma tumor antigen 1 (PCTA1) in human, is a tandem repeat-type galectin. Prototype (single CRD) isoforms arising through alternate gene splicing have also been identified (5). Galectin-8 is highly expressed in lung carcinomas, certain forms of prostate carcinomas, as well as other tumor cells. It binds to a subset of cell surface integrins to modulate ECM-integrin interactions. As a soluble ligand, Galectin-8 can inhibit cell adhesion (6). Immobilized Galectin-8, however, has also been shown to promote cell adhesion (7).Human and mouse Galectin-8 share approximately 80% amino acid homology (4).
Rabinovich, A. et al. (2002) TRENDS in Immunol. 23:313.
Rabinovich, A. et al. (2002) J. Leukocyte Biology 71:741.
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We have 5 reviews tested in 2 species: Human, Mouse.
We have 5 reviews tested in 3 applications: Western Blot, Immunohistochemistry, Immunocytochemistry/Immunofluorescence.
The antibody can detect the higher oligomeric form of galectin-8 here. The 36 kDa version was not detectable due to increasing oligomerization of the protein. Specificity: Specific Sensitivity: Sensitive Buffer: Loading buffer Dilution: 1:1000