function:Chemotactic factor that attracts T-cells and monocytes , but not neutrophils , eosinophils , or B-cells. Acts mainly via CC chemokine receptor CCR1. Also binds to CCR3. CCL15 (22-92) , CCL15 (25-92) and CCL15 (29-92) are more potent chemoattractants than the small-inducible cytokine A15. ,function:Has weak activities on human monocytes and acts via receptors that also recognize MIP-1 alpha. It induced intracellular Ca (2+) changes and enzyme release , but no chemotaxis , at concentrations of 100-1 ,000 nM , and was inactive on T-lymphocytes , neutrophils , and eosinophil leukocytes. Enhances the proliferation of CD34 myeloid progenitor cells. The processed form HCC-1 (9-74) is a chemotactic factor that attracts monocytes eosinophils , and T-cells and is a ligand for CCR1 , CCR3 and CCR5. ,online information:CCL14 entry ,online information:CCL15 entry ,PTM:HCC-1 (1-74) , but not HCC-1 (3-74) and HCC-1 (4-74) , is partially O-glycosylated; the O-linked glycan consists of one Gal-GalNAc disaccharide , further modified by two N-acetylneuraminic acids. ,PTM:The N-terminal processed forms HCC-1 (3-74) , HCC-1 (4-74) and HCC-1 (9-74) are produced in small amounts by proteolytic cleavage after secretion in blood. ,similarity:Belongs to the intercrine beta (chemokine CC) family. ,subunit:Monomer. ,tissue specificity:Expressed constitutively in several normal tissues: spleen , liver , skeletal and heart muscle , gut , and bone marrow , present at high concentrations (1-80 nM) in plasma. ,tissue specificity:Most abundant in heart , skeletal muscle and adrenal gland. Lower levels in placenta , liver , pancreas and bone marrow. CCL15 (22-92) , CCL15 (25-92) and CCL15 (29-92) are found in high levels in synovial fluids from rheumatoid patients. ,
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