The coat protein gene of grapevine leafroll associated closterovirus-3: cloning, nucleotide sequencing and expression in transgenic plants

The coat protein gene of grapevine leafroll associated closterovirus-3: cloning, nucleotide... A lambda ZAP II cDNA library was constructed by cloning cDNA prepared from a high molecular weight double-stranded RNA (dsRNA, ca. 18 kb) isolated from grapevine leafroll associated closterovirus-3 (GLRaV-3) infected tissues. This cDNA library was immuno-screened with GLRaV-3 coat protein specific polyclonal and monoclonal antibodies and three immuno-positive clones were identified. Analysis of nucleotide sequences from these clones revealed an open reading frame (ORF) which was truncated at the end; the remainder of this ORF was obtained by sequencing a fourth clone that overlapped with one of the immunopositive clones. A total of 2028 bp was sequenced. The putative GLRaV-3 coat protein ORF, 939 bp, encodes a protein (referred to as p35) with a calculated of 34 866. Multiple alignment of the p35 amino acid sequence with coat protein sequences from other clostero-viruses revealed that the consensus amino acid residues (R and D) of filamentous plant viruses are preserved in the expected locations. The GLRaV-3 coat protein gene was then engineered for sense and antisense expression in transgenic plants. Transgenic Nicotiana benthamiana plants that contain the sense GLRaV-3 coat protein gene produced a 35 kDa protein that reacted with GLRaV-3 antibody in Western blot. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

The coat protein gene of grapevine leafroll associated closterovirus-3: cloning, nucleotide sequencing and expression in transgenic plants

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Publisher
Springer-Verlag
Copyright
Copyright © Wien by 1997 Springer-Verlag/
Subject
Legacy
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s007050050145
Publisher site
See Article on Publisher Site

Abstract

A lambda ZAP II cDNA library was constructed by cloning cDNA prepared from a high molecular weight double-stranded RNA (dsRNA, ca. 18 kb) isolated from grapevine leafroll associated closterovirus-3 (GLRaV-3) infected tissues. This cDNA library was immuno-screened with GLRaV-3 coat protein specific polyclonal and monoclonal antibodies and three immuno-positive clones were identified. Analysis of nucleotide sequences from these clones revealed an open reading frame (ORF) which was truncated at the end; the remainder of this ORF was obtained by sequencing a fourth clone that overlapped with one of the immunopositive clones. A total of 2028 bp was sequenced. The putative GLRaV-3 coat protein ORF, 939 bp, encodes a protein (referred to as p35) with a calculated of 34 866. Multiple alignment of the p35 amino acid sequence with coat protein sequences from other clostero-viruses revealed that the consensus amino acid residues (R and D) of filamentous plant viruses are preserved in the expected locations. The GLRaV-3 coat protein gene was then engineered for sense and antisense expression in transgenic plants. Transgenic Nicotiana benthamiana plants that contain the sense GLRaV-3 coat protein gene produced a 35 kDa protein that reacted with GLRaV-3 antibody in Western blot.

Journal

Archives of VirologySpringer Journals

Published: Jun 1, 1997

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