Molecular characterization of the herpes simplex virus 1 (HSV-1) homologues, UL25 to UL30, in duck enteritis virus (DEV)
文献类型: 外文期刊
第一作者: Liu, Shengwang
作者: Liu, Shengwang;Chen, Shuhong;Li, Huixin;Kong, Xiangang
作者机构:
关键词: duck enteritis virus (DEV);gene arrangement;UL25;UL26;UL26.5;UL27;UL28;UL29 and UL30 gene;molecular characteristics
期刊名称:GENE ( 影响因子:3.688; 五年影响因子:3.329 )
ISSN: 0378-1119
年卷期: 2007 年 401 卷 1-2 期
页码:
收录情况: SCI
摘要: A 16.6-kilo-base pair (kb) sequence was amplified from the duck enteritis virus (DEV) clone-03 strain genome using 'targeted gene walking polymerase chain reaction (PCR)'. Seven complete open reading frames (ORFs) were predicted, and designated herpes simplex virus 1 (HSV-1) homologues, unique long (UL) 25, UL26, UL26.5, UL27, UL28, UL29, and UL30. Sequence analysis revealed that the arrangement of seven genes in DEV clone-03 strain was collinear to that from HSV-1. In addition, mRNA transcription orientation was identical to the HSV-1 genes. While UL25, UL26, and UL26.5 shared the same poly A signal, the UL27 and UL28 genes overlapped by 211 bp nucleotides and shared the same 3' transcription terminus. UL26.5, an in-frame ORF of UL26, was co-terminal with UL26 at its 3'-end. We predicted that the gene arrangement in the unique long segment of the DEV clone-03 was identical to that in HSV-1, particularly in the region from UL25 to UL30 gene. Phylogenetic trees of the putative proteins encoded by these seven genes showed that UL27, UL28, and UL30 had a close evolutionary relationship with the Mardivirus. however, the other four proteins exhibited close relationships with the Simplexvirus or Varicellovirus, indicating that the DEV clone-03 should be placed into a single cluster within the subfamily Alphaherpesvirinae. (c) 2007 Elsevier B.V. All rights reserved.
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