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Virology. 1985 Mar;141(2):328-32.

Cloning and sequencing of the granulin gene from the Trichoplusia ni granulosis virus.


A restriction fragment containing the granulin gene from the Trichoplusia ni granulosis virus was located in a blot of viral genomic DNA using a cloned polyhedrin gene as a probe. This fragment was cloned, mapped, subcloned, and the sequence of the coding region and 5' and 3' flanking regions was determined. Although granulin is very similar in size to nuclear polyhedrosis virus polyhedrins, the N-terminal region of granulin demonstrated a high degree of variability with the first 60 amino acids only 28% homologous to the Autographa californica nuclear polyhedrosis virus (AcMNPV) polyhedrin sequence. Between amino acid 60 and the carboxyterminus at amino acid 248, the sequence was very similar (64%) to polyhedrin sequences. Overall the nucleotide and amino acid sequences were 58 and 53%, respectively, related to those of AcMNPV. No introns were evident in the gene.

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