Human GPR56 Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty
MAB46361-100
MAB46361-SP
Human GPR56 Antibody in Western Blot
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Human GPR56 Antibody Summary

Species Reactivity
Human
Specificity
Detects human GPR56 in direct ELISAs.
Source
Recombinant Monoclonal Rabbit IgG Clone # 2446B
Purification
Protein A or G purified from cell culture supernatant
Immunogen
Chinese hamster ovary cell line CHO-derived recombinant human GPR56
Met1-Val345
Accession # Q9Y653
Formulation
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.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
2 µg/mL
See below
Flow Cytometry
0.25 µg/106 cells
See below
Immunocytochemistry
3-25 µg/mL
See below

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.

Data Examples

Western Blot Detection  of Human GPR56 by Western Blot. View Larger

Detection of Human GPR56 by Western Blot. Western blot shows lysates of NS0 mouse myeloma cell line either mock transfected or transfected with human GPR56. PVDF membrane was probed with 2 µg/mL of Rabbit Anti-Human GPR56 Monoclonal Antibody (Catalog # MAB46361) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for GPR56 at approximately 75 kDa (as indicated). GAPDH (Catalog # AF5718) is shown as a loading control.This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Flow Cytometry Detection of GPR56  in Human Peripheral Blood Cells by Flow  Cytometry. View Larger

Detection of GPR56 in Human Peripheral Blood Cells by Flow Cytometry. Human peripheral blood cells were stained with (A) Rabbit Anti-Human GPR56 Monoclonal Antibody (Catalog # MAB46361) or (B) Rabbit IgG isotype control antibody (Catalog # MAB1050) followed by APC-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111) and Mouse anti-Human CD56 PE-conjugated monoclonal antibody (Catalog # FAB2408P). View our protocol for Staining Membrane-associated Proteins.

Immunocytochemistry GPR56  in T47D human breast cancer cell line. View Larger

GPR56 in T47D human breast cancer cell line. GPR56 was detected in immersion fixed T47D human breast cancer cell line (left panel; positive staining) and WM‑115 human malignant melanoma cell line (right panel; negative staining) using Rabbit Anti-Human GPR56 Monoclonal Antibody (Catalog # MAB46361) at 3 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red; Catalog # NL004) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
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.

Background: GPR56

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).

References
  1. Fredriksson, R. et al. (2002) FEBS Lett. 531:407.
  2. Zendman, A.J.W. et al. (1999) FEBS Lett. 446:292.
  3. Liu, M. et al. (1999) Genomics 55:296.
  4. Bjarnadottir, T.K. et al. (2007) Gene 387:38.
  5. Jin, Z. et al. (2007) Hum. Mol. Genet. 16:1972.
  6. Xu, L. et al. (2006) Proc. Natl. Acad. Sci. USA 103:9023.
  7. Shashidhar, S. et al. (2005) Oncogene 24:1673.
  8. Ke, N. et al. (2007) Mol. Cancer Ther. 6:1840.
  9. Little, K.D. et al. (2004) Mol. Biol. Cell 15:2375.
Long Name
G Protein-coupled Receptor 56
Entrez Gene IDs
9289 (Human); 14766 (Mouse); 260326 (Rat)
Alternate Names
BFPP; EGF-TM7-like; G protein-coupled receptor 56,7-transmembrane protein with no EGF-like N-terminal domains-1; GPR56; Protein TM7XN1; TM7LN4; TM7LN4G-protein coupled receptor 56; TM7XN1; TM7XN1DKFZp781L1398

Product Datasheets

FAQs

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Cell and Tissue Staining Kits

Isotype Controls

Normal Rabbit IgG Control

Ctrl,CyTOF-ready

Reconstitution Buffers

Secondary Antibodies

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