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  • Title: Molecular cloning and characterization of a novel human CC chemokine, SCYA26.
    Author: Guo RF, Ward PA, Hu SM, McDuffie JE, Huber-Lang M, Shi MM.
    Journal: Genomics; 1999 Jun 15; 58(3):313-7. PubMed ID: 10373330.
    Abstract:
    By searching the Expressed Sequence Tag database, a full-length cDNA for a novel human CC chemokine was cloned. This cDNA encoded a 94-amino-acid protein with a putative signal peptide of 26 amino acids. The deduced mature protein had the four conserved cysteine residues characteristic of CC chemokines and showed 44% identity with MIP-1beta and 40% identity with MIP-1alpha, RANTES, and MCP-4. mRNA for this chemokine was expressed constitutively in human heart and liver and with lesser but detectable levels in skeletal muscle, kidney, and small intestine. To investigate its biological activity, the protein was expressed in mammalian cells and purified by affinity chromatography. The recombinant protein demonstrated chemotactic activity in vitro for T cells and monocytes but not for neutrophils. The gene was mapped to chromosome 7q11.2 by fluorescence in situ hybridization. Based on its structural identity with other CC chemokines and the chemotactic activity and chromosomal location of this chemokine, we designate this chemokine small inducible cytokine subfamily A, member 26 (SCYA26). This gene symbol has been approved by the HUGO Gene Nomenclature Committee.
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