The UL2 Open Reading Frame of Bovine Herpesvirus 1 Encodes a Uracil-DNA Glycosylase

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Sequence analysis within the unique long segment of the bovine herpesvirus 1 (BHV-1) genome previously identified an open reading frame (ORF), designated UL2, whose deduced polypeptide of 204 amino acids contained a consensus uracil-DNA glycosylase (UDGase) signature sequence. To determine whether the BHV-1 UL2 ORF product has UDGase activity, we positioned the UL2 sequence downstream of the T7 promoter on the vector pET 28b(+) and expressed it in <i>Escherichia coli</i>. Upon induction with isopropyl β-D-thiogalactopyranoside these cells produced a 23-kDa protein, the molecular mass of which was in accordance with the prediction from the nucleotide sequence. A one-step purification procedure using nickel-chelating affinity chromatography resulted in a homogeneous preparation of this protein, which displayed specific UDGase activity in an <i>in vitro</i> enzyme assay. These results provide evidence that the BHV-1 UL2 gene does encode a UDGase.

収録刊行物

  • Microbiology and immunology  

    Microbiology and immunology 40(12), 949-953, 1996-12-20 

    Center For Academic Publications Japan

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各種コード

  • NII論文ID(NAID)
    10004895216
  • NII書誌ID(NCID)
    AA00738350
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    03855600
  • NDL 記事登録ID
    4098994
  • NDL 雑誌分類
    ZS9(科学技術--医学--病理学・微生物学・寄生虫学・感染・免疫学・血清学・アレルギー)
  • NDL 請求記号
    Z53-M387
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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