The complete nucleotide sequence of the genome of clone 6 of the bacul
ovirus Autographa californica nuclear polyhedrosis virus (AcNPV) has b
een determined. The molecule comprises 133,894 base pairs and has an o
verall A + T content of 59%. Our analysis suggests that the virus enco
des some 154 methionine-initiated, and potentially expressed, open rea
ding frames (ORFs) of 150 nucleotides or greater. These ORFs are distr
ibuted evenly throughout the virus genome on either strand. The ORfs a
re arranged as adjacent, nonoverlapping reading frames separated by sh
ort intergenic regions. Based on the primary nucleotide sequence, pred
ictions have been made concerning the functions of certain genes, the
sites for initiation of viral DNA replication, the regulation of early
and late gene transcription, and factors that may affect the AcNPV ge
ne translational efficiency. The genome sequence data confirm, with mi
nor differences, the information obtained for other AcNPV clones. It i
s proposed that clone os is considered the archetype AcNPV for compari
son purposes. (C) 1994 Academic Press, inc.