Document Detail


Genome segment 6 of Antheraea mylitta cypovirus encodes a structural protein with ATPase activity.
MedLine Citation:
PMID:  18486179     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The genome segment 6 (S6) of the 11 double stranded RNA genomes from Antheraea mylitta cypovirus was converted into cDNA, cloned and sequenced. S6 consisted of 1944 nucleotides with an ORF of 607 amino acids and could encode a protein of 68 kDa, termed P68. Motif scan and molecular docking analysis of P68 showed the presence of two cystathionine beta synthase (CBS) domains and ATP binding sites. The ORF of AmCPV S6 was expressed in E. coli as His-tag fusion protein and polyclonal antibody was raised. Immunoblot analysis of virus infected gut cells and purified polyhedra using raised anti-p68 polyclonal antibody showed that S6 encodes a viral structural protein. Fluorescence and ATPase assay of soluble P68 produced in Sf-9 cells via baculovirus expression system showed its ability to bind and cleave ATP. These results suggest that P68 may bind viral RNA through CBS domains and help in replication and transcription through ATP binding and hydrolysis.
Authors:
Venkata R M Chavali; Chaithanya Madhurantakam; Suvankar Ghorai; Sobhan Roy; Amit K Das; Ananta K Ghosh
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-05-16
Journal Detail:
Title:  Virology     Volume:  377     ISSN:  0042-6822     ISO Abbreviation:  Virology     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-06-16     Completed Date:  2008-07-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0110674     Medline TA:  Virology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  7-18     Citation Subset:  IM    
Affiliation:
Department of Biotechnology, Indian Institute of Technology, Kharagpur, Kharagpur 721302, West Bengal, India.
Data Bank Information
Bank Name/Acc. No.:
GENBANK/EF062995
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MeSH Terms
Descriptor/Qualifier:
Adenosine Triphosphatases / chemistry,  genetics*,  metabolism
Amino Acid Sequence
Animals
Base Sequence
Catalytic Domain
Cloning, Molecular
DNA, Viral / genetics
Genome, Viral
Models, Molecular
Molecular Sequence Data
Moths / virology*
Phylogeny
Protein Conformation
Protein Structure, Secondary
Recombinant Fusion Proteins / chemistry,  genetics,  metabolism
Reoviridae / enzymology*,  genetics*
Sequence Homology, Amino Acid
Viral Structural Proteins / chemistry,  genetics*,  metabolism
Chemical
Reg. No./Substance:
0/DNA, Viral; 0/Recombinant Fusion Proteins; 0/Viral Structural Proteins; EC 3.6.1.-/Adenosine Triphosphatases

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