Western blot shows lysates of human brain (cortex) tissue and human brain (hippocampus) tissue. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human GPR56 Antigen Affinity-purified Polyclonal Antibody (Catalog # ...read more
Human peripheral blood lymphocytes were stained with Sheep Anti-Human GPR56 Affinity-purified Polyclonal Antibody (Catalog # AF4634, filled histogram) or control antibody (Catalog # 5-001-A, open histogram), followed by ...read more
Simple Western lane view shows lysates of human brain (motor cortex) tissue and SK‑BR‑3 human breast cancer cell line, loaded at 0.2 mg/mL. A specific band was detected for GPR56 at approximately 116 kDa (as ...read more
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.
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.
Reconstitute at 0.2 mg/mL in sterile PBS.
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for GPR56 Antibody [Unconjugated]
G protein-coupled receptor 56,7-transmembrane protein with no EGF-like N-terminal domains-1
TM7LN4G-protein coupled receptor 56
GPR56 is a member of the LN-TM7 family of adhesion-type 7-transmembrane (TM) G-protein coupled receptors (GPCR) with long extracellular N-termini (1‑3). The 693 amino acid (aa) human GPR56 contains a 25 aa signal sequence, a 377 aa N-terminal extracellular domain (ECD) and seven TM regions separated by short intracellular and extracellular regions. Like other LN-TM7 members, the ECD contains a highly glycosylated mucin-like stalk followed by a GPCR proteolytic cleavage site (GPS) (1, 4). Cleavage of the 60 kDa N-terminus from the 80 kDa full length form is needed for efficient cell surface expression (5, 6). While the cleaved portion may remain non-covalently associated, it has also been found in conditioned medium of cultured cells (5). Human GPR56 shares 71%, 72%, 80%, 80% and 79% aa identity with mouse, rat, canine, equine, and bovine GPR56 within the cleaved ECD. A functional splice variant lacking the GPS site and a non-functional splice variant lacking portions of the TM domains have also been described (4). A human brain developmental disorder, bilateral frontoparietal polymicrogyria, is associated with GPR56 mutations that also show impaired GPS cleavage, intracellular trafficking, and expression at the cell surface (5). GPR56 is widely distributed, with highest mRNA or expressed sequence tag expression in brain, thyroid, skin and female reproductive system (3, 4). GPR56 expression is upregulated during cell transformation and is high in melanomas, glioblastomas and astrocytomas, but downregulated in melanomas with high metastatic potential (2, 6‑8). Although the function of GPR56 is not completely known, it is clearly an adhesion protein (6‑8). Tissue transglutaminase (TG2) is one reported ligand, binding of which inhibits melanoma growth and metastasis (6). Association of GPR56 with the tetraspanin CD81 stabilizes its complex with Gaq/11 for cell signaling (9).
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Little, K.D. et al. (2004) Mol. Biol. Cell 15:2375.
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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