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For Research Use Only. Not For Clinical Use.
Cancer-related genes, Plasma proteins
Intracellular, Secreted (different isoforms)
Cell type enhanced (monocytes, Kupffer cells, Basal respiratory cells, Macrophages, Squamous epithelial cells)
Group enriched (neutrophil, classical monocyte)
Cell line enriched (SK-BR-3)
Homodimer (PubMed:11851337, PubMed:16258195). Preferentially exists as a heterodimer or heterotetramer with S100A8 known as calprotectin (S100A8/A9) (PubMed:16258195, PubMed:17553524, PubMed:19087201, PubMed:19122197, PubMed:8423249, PubMed:9083090, PubMed:25417112). S100A9 interacts with ATP2A2 (By similarity). S100A9 interacts with AGER, and with the heterodimeric complex formed by TLR4 and LY96 in the presence of calcium and/or zinc ions (PubMed:19402754). S100A9 binds quinoline-3-carboxamides in the presence of calcium and/or zinc ions (PubMed:19402754). S100A9 interacts with amyloid-beta protein 40 (PubMed:22457725). Calprotectin (S100A8/9) interacts with CEACAM3 and tubulin filaments in a calcium-dependent manner (PubMed:11708798). Heterotetrameric calprotectin (S100A8/A9) interacts with ANXA6 and associates with tubulin filaments in activated monocytes (PubMed:18786929). Calprotectin (S100A8/9) interacts with NCF2/P67PHOX, RAC1, RAC2, CYBA and CYBB (PubMed:15642721, PubMed:22808130). Calprotectin (S100A8/9) interacts with NOS2 to form the iNOS-S100A8/A9 transnitrosylase complex; induced by LDL(ox) (PubMed:25417112).
Antimicrobial, Antioxidant