Arginase 1 (ARG1) is a 35‑40 kDa member of the arginase family of enzymes. It is expressed in multiple cell types, including erythrocytes, hepatocytes, neutrophils, smooth muscle and macrophages. ARG1 demonstrates two distinct functions: in the hepatocyte cytoplasm, it catalyzes the conversion of arginine to ornithine and urea, while in multiple cells, it degrades arginine, thus indirectly downregulating NO synthase (NOS) activity by depriving this enzyme of its substrate. Human ARG1 is 322 amino acids (aa) in length. Its enzyme region comprises aa 9‑309 and contains two Mn atoms. ARG1 is moderately active as a monomer, but highly active as a 105 kDa homotrimer. Trimerization is promoted by nitrosylation of Cys303, creating a regulatory feedback loop with NOS. There are two isoform variants, one that shows an eight aa insertion after Gln43, and another that shows a deletion of aa 204‑289. Full-length human ARG1 shares 87% aa identity with mouse and rat ARG1.
Human Arginase 1/ARG1 PE‑conjugated Antibody
R&D Systems | Catalog # IC8026P
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Label
Antibody Source
Product Specifications
Immunogen
Met1-Lys322
Accession # P05089
Specificity
Clonality
Host
Isotype
Scientific Data Images for Human Arginase 1/ARG1 PE‑conjugated Antibody
Detection of Arginase 1/ARG1 in HepG2 Human Cell Line by Flow Cytometry.
HepG2 human hepatocellular carcinoma cell line was stained with Mouse Anti-Human Arginase 1/ARG1 PE-conjugated Mono-clonal Antibody (Catalog # IC8026P, filled histogram) or isotype control antibody (Catalog # IC0041P, open histogram). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.Detection of Arginase 1/ARG1 in Human PBMCs by Flow Cytometry.
Human peripheral blood mononuclear cells (PBMCs) were stained with Mouse Anti-Human Integrin aM/CD11b APC-conjugated Monoclonal Antibody (Catalog # FAB1699A) and either (A) Mouse Anti-Human Arginase 1/ARG1 PE-conjugated Monoclonal Antibody (Catalog # IC8026P) or (B) Mouse IgG2BPhycoerythrin Isotype Control (Catalog # IC0041P). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.Applications for Human Arginase 1/ARG1 PE‑conjugated Antibody
Intracellular Staining by Flow Cytometry
Sample: HepG2 human hepatocellular carcinoma cell line fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005)
Reviewed Applications
Read 1 review rated 5 using IC8026P in the following applications:
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Stability & Storage
- 12 months from date of receipt, 2 to 8 °C as supplied.
Background: Arginase 1/ARG1
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Alternate Names
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UniProt
Additional Arginase 1/ARG1 Products
Product Documents for Human Arginase 1/ARG1 PE‑conjugated Antibody
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Product Specific Notices for Human Arginase 1/ARG1 PE‑conjugated Antibody
For research use only
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Application: Flow CytometrySample Tested: Peripheral blood neutrophils and synovial fluid neutrophilsSpecies: HumanVerified Customer | Posted 05/15/2020I used this antibody to stain human neutrophils from blood and synovial fluid of arthritis patients. Blood neutrophils had low surface expression of arginase 1, while neutrophils isolated from the synovial fluid of the inflamed knee were found to retain this enzyme on the cell surface. This antibody may be used to stain other cell types as well including macrophages. Cells were stained on ice to minimize internalization of the antibody, but I did not assess cross-reactivity with the mitochondria-association isoform arginase-2.
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Protocols
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