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Overview
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Reacts with human mucosal addressin cell adhesion molecules-1 (MAdCAM-1), a key playerin mediating the infiltration of leukocytes into chronically inflamed tissue. MAdCAM-1 is a cell-surface Igsuperfamily member composed of two extracellular Ig domains, followed by a mucin-like domain, atransmembrane domain and a short cytoplasmatic domain. It interacts via its N-terminal Ig domainwith the lymphocyte homing receptor alpha4 beta7, which plays a critical role in forming the gut-associated lymphoid system. MAdCAM-1 promotes the adhesion of T-and B cells, monocytes/macrophages, and potentially eosinophils, basophils, and differentiated mast cells to thevascular endothelium. Mucosal addressin cell adhesion molecule-1 RNA transcripts are predominantlyexpressed in the small intestine, mesenteric lymph nodes, colon and spleen; and are very weaklyexpresssed in human pancreas and brain. The monocolonal antibody 314G8 recognizes a site in theN-terminal Ig domain of MAdCAM-1. The monoclonal antibody 314G8 detects MAdCAM-1 on venulesin the spleen and small intestine.
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Overview