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AVANTI POLAR LIPIDS , CYGNUS , LARODAN , ADIPOGEN , MYBIOSOURCE , SERVA NORDMARK, BIOWORLD, EDGEBIO , PANREAC APPLICHEM
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Product description: Recombinant protein. Heligmosomoides polygyrus protein HpARI (aa 17-165) is fused at the C-terminus to a His-tag. Binds to human and mouse IL-33. Endotoxin: <0.01EU/µg purified protein (LAL test). Lyophilized. Contains PBS. HpARI is a protein secreted by the mouse parasite Heligmosomoides polygyrus. The mature protein HpARI, containing three predicted Complement Control Protein (CCP)-like modules (also known as Short Consensus Repeats (SCRs) or sushi-domains), suppresses type 2 (allergic) immune responses through interference in the interleukin-33 (IL-33) pathway. During cell damage, HpARI gains access to the nucleus of necrotic cells, where it binds directly to IL-33 and nuclear DNA, preventing secretion and binding of IL-33 to its receptor. A non-natural truncation consisting of the first 2 domains of HpARI (CCP1/2) retains IL-33 and DNA binding capacity. HpARI (CCP1/2) is able to stabilize IL-33, increasing its half-life and amplifying its effects. HpARI (CCP1/2) increases IL-33 activity by protecting it from oxidation and proteolytic degradation. HpARI (CCP1/2) (rec.) (His) is a new type of reagent to study IL-33-mediated pathology in vivo.
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