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Three ATP-binding cassette transporter genes, Abca14, Abca15, and Abca16, form a cluster on mouse Chromosome 7F3

  1. Author:
    Chen, Z. Q.
    Annilo, T.
    Shulenin, S.
    Dean, M.

  2. Author Address

    Dean, M, NCI, Lab Genom Divers, Human Genet Sect, Frederick, MD 21702 USA NCI, Lab Genom Divers, Human Genet Sect, Frederick, MD 21702 USA. NCI, SAIC Frederick, Basic Res Program, Frederick, MD 21702 USA.
    1. Year: 2004
  2. Journal: Mammalian Genome
    1. 15
    2. 5
    3. Pages: 335-343
  4. Type of Article: Article
  1. Abstract:

    We have identified and cloned three mouse genes that belong to the ABCA subfamily of ATP-binding cassette (ABC) transporters. These three genes are arranged in a tandem head-to-tail cluster spanning about 300 kb on mouse Chromosome (Chr) 7F3. Phylogenetic analysis indicates that although the three genes are related to human and mouse ABCA3, they are not orthologs of any of the current list of 48 human ABC genes and were, therefore, named Abca14, Abca15, and Abca16. The coding region of each gene is split into 31 exons, has an open reading frame of more than 1600 amino acids, and encodes a full transporter molecule with two nucleotide-binding folds (NBF) and two transmembrane domains (TMD). All three genes are predominantly expressed in testis, which suggests that they may perform special functions in testicular development or spermatogenesis. Interestingly, the human genome contains only fragments (less than ten exons) of at least two different ABC genes in the syntenic region on Chromosome 16p12 that are scattered among other, unrelated genes and are not capable of coding functional ABC transporters

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