In Vivo Star Anti-Mouse Ly6G/Ly6C (Gr-1) Antibody

Cat # Size Price Quantity
5153011 mg$160
5153025 mg$400
51530325 mg$1100

Product Details


CloneRB6-8C5
ApplicationELISA, WB, Flow cytometry, IHC, ICC, animal model study
Host SpeciesCHO cells
ReactivityMouse
FormatLiquid
Target NameLy-6G, Lymphocyte antigen 6 complex, locus G, Gr-1
Product DescriptionIn Vivo Grade Recombinant Anti-mouse Ly6G/Ly6C (Gr-1) Monoclonal Antibody
IsotypeRat IgG2b Kappa
Antibody TypeRecombinant
Regulatory StatusRUO
Purity>95% by reducing SDS-PAGE
Endotoxin< 1 EU per 1 mg of the protein by the LAL method.
Storage Conditions4ºC
GradeIn vivo
Recommended UsageThis product is suitable for in vivo animal use. Optimal amounts need to be determined empirically for each experiment.
RRIDAB_3739429
Research AreasNeutrophils, plasmacytoid Dendritic cells
See All FormatsClone RB6-8C5

Background Information


Ly6G and Ly6C are distinct but closely related cell surface proteins belonging to the Ly-6/uPAR (urokinase-type plasminogen activator receptor) superfamily. In mouse immunology, they are critical differentiation antigens used to identify and classify myeloid cells, particularly neutrophils and monocytes. While often discussed together due to historical antibody cross-reactivity, they mark different cell populations and have distinct biological roles. Structurally, both Ly6G and Ly6C are small, highly glycosylated proteins (approximately 21–25 kDa) that lack a transmembrane domain. Instead, they are tethered to the outer leaflet of the cell membrane via a glycosylphosphatidylinositol (GPI) anchor. This structure allows them to associate laterally with other membrane proteins to transduce signals, despite lacking an intracellular signaling domain of their own.

Unlike classical receptors that bind specific soluble cytokines, Ly6G and Ly6C function primarily through interactions with adhesion molecules, particularly beta-2 integrins (such as CD11b/CD18). They do not have "ligands" in the traditional sense of a hormone or growth factor; rather, they modulate cell adhesion and migration. For example, Ly6G has been shown to regulate the recruitment of neutrophils to sites of inflammation by modulating the function of surface integrins. Similarly, Ly6C is involved in the trafficking of monocytes from the bone marrow to tissues and lymph nodes, influencing their ability to adhere to the endothelium.

In mouse research, these markers are fundamental for distinguishing immune cell subsets, though they are often a source of confusion due to the "Gr-1" antigen. The widely used anti-Gr-1 antibody (clone RB6-8C5) binds to an epitope shared by both Ly6G and Ly6C. Consequently, using anti-Gr-1 depletes or stains both neutrophils (which are Ly6G-high) and monocytes (which express varying levels of Ly6C). To achieve specificity, researchers now use clone 1A8, which binds exclusively to Ly6G, allowing for the specific identification or depletion of neutrophils without affecting monocytes.

Ly6C is particularly valuable for subdividing monocyte populations into functional subsets. "Inflammatory" monocytes are characterized as Ly6C-high (and CCR2-positive), and are rapidly recruited to sites of infection where they differentiate into macrophages or dendritic cells. In contrast, "patrolling" monocytes are Ly6C-low (and CX3CR1-high), functioning to survey the vasculature and promote tissue repair. This dichotomy based on Ly6C expression has become a standard paradigm in studying murine innate immunity and inflammation.

Data Sheets


In Vivo Star Anti-Mouse Ly6G/Ly6C (Gr-1) Antibody TDS

Related Protocols


Direct ELISA Protocol

Western Blot Protocol

Flow Cytometry Protocol

Frequently Asked Questions


What are In Vivo Star Biofunctional Antibodies?
In Vivo Star antibodies are premium-grade monoclonal antibodies purified and formulated specifically for use in animal studies. Each lot is manufactured under stringent quality controls to ensure the low endotoxin levels, high purity, and functional activity required for reliable in vivo results.

How are these antibodies different from standard research antibodies (e.g., for Western blot or flow cytometry)?
Standard research antibodies are optimized for in vitro detection assays and may contain preservatives, carrier proteins (like BSA), or higher endotoxin levels unsuitable for injection. In Vivo Star antibodies are formulated in injectable-grade, azide-free, low-endotoxin buffers and validated for functional bioactivity in living systems rather than just antigen binding.

What endotoxin and purity specifications do these antibodies meet?
All In Vivo Star antibodies are tested and certified to meet low-endotoxin thresholds (typically <1 EU/mg, lot-dependent) using the LAL (Limulus Amebocyte Lysate) assay, and are purified to ≥95% purity by SEC-HPLC or SDS-PAGE. Exact specifications are provided on the Certificate of Analysis (CoA) for each lot.

Are these antibodies azide-free and carrier-free?
All In Vivo Star antibodies are formulated without sodium azide and without carrier proteins such as BSA or gelatin, since both can interfere with animal physiology or immune readouts during in vivo studies.

Do you provide isotype controls?
Matched isotype control antibodies (same host species, isotype, and formulation) are available upon request for most clones to support proper experimental controls.

How should In Vivo Star antibodies be stored and handled?
Store at 4°C for short-term use and avoid repeated freeze-thaw cycles, which can reduce bioactivity; aliquoting is recommended for long-term storage per the product-specific storage instructions on the Certificate of Analysis. Always confirm storage conditions and expiration on the CoA that accompanies each lot, as these can vary slightly by antibody.

Have a product or application question? Consult our FAQs or contact us.