Genetic organization of the HindIII-I region of the single-nucleocapsid nucleopolyhedrovirus of Buzura suppressaria.
In order to investigate the genomic organization of the single-nucleocapsid nucleopolyhedrovirus (SNPV) of Buzura suppressaria (BusuNPV), the HindIII-I fragment located at map units (mu) 26.6-29.4 of the viral genome was sequenced. The fragment contained two partial and three complete open reading frames (ORFs) representing the 3' end of a polyhedron envelope protein gene (pep), a homologue of the AcMNPV ORF117, a conotoxin-like protein gene (ctl), an inhibitor of apoptosis gene (iap) and a superoxide dismutase gene (sod), respectively. These five genes were identified for the first time in a SNPV. Sequence analysis further revealed that these ORFs have the same conserved motifs and gene structure as those observed in their homologues from other baculoviruses. Between ctl and iap, an intergenic region of about 700 basepairs with structure similar to non-hr origins of DNA replication was observed. The genomic arrangement of the ORFs in the BusuNPV HindIII-I fragment is very different from the arrangement of their homologues in the genome of Autographa californica multiple nucleocapsid (M) NPV and other baculoviruses to date. Our data suggest that on the basis of gene arrangement, BusuNPV belongs to a distinct taxon within the Baculoviridae family, corroborating our previous conclusions derived from phylogeny analysis of several BusuNPV genes.
Department of Virology, Wageningen Agricultural University, The Netherlands.
Z H
ZH
Hu
B M
BM
Arif
J S
JS
Sun
X W
XW
Chen
D
D
Zuidema
R W
RW
Goldbach
J M
JM
Vlak
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D003545:Cysteine; D015247:Deoxyribonuclease HindIII; D051034:Inhibitor of Apoptosis Proteins; D008969:Molecular Sequence Data; D019251:Nucleocapsid / Q000235:genetics*; D017924:Nucleopolyhedroviruses / Q000235:genetics* / Q000302:isolation & purification; D000077183:Occlusion Body Matrix Proteins; D016366:Open Reading Frames / Q000235:genetics*; D010802:Phylogeny; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D013482:Superoxide Dismutase / Q000737:chemistry / Q000235:genetics; D014764:Viral Proteins / Q000737:chemistry / Q000235:genetics; D015678:Viral Structural Proteins; D016335:Zinc Fingers
D051034:Inhibitor of Apoptosis Proteins; D000077183:Occlusion Body Matrix Proteins; D014764:Viral Proteins; D015678:Viral Structural Proteins; C086430:inhibitor of apoptosis, Nucleopolyhedrovirus; C009829:polyhedrin protein, Nucleopolyhedrovirus; D013482:Superoxide Dismutase; D015247:Deoxyribonuclease HindIII; D003545:Cysteine