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Titolo:
Conversion in the requirement of coat protein in cell-to-cell movement mediated by the cucumber mosaic virus movement protein
Autore:
Nagano, H; Mise, K; Furusawa, I; Okuno, T;
Indirizzi:
Kyoto Univ, Grad Sch Agr, Plant Pathol Lab, Sakyo Ku, Kyoto 6068502, JapanKyoto Univ Kyoto Japan 6068502 athol Lab, Sakyo Ku, Kyoto 6068502, Japan
Titolo Testata:
JOURNAL OF VIROLOGY
fascicolo: 17, volume: 75, anno: 2001,
pagine: 8045 - 8053
SICI:
0022-538X(200109)75:17<8045:CITROC>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSGENIC PLANTS; TUBULAR STRUCTURES; TOBACCO PLANTS; CAPSID PROTEIN; VIRAL MOVEMENT; AMINO-ACIDS; 3A PROTEIN; IN-VIVO; GENE; RNA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: Okuno, T Kyoto Univ, Grad Sch Agr, Plant Pathol Lab, Sakyo Ku, Kitashirakawa Oiwakecho, Kyoto 6068502, Japan Kyoto Univ Kitashirakawa Oiwakecho Kyoto Japan 6068502 02, Japan
Citazione:
H. Nagano et al., "Conversion in the requirement of coat protein in cell-to-cell movement mediated by the cucumber mosaic virus movement protein", J VIROLOGY, 75(17), 2001, pp. 8045-8053

Abstract

Plant viruses have movement protein (MP) gene(s) essential for cell-to-cell movement in hosts. Cucumber mosaic virus (CMV) requires its own coat protein (CP) in addition to the MP for intercellular movement. Our present results using variants of both CMV and a chimeric Brome mosaic virus with the CMV MP gene revealed that CMV MP truncated in its C-terminal 33 amino acids has the ability to mediate viral movement independently of CP. Coexpressionof the intact and truncated CMV MPs extremely reduced movement of the chimeric viruses, suggesting that these heterogeneous CMV MPs function antagonistically. Sequential deletion analyses of the CMV MP revealed that the dispensability of CP occurred when the C-terminal deletion ranged between 31 and 36 amino acids and that shorter deletion impaired the ability of the MP to promote viral movement. This is the first report that a region of MP determines the requirement of CP in cell-to-cell movement of a plant virus.

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Documento generato il 02/04/20 alle ore 09:43:45