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    J Immunol. 1995 Jul 1;155(1):203-9.

    Molecular cloning and functional characterization of human lymphotactin.

    Source

    Department of Immunology, DNAX Research Institute of Molecular and Cellular Biology, Palo Alto, CA 94304, USA.

    Abstract

    We describe the isolation of a cDNA that encodes human lymphotactin (Ltn), a new class of lymphocyte-specific chemokine. Human Ltn shows similarity to some members of the C-C chemokine family but has lost the first and third cysteine residues that are characteristic of the C-C and C-X-C chemokines. Ltn is chemotactic for lymphocytes but not for monocytes, a characteristic that makes it unique among chemokines. In addition, calcium flux desensitization studies indicate that Ltn uses a unique receptor. The human Ltn gene maps to a different chromosome than do the C-C and C-X-C chemokine families. Taken together, these characteristics indicate that Ltn is the first example of a new class of human chemokines with preferential effects on lymphocytes.

    PMID:
    7602097
    [PubMed - indexed for MEDLINE]

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