Display Settings:

Format

Send to:

Choose Destination
    Proc Natl Acad Sci U S A. 1987 Sep;84(17):6249-53.

    Conserved major histocompatibility complex class II boxes--X and Y--are transcriptional control elements and specifically bind nuclear proteins.

    Abstract

    A conserved sequence motif exists at the 5' end of all major histocompatibility complex class II genes. This motif consists of the 14-base X and Y boxes separated by a short stretch of variable sequence. In this report, we provide evidence that the X and Y boxes play an important role in controlling transcription of the murine class II gene E kappa alpha. We have developed transgenic mouse lines that carry E alpha genes cleanly deleted for either the X or Y box and have compared the expression of these mutant transgenes with that of a nondeleted control. Both the X and Y segments appear critical for accurate and efficient transcription of E kappa alpha. The most drastic effect is seen with gamma-interferon-treated macrophages, where deletion of the Y box completely abrogates transcription initiated by the normal promoter. In addition, we identify proteins from nuclear extracts that bind specifically to the X or Y box.

    PMID:
    3114745
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC299048
    Free PMC Article

      Supplemental Content

      Icon for HighWire Press Icon for PubMed Central

      Save items

      loading

      Recent activity

      Your browsing activity is empty.

      Activity recording is turned off.

      Turn recording back on

      See more...
      Write to the Help Desk