View Featured Offers >>
KLRG1 (2F1) Hamster mAb (FITC Conjugate)
Antibody Conjugates
Monoclonal Antibody

KLRG1 (2F1) Hamster mAb (FITC Conjugate) #41766

Reviews ()
Citations (0)
  1. F
Flow Cytometry Image 1: KLRG1 (2F1) Hamster mAb (FITC Conjugate)
Flow cytometric analysis of live C57BL/6 spleen cells using KLRG1 (2F1) Hamster mAb (FITC Conjugate) (right) or concentration-matched Golden Syrian Hamster Isotype Control (FITC Conjugate) (left), co-stained with NK1.1/CD161 (PK136) Mouse mAb (APC Conjugate) #35986.
To Purchase # 41766
Cat. # Size Qty. Price
100 µg
$ 193

Supporting Data

MW (kDa)
Source/Isotype Hamster (Syrian) IgG

Application Key:

  • WB-Western Blot
  • IP-Immunoprecipitation
  • IHC-Immunohistochemistry
  • ChIP-Chromatin Immunoprecipitation
  • C&T-CUT&Tag
  • DB-Dot Blot
  • IF-Immunofluorescence
  • F-Flow Cytometry

Species Cross-Reactivity Key:

  • H-Human
  • M-Mouse
  • R-Rat
  • Hm-Hamster
  • Mk-Monkey
  • Vir-Virus
  • Mi-Mink
  • C-Chicken
  • Dm-D. melanogaster
  • X-Xenopus
  • Z-Zebrafish
  • B-Bovine
  • Dg-Dog
  • Pg-Pig
  • Sc-S. cerevisiae
  • Ce-C. elegans
  • Hr-Horse
  • Rab-Rabbit
  • All-All Species Expected

Product Description

This Cell Signaling Technology antibody is conjugated to FITC and tested in-house for direct flow cytometric analysis in mouse cells.

Product Usage Information

For optimal flow cytometry results, we recommend 0.5 μg of antibody per test.

Application Dilution
Flow Cytometry (Live) 1:100


Supplied in 10 mM NaH2PO4, 150 mM NaCl, 0.09% NaN3, 0.1% gelatin, pH 7.2. Do not aliquot the antibody. Protect from light. Do not freeze.



View >Collapse >

Flow Cytometry, Live Cell Protocol for Directly Conjugated Antibodies

A. Solutions and Reagents

NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.

  1. 1X Phosphate Buffered Saline (PBS): To prepare 1 L 1X PBS: add 100 ml 10X PBS (#12528) to 900 ml water, mix.
  2. Antibody Dilution Buffer: Purchase ready-to-use Flow Cytometry Antibody Dilution Buffer (#13616), or prepare a 0.5% BSA PBS buffer by dissolving 0.5 g Bovine Serum Albumin (BSA) (#9998) in 100 ml 1X PBS. Store at 4°C.

NOTE: When including fluorescent cellular dyes in your experiment (including viability dyes, DNA dyes, etc.), please refer to the dye product page for the recommended protocol. Visit for a full listing of cellular dyes validated for use in flow cytometry.

B. Immunostaining

NOTE: Count cells using a hemocytometer or alternative method.

NOTE: If using whole blood, lyse red blood cells and wash by centrifugation prior to immunostaining.

NOTE: Human Fc receptors cross-react with rabbit IgG. When cells of interest express high levels of Fc receptor protein (for example, macrophage/monocyte lineages), pre-incubate live cells with human Fc block prior to immunostaining with rabbit antibodies.

NOTE: Optimal centrifugation conditions will vary depending upon cell type and reagent volume. Generally, 150-300g for 1-5 minutes will be sufficient to pellet the cells.

  1. Aliquot desired number of cells into tubes or wells. (Generally, 5x105 to 1x106 cells per assay.)
  2. Pellet cells by centrifugation and remove supernatant.
  3. Resuspend cells in 100 µl of diluted primary antibody, prepared in Antibody Dilution Buffer at a recommended dilution or as determined via titration.
  4. Incubate for 30 min to 1 hr on ice. Protect from light.
  5. Wash by centrifugation in Antibody Dilution Buffer. Discard supernatant. Repeat.
  6. Resuspend cells in 200-500 µl of Antibody Dilution Buffer and analyze on flow cytometer.

posted June 2017

revised January 2022

Protocol Id: 1504

Specificity / Sensitivity

KLRG1 (2F1) Hamster mAb (FITC Conjugate) recognizes endogenous levels of total KLRG1 protein. This antibody detects an epitope within the extracellular domain.

Species Reactivity:


Source / Purification

This monoclonal antibody was purified from tissue culture supernatant via affinity chromatography. The purified antibody was conjugated under optimal conditions, with unreacted dye removed from the preparation.


Killer cell lectin-like receptor G1 (KLRG1), also known as mast cell function associated antigen (MAFA), is an inhibitory type II transmembrane lectin-like receptor (1,2). This glycoprotein is expressed on a subset of natural killer (NK) and T cells (3,4). KLRG1 is considered a marker of T cell senescence (5,6). Studies have shown that KLRG1 is upregulated by MHC Class I molecule expression and these interactions can be mediated by lectin-like class I-specific Ly49 inhibitory receptors (1,3). KLRG1 triggering interferes with the activating TCR pathway and inhibits cytotoxicity (2). Specifically, KLRG1 binds to cadherin family ligands (E-, N-, and R-), inhibiting NK cell cytotoxicity (7). The effect that KLRG1 has on NK cell differentiation, maturation, homeostasis, and activation, make it an important target when studying innate immune regulation and chronic viral infections (8).
The 2F1 antibody is widely used to detect KLRG1 on mouse cells (1).
  1. Hanke, T. et al. (1998) Eur J Immunol 28, 4409-17.
  2. Beyersdorf, N.B. et al. (2001) Eur J Immunol 31, 3443-52.
  3. Corral, L. et al. (2000) Eur J Immunol 30, 920-30.
  4. Blaser, C. et al. (1998) J Immunol 161, 6451-4.
  5. Henson, S.M. and Akbar, A.N. (2009) Age (Dordr) 31, 285-91.
  6. Rodriguez, I.J. et al. (2020) Front Immunol 11, 604591.
  7. Ito, M. et al. (2006) J Exp Med 203, 289-95.
  8. Wang, J.M. et al. (2013) J Virol 87, 11626-36.

Pathways & Proteins

Explore pathways + proteins related to this product.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit our Trademark Information page.