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  • Title: Organization of the human gene for nucleobindin (NUC) and its chromosomal assignment to 19q13.2-q13.4.
    Author: Miura K, Hirai M, Kanai Y, Kurosawa Y.
    Journal: Genomics; 1996 Jun 01; 34(2):181-6. PubMed ID: 8661046.
    Abstract:
    Nucleobindin (Nuc) was first identified as a secreted protein of 55 kDa that promotes production of DNA-specific antibodies in lupus-prone MRL/lpr mice. Analysis of cDNA that encoded Nuc revealed that the protein is composed of a signal peptide, a DNA-binding site, two calcium-binding motifs (EF-hand motifs), and a leucine zipper. In the present study, we analyzed the organization of the human gene for Nuc (NUC). It consists of 13 exons that are distributed in a region of 32 kb. The functional motifs listed above are encoded in corresponding exons. NUC was expressed in all organs examined. Comparison of nucleotide sequences in the promoter regions between human and mouse NUC genes revealed several conserved sequences. Among them, two Sp1-binding sites and a CCAAT box are of particular interest. The promoter is of the TATA-less type, and transcription starts at multiple sites in both the human and the mouse genes. These features suggest that NUC might normally play a role as a housekeeping gene. NUC was located at human chromosome 19q13.2-q13.4.
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