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Catalog # HM2324

Arginase I, Human, mAb D1.2


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Monoclonal antibody D1.2 reacts specifically with Arginase I, the final enzyme in the urea cycle, which
is responsible for the hydrolysis of arginine to urea and ornithine. The highest concentration of the
enzyme is present in the liver in which the bulk of ureagenesis occurs. Two types of arginases are
known: Arginase I and II. The cytosolic enzyme found primarily in liver is Arginase I, a 35 kD protein
that circulates as trimer. Arginase II is exclusively located in the mitochondrion. Arginase I is next to the
liver in man also expressed by mature fetal and adult red blood cells and activated monocytic cells.
During inflammation induction of Arginase I by inflammatory cytokines in monocytic cells is considered
to lead to a local depletion of arginine resulting in a microenvironment that prevents nitric oxide
production and arginine dependent T cell function. Arginase II is expressed by kidney, nucleated red
blood cells, brain, spinal cord, gastro-intestinal tract, mammary gland and prostate. Enhanced
circulating Arginase I levels have been reported after surgery, following haemorrhage and in asthmatic
patients. Measurement of circulating Arginase I has been used experimentally as rapid marker for liver

Flow cytometry, Immuno assays, Western blot

Application Notes
W: A reduced sample treatment and SDS-Page was used. The band size is 40 kDa IA: clone D1.2 can be used as a coat antibody in immune assay setting FC: 2 μg of antibody D1.2 stains intracellular Arginase 1. For intracellular staining 250,000 cells were permeabilized with buffer containing 0.1% Saponin. The HepG2 cells were fixed in 4% paraformaldehyde before staining.

For Western blotting, dilutions to be used depend on detection system applied. It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50.

Product type
Monoclonal antibodies
100 µg, 20 µg
0.2 ml (100 µg/ml) 0.2 µm filtered antibody solution in PBS, containing 0.1% bovine serum albumin and 0.02% sodium azide.
Peptide D14967-1-1t/m6
Mouse IgG1
Cross reactivity
Horse – Weak, Sheep – Yes
Storage and stability
Product should be stored at 4°C. Under recommended storage conditions, product is stable for at least one year. The exact expiry date is indicated on the label
For research use only. Not for use in or on humans or animals or for diagnostics. It is the responsibility of the user to comply with all local/state and federal rules in the use of this product. Hycult Biotech is not responsible for any patent infringements that might result from the use or derivation of this product
Autoimmunity, Tumor immunology

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