Home » LRRC32/GARP » Human LRRC32/GARP Alexa Fluor® 700-conjugated Antibody
Human LRRC32/GARP Alexa Fluor® 700-conjugated Antibody
Detects human LRRC32/GARP in ELISAs. In direct ELISAs, no cross-reactivity with recombinant
mouse LRRC32 is observed.
Monoclonal Rat IgG2a Clone # 855151
recombinant human LRRC32/GARP Accession # Q14392
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Alexa Fluor 700
0.25-1 µg/106 cells
Human peripheral blood mononuclear cells (PBMCs) stimulated to induce Regulatory T Cells (Tregs) with Anti-CD3, Anti-CD28, Recombinant Human TGF‑ beta 1 (Catalog # 240-B), and Recombinant Human IL‑2 (Catalog # 202-IL)
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.
Preparation and Storage
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Leucine-rich repeat protein 32 (LRRC32), also known as GARP (glycoprotein A repetitions predominant), is an 80 kDa type I transmembrane glycoprotein (1). Mature human LRRC32 consists of a 608 amino acid (aa) extracellular domain (ECD) that contains 22 leucine‑rich repeats, a 21 aa transmembrane segment, and a 14 aa cytoplasmic domain (2, 3). Within the ECD, human LRRC32 shares approximately 80% aa sequence identity with mouse and rat LRRC32. LRRC32 is widely expressed during embryogenesis and on adult platelets (4, 5). Human LRRC32 is identified as a lineage specific key receptor for human T cells. It is selectively expressed on activated FOXP3+ regulatory T cells (Treg) (6‑10). LRRC32 expression promotes the acquisition of a Treg phenotype including reduced cellular proliferation, reduced cytokine secretion, and the capacity to suppress the proliferation of naïve T cells (6‑8). LRRC32 binds directly to the TGF-beta latency associated peptide (LAP) and tethers latent TGF-beta on the surface of activated Treg cells (9, 10). The presentation of TGF-beta on Tregs contributes to their ability to suppress naïve T cell proliferation (11).
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Wang, R. et al. (2009) Proc. Natl. Acad. Sci. 106:13439.
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Tran, D.Q. et al. (2009) Proc. Natl. Acad. Sci. 106:13445.
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Vignali, D.A. et al. (2008) Nat. Rev. Immunol. 8:523.
Leucine-rich Repeat Containing 32/Glycoprotein A Repetitions Predominant
Entrez Gene IDs:
2615 (Human); 434215 (Mouse)
D11S833E; D11S833Eleucine-rich repeat-containing protein 32; GARP; GARPGarpin; Garpin; Glycoprotein A repetitions predominantgarpin; leucine rich repeat containing 32; LRRC32
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