RELM alpha Polyclonal Antibody, PeproTech®, Invitrogen™

Description

AA Sequence of recombinant protein: MDETIEIIVE NKVKELLANP ANYPSTVTKT LSCTSVKTMN RWASCPAGMT ATGCACGFAC GSWEIQSGDT CNCLCLLVDW TTARCCQLS. Preparation: Produced from sera of rabbits immunized with highly pure Recombinant Murine RELMalpha. Anti-Murine RELMalpha-specific antibody was purified by affinity chromatography employing an immobilized Murine RELMalpha matrix. Sandwich ELISA: To detect Murine RELMalpha by sandwich ELISA (using 100 μL/well antibody solution) a concentration of 0.5-2.0 μg/mL of this antibody is required. This antigen affinity purified antibody, in conjunction with PeproTech Biotinylated Anti-Murine RELMalpha (500-P214Bt) as a detection antibody, allows the detection of at least 0.2-0.4 ng/well of Recombinant Murine RELMalpha. Western Blot: To detect Murine RELMalpha by Western Blot analysis this antibody can be used at a concentration of 0.1-0.2 μg/mL. When used in conjunction with compatible secondary reagents, the detection limit for Recombinant Murine RELMalpha is 1.5-3.0 ng/lane, under either reducing or non-reducing conditions.

RELM alpha, also known as Resistin-like alpha or FIZZ1, is a small cytokine (88 aminoacids, MW 9.4 kDa) produced mostly by macrophages. Its highest constitutive expression has been observed in small peritoneal macrophages, alveolar macrophages and adipose tissue macrophages. It is strongly induced by IL-4 and IL-13. Together with Arginase 1 and Ym-1, RELM alpha is considered one of the hallmarks of the M2 polarization of mouse macrophages, however, macrophages polarized with IL-10 (M2c) express neither RELM alpha nor Arginase 1. Also, the expression patterns of RELM alpha and Arginase 1 in untreated tissue macrophages significantly differ. Elevated levels of RELM alpha may indicate parasitic infection. Humans do not have RELM alpha gene but human Resistin resembles mouse RELM alpha in respect to sequence, tissue distribution and function. Other members of RELM family in mouse: RELM beta, RELM gamma and Resistin display different tissue distribution and functional properties. RELM alpha plays an important role in parasite infection, mucosal inflammation and allergy.