Calgranulin-B ; Migration inhibitory factor-related protein 14 ; MRP-14 ; Myeloid-related protein 14 ; S100 calcium-binding protein A9 ; Mrp14
Categories
Elisa
Function
Calcium-binding protein. Has antimicrobial activity towards bacteria and fungi. Important for resistance to invasion by pathogenic bacteria. Up-regulates transcription of genes that are under the control of NF-kappa-B. Plays a role in the development of endotoxic shock in response to bacterial lipopolysaccharide (LPS). Promotes tubulin polymerization when unphosphorylated. Promotes phagocyte migration and infiltration of granulocytes at sites of wounding. Plays a role as pro-inflammatory mediator in acute and chronic inflammation and up-regulates the release of IL8 and cell-surface expression of ICAM1. Extracellular calprotectin binds to target cells and promotes apoptosis. Antimicrobial and proapoptotic activity is inhibited by zinc ions (By similarity). Stimulates proliferation of fibroblast cells as both a monomer and a homodimer. May act as a mitogen during chronic inflammation.
Specificity
Natural and recombinant Rat Protein S100-A9
Subcellular Location
Secreted Cytoplasm Cytoplasm cytoskeleton Cell membrane Peripheral membrane protein Associates with tubulin filaments in activated monocytes. Targeted to the cell surface upon calcium influx. Released from blood leukocytes upon exposure to CSF2/GM-CSF, bacterial lipopolysaccharide (LPS) and during inflammatory processes.
Homodimer. Heterotetramer with S100A8. Component of the heterotetrameric calprotectin complex containing two copies each of S100A8 and S100A9. Interacts with CEACAM3 and tubulin filaments in a calcium-dependent manner. Heterotetrameric calprotectin interacts with ANXA6 and associates with tubulin filaments in activated monocytes. May interact with components of the intermediate filaments in monocytes and epithelial cells. The homodimer interacts with AGER and with the heterodimeric complex formed by TLR4 and LY96 in the presence of calcium and/or zinc ions. The homodimer binds quinoline-3-carboxamides in the presence of calcium and/or zinc ions (By similarity). Monomer and/or homodimer; disulfide-linked.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s) Cited for: PROTEIN SEQUENCE OF 2-57; 62-65 AND 72-113;MASS SPECTROMETRY;ACETYLATION AT ALA-2;METHYLATION AT HIS-107
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s) Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 3-113;PROTEIN SEQUENCE OF 11-25; 38-67; 81-90 AND 94-112;FUNCTION;SUBUNIT;TISSUE SPECIFICITY