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CD177

Products

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All listed services and products are For Research Use Only. Do Not use in any diagnostic or therapeutic applications.

Background

CD177 is a cell surface glycoprotein of the Ly-6/uPAR superfamily, also known as neutrophil antigen-1 (NA-1), and has molecular weight of 58–64 kDa and is glycosylphosphatidylinositol (GPI)-anchored. The CD177 gene on human chromosome 19q13 encodes this itself. CD177 has a very restricted expression, it is only found on neutrophils, precursors of granulocytes in the bone marrow and a small population of myeloid cells. Importantly, CD177 expression is polymorphic in the healthy population, 100% negative neutrophils in some individuals and a varying percentage of neutrophils express protein in most people. The expression of this variable has a homologous pseudogene localization close to the functional CD177 locus that can interfere with transcription. NB1 was first recognized as a protein targeted by alloantibodies responsible for neonatal alloimmune neutropenia and later rediscovered as PRV-1, using differential expression profiling in the blood of polycythemia vera patients.

Fig.1 CD177 Inhibits Neutrophil Extracellular Trap Formation. (OA Literature)Fig.1 Mechanisms of CD177-regulated NETs in AP and AP-associated ALI.1

CD177 Protein Function: A Versatile Regulator of Neutrophil Activation and Inflammation

CD177 serves multiple purposes that fall under several and related biological umbrellas:

  • Neutrophil Transmigration and Endothelial Interaction: CD177 directly binds to PECAM-1 (CD31) on endothelial cells and enhances adhesion and transmigration of neutrophils across the vascular wall during inflammation.
  • Neutrophil Extracellular Trap (NET) Modulation: CD177 positive neutrophils are more prone to NETosis in response to inflammatory signals; In contrast, recombinant CD177 protein inhibited NET formation by decreasing reactive oxygen species (ROS) production and myeloperoxidase (MPO) release suggesting a context-dependent regulatory mechanism.
  • Thromboinflammation and Platelet Crosstalk: CD177-positive neutrophils aggregate with activated platelets to form neutrophil-platelet complexes, which promote thromboinflammatory pathology.

CD177 Membrane Protein Product

Get an edge in your neutrophil biology and inflammation research using our curated recombinant CD177 protein catalog. We acknowledge that the GPI-anchored topology, extensive glycosylation, and polymorphic expression of CD177 can pose distinct production challenges. We provide recombinant CD177 proteins in formats selected according to specific research requirements, including constructs suitable for structural studies, ligand-binding assays, antibody development, and related biochemical applications. Available products may include full-length or extracellular-domain constructs, depending on the specific product and intended use. Appropriate quality assessment is applied according to the product format and research application.

CD177 Protein Product

Not finding the membrane protein product you need? Contact us to start your one-stop custom service!

CD177 Stable Cell Line Product

Reliable, reproducible cellular models are essential to decipher CD177-mediated biology and assess candidate therapeutics. We offer stable cell lines designed to express wild-type or engineered forms of human, mouse and rat CD177, as well as lines for loss-of-function studies with modulated endogenous expression. These platforms are specifically designed to enable high-throughput NET formation assays, quantification of neutrophil-platelet aggregates, studies of PECAM-1 binding and profiling of inflammatory cytokines – affording the experimental high-fidelity necessary for multi-phase research programs.

CD177 Stable Cell Line Product

Not finding the stable cell line product you need? Contact us to start your one-stop custom service!

CD177 Recombinant Antibody Product

We also offer high-affinity recombinant antibodies against CD177 that are designed to accommodate the diverse demands of multiple research needs. With superior specificity, sensitivity and batch-to-batch consistency than traditional polyclonal antibodies, these monoclonal antibodies can be produced by leveraging the latest recombinant expertise & technologies. Availability of CD177 recombinant antibodies validated for WB, ELISA, FCM, IF, ICC, IHC and IP provides the ability to detect and quantify native CD177 in various sample types such as neutrophil lysates, bone marrow preparations and inflammatory disease model-derived tissue sections.

CD177 Recombinant Antibody Product

Not finding the recombinant antibody product you need? Contact us to start your one-stop custom service!

Product Features

  • High Purity & Activity: High purity and verified integrity for dependable downstream work.
  • Diverse Expression Systems: Choice of expression formats to match routine or specialized projects.
  • Species Reactivity: Products available for human, mouse, pig, and other species.
  • Validated Applications: Application-tested to deliver consistent signals across common lab workflows.
  • Exceptional Lot-to-Lot Consistency: Tight lot-to-lot control for reproducible performance.
  • Customization Options: Flexible customization of tags, labels, or packaging upon request.

Custom CD177 Membrane Protein and Antibody Discovery Services

In addition to catalog products, we provide custom services for protein and antibody discovery and development. Using our deep experience in neutrophil biology and myeloproliferative disease research, we could help:

  • Custom CD177 Receptor Production: Tailored expression, purification, and characterization of challenging multi-domain receptor constructs.
  • Custom Antibody Development: From antigen design to antibody engineering (monoclonal, polyclonal, recombinant) for specific research applications.
  • Stable Cell Line Development: Generation of bespoke stable cell lines expressing your target of interest.
  • Functional Assay Development: Designing and executing assays to assess receptor activation and ligand.

Frequently Asked Questions (FAQ)

  1. Are CD177 antibodies cross-reactive to nonhuman primate or rodent orthologs for performing translational studies in neutrophils and inflammation?

    Yes the immunogen is from a region sufficiently conserved across mammalian species to enable detection of human, cynomolgus monkey and rat neutrophils in whole blood with one set of reagents rather than having to use various species-specific ones.

  2. Can your anti-CD177 antibodies be used for immunofluorescence staining for paraformaldehyde-fixed neutrophils?

    Yes, some clone have been reliably demonstrated to produce membranous staining with similar patterns in light fixing neutrophil suspensions and archival bone marrow cells following antigen retrieval that correlate with the localization of both granulocytes and myelocytes. Validation encompasses peptide competition supporting epitope specificity.

  3. Do you provide stable cell lines that co-express CD177 and proteinase 3 for efficient modeling of neutrophil membrane complex assembly and alloantibody-mediated activation?

    Yes, we have created dual-stable lines that co-express both full length CD177 and proteinase 3 in an unregulated manner from separate loci. By providing a common reference point for surface co-localization and PR3-binding capacity in each batch, these fluorescently labelled stably-integrated lines can be used as a generic cellular background to enable studies of membrane complex dynamics without the requirement for repeated transient transfection.

  4. Can I order larger sizes or custom formulations for high-throughput screening?

    Yes. We offer flexible pricing tiers to accommodate your academic and industrial scale-up needs. To get a price quote, please send us your expected volume and timeline via the inquiry portal.

Reference
  1. Zhang, Junxian, et al. "CD177 inhibits neutrophil extracellular trap formation and protects against acute pancreatitis in mice." Journal of Clinical Medicine 12.7 (2023): 2533. Under Open Access license CC BY 4.0, without modification. https://doi.org/10.3390/jcm12072533
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