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  • Title: Nucleotide sequence and characterization of the 39K gene region of Autographa californica nuclear polyhedrosis virus.
    Author: Guarino LA, Smith MW.
    Journal: Virology; 1990 Nov; 179(1):1-8. PubMed ID: 2219715.
    Abstract:
    The complete nucleotide sequence of the Pstl-K fragment of the Autographa californica nuclear polyhedrosis virus (AcMNPV) genome was determined. This region of the genome contains the delayed early 39K gene and V-ubi, a viral protein with homology to ubiquitine. In addition, Pstl-K potentially encodes five other proteins. Hybrid-select translation mapped nine viral-specific proteins to this fragment. Three proteins were observed with both early and late RNA; two of them comigrated with proteins directed by transcripts made from the 39K open reading frame (ORF). One protein which was only seen with hybrid-selected late RNA comigrated with ubiquitin. A correction of previously published sequence data indicates that there is an additional AUG codon upstream of the 39K ORF. This AUG codon is located 8 nucleotides downstream of the early transcription initiation site. The methionine codon is followed by codons for three amino acids and a termination codon. The 39K ORF is located 102 nucleotides downstream of the minicistron. In vitro transcription-translation experiments confirmed that the downstream AUG serves as the initiation codon for the 39K ORF. Radioimmunoprecipitation experiments indicated that the Pstl-K-encoded 39K protein reacted with antiserum raised against a previously described nuclear matrix-associated 39K protein.
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