Exalpha Biologicals, Inc.

Accelerating the Pace of Discovery

Product Highlight

Mouse anti-M13 phage coat protein g8p

Antibodies recognising M13 filamentous phage coat proteins are instrumental in the selection and detection of phages expressing specific antibody fragments or peptide sequences at their surface. The monoclonal antibodies manufactured and supplied by Exalpha react with either the pIII (g3p) or pVIII (g8p) proteins of M13 filamentous bacteriophage. All antibodies are available in a purified format. The antibodies are fully validated and are suitable for a wide range of techniques including:

  • Flow Cytometry
  • Western Blot
  • Immunohistochemistry
  • Immunoprecipitation
For more information, click here for our M13 Bacteriophage information page.


Two more of our excellent products have been published by PubMed:

Potential actionable targets in appendiceal cancer detected by immunohistochemistry, fluorescent in situ hybridization, and mutational analysis
Borazanci, E., et al., J. Gastrointest. Oncol., 8, 164-172 (2017)
Using Exalpha SPARC Antibody (Cat. No. X1867P)

Molecular mechanism underlying the pharmacological interactions of the protein kinase C-β inhibitor enzastaurin and erlotinib in non-small cell lung cancer cells
Steen, N.V., et al., Am. J. Cancer Res., 7, 816-830 (2017)
Using Exalpha's FITC labeled anti PY20 Antibody (Cat. No. X1017)

Exalpha Biologicals, Inc.


  • Product Code: X1600P
  • Size: 100 µg
  • Price (USD): $438

Cat #

X1600P		 Quantity:      

Data Sheet

Product Name



GPR68; Ovarian Cancer G Protein-Coupled Receptor 1





Product Type

Polyclonal Antibody




Western Blot, IHC, Neutralization


Protein A/G Chromatography


100 µg

Price (USD)



OGR1 (originally identified as GPR68) is a high-affinity receptor for sphingosylphosphorylcholine (SPC). SPC is a member of a class of bioactive lipids which regulate cellular functions. These functions include cell proliferation and growth inhibition, smooth muscle contration and wound healing. SPC also stimulated signalling pathways that induce tyrosine phosphorylation, activate MAP kinases and protein kinase C, modify ion channel activity and increase intracellular Ca2+ concentration. OGR1 is expressed in placenta, lung, liver, spleen, testis, small intestine and peripheral blood leukocytes. It is not found in thymus, ovary, colon, skeletal muscle, kidney or pancreas.


Recombinant protein derived from human OGR1 (GPR68) protein

Positive Control

OGR1 transfected cell lysate


Provided as solution in phosphate buffered saline with 0.08% sodium azide

Customer Storage

Product should be stored at -20°C. Aliquot to avoid freeze/thaw cycles

Product Image

Image Legend

Western blot analysis using OGR1 antibody on cells transfected with OGR1 protein at 10 µg/ml. Blot developed using Pierce’s SuperSignal West Femto Maximum Sensitvity Substrate.

Database Links:



1. Xu, Y., et al. 'Sphingosylphosphorylcholine is a ligand for ovarian cancer G-protein-coupled receptor 1.' Nature Cell Biol., 2, 261-267 (2000)

2. Singh, L.S., et al. ‘Ovarian cancer G protein-coupled receptor 1, a new metastasis suppressor gene in prostate cancer.’ J. Natl. Cancer Inst., 99, 1313-1327 (2007)

3. Yang, M., et al. ‘Expression of and Role for Ovarian Cancer G-protein-coupled Receptor 1 (OGR1) during Osteoclastogenesis’ J. Biol. Chem., 281, 23598-23605 (2006)

Product Specific References

This product has been used in:

1. Iwai, K., et al. ‘RGS18 Acts as a Negative Regulator of Osteoclastogenesis by Modulating the Acid-Sensing OGR1/NFAT Signaling Pathway’ J. Bone Miner. Res. 22, 1612-1620 (2007) (Neutralization)