The RNAs and Proteins of dsRNA Viruses

 

Edited by Peter. P. C. Mertens, Houssam Attoui and Dennis H. Bamford

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The dsRNA genome segments and proteins  of rice ragged stunt virus (RRSV) 

 

(genus Oryzavirus: family Reoviridae)

 

available as a Word File    updated August 2003

 

Genome Segment

(Size bp)

ORFs

bp

(inclusive)

Proteins

(': Protein Function)

Protein Size aa

 

(kDa)

Copy Number/

Particle

Location

Accession numbers

Functions and Properties

[cognate proteins]

1

(3849)

30-

3740

P1

1237

(137.7)

 

Core

AF020334

B Spike protein

2

(3808)

169-

3744

P2

1192

(133.1)

 

Inner core capsid

AF020335

Structural protein

3

(3699)

86-

3604

P3

1173

(130.8)

 

Core capsid

AF020336

Structural protein

4

(3823)

12-

3776

P4A (Pol)

1255

(141.4)

minor1 component

Core

U66714

RNA dependent RNA polymerase

[Comparable to Orthoreovirus lambda 3, Orbivirus VP1, Rotavirus VP1,  Cypovirus VP2]

491-

1468

P4B

327

(36.9)

 

 

Unknown

5

(2682)

52-

2475

P5 (Cap)

808

(91.4)

 

-

U33633

capping enzyme / guanyltransferase

6

(2157)

41-

1816

 

P6

592

(65.6)

 

-

AF020337

 

7

(1938)

20-

1843

 

NS7

608

(68)

 

Non-structural

U66713

 

8

(1814)

23-

1810

P8

596

(67.3)

 

Outer capsid

L46682

structural protein precursor

23-

694

P8A

224

(25.6 )

 

 

Self-cleaving Protease

695-

1810

P8B

558

(41.7)

 

 

 

9

(1132)

14-

1027

P9

338

(38.6)

 

Spike

L38899

Vector transmission, spike protein

10

(1162)

20-

55

?

12

 

Minicistron?

U66712

unknown

142-

1032

NS10

297

(32.3)

 

N / S

unknown

':Protein structure/function: RNA polymerase = (Pol); capping enzyme = (CaP); Inner virus structural protein with T = 13 symmetry = (T13); viral inclusion body or viroplasm matrix protein = (ViP). Other species within the genus may have proteins with significant differences in sizes.

  1. : The copy number of the polymerase is based on comparisons to other members of the family Reoviridae.

† Segments numbered based on migration of genome segments in SDS-PAGE gel. Migration order may differ among other members of the genus. Updated August 2003

Table created by Peter Mertens with data provided by Narayana Upadhyaya

Periodic updates available at www.reoviridae.org/dsRNA_virus_proteins/Oryzavirus.htm

Please make suggestions for changes or updates to this table by e-mail to Peter Mertens peter.mertens@bbsrc.ac.uk

 

References

 

1. Upadhyaya NM, Yang M, Kositratana W, Ghosh A and Waterhouse PM (1995). Molecular analysis of rice ragged stunt oryzavirus segment S9 and sequence conservation among isolates from Thailand and India. Archives of Virology 140:1945-1956.

2. Li Z, Upadhyaya NM, Kositratana W, Gibbs AJ and Waterhouse PM (1996) Genome segment 5 of rice ragged stunt virus encodes a virion protein. Journal of General Virology 77:3155-3160.

3. Upadhyaya NM, Zinkowsky E, Li Z, Kositratana W and Waterhouse PM (1996) The Mr 43K major capsid protein of rice ragged stunt oryzavirus is a post-translationally processed product of a Mr 67,348 polypeptide encoded by genome segment 8. Archives of Virology 141:1689-1701.

4. Upadhyaya NM, Ramm K,Gellatly JA, Li Z, Kositratana W and Waterhouse PM (1997) Rice ragged stunt oryzavirus genome segments S7 and S10 encode non-structural proteins of Mr 68,025 (Pns7) and Mr 32,364 (Pns10). Archives of Virology 142:1719-1726

5. Upadhyaya NM, Ramm K, Li Z, Kositratana M and Waterhouse PM (1997) Rice ragged stunt oryzavirus genome segment S4 could encode an RNA dependent RNA polymerase and a second protein of unknown function. Archives of Virology 143:1815-1822.

6. Waterhouse PM and Upadhyaya NM (1998) Genetic engineering of virus resistance In Molecular Biology of Rice, ed Shimamoto K, Springer-Verlag, Tokyo pp 257-281.

7. Upadhyaya NM, Li Z, Wang M-B, Chen S, Gong Z-X, Waterhouse PM (2001) Engineering for virus resistance in rice In: Khush GS, Brar DS, Hardy B (eds) Rice Genetics IV. Proceedings of the Fourth International Rice Genetics Symposium, 22-27 October 2000, Los Banos, Philippines. New Delhi (India): Science Publishers, Inc., and Los Banos (Philippines): International Crops Research Institute. P 405-421.

8. Upadhyaya NM, Zhou X-R, Zhu Q-H, Eamens A, Wang M-B, Waterhouse P, Dennis ES (2000) Transgenic rice. In Obrien L, Henry RT (eds) Transgenic cereals. American Association of Cereal Chemists St Paul, Minnesota, USA pp.28-87.

9. Upadhyaya NM, Waterhouse PM, Li Z, Ramm K, Gaudron J, Kositratana W, Gosh A, Gong Z-X, and Chen S (1999) Rice ragged stunt virus (RRSV) genome organization and RRSV derived synthetic resistance genes. In Proceedings of the International Conference on Integrated Plant Disease Management for Sustainable Agriculture. IARI, New Delhi (in Press).

10. Chaogang S, Juanhua W, Guoying Z, Gang S, Baozhen P, Juanli Lei, Dendi J, Shenxiang C, Upadhyaya NM, Waterhouse P, Zuxun Gong (2003) Ectopic expression of the spike protein of Rice Ragged Stunt Oryzavirus in transgenic rice plants inhibits transmission of the virus to insects. Molecular Breeding 11:295-301.

11. Chen, C.C., Chen, M.J., Chiu, R.J. and Hsu, H.T. (1989). Morphological comparisons of Echinochloa ragged stunt and rice ragged stunt viruses by electron microscopy. Phytopathology, 79, 235-241.

12. Chen, C.C., Chen, M.J., Chiu, R.J. and Hsu, H.T. (1997). Rice ragged stunt virus (Oryzavirus) possesses an outer shell and A-spikes. Plant Protection Bull., (Taichung) 39, 383-388.

13. Chen, C.C., Hsu, Y.H., Chen, M.J. and Chiu, R.J. (1989). Comparison of proteins and nucleic acids of Echinochloa ragged stunt and rice ragged stunt viruses. Intervirology, 30, 278-284.

14. Yan, J., Uyeda, I., Kimura, I., Shikata, E., Chen, C.C. and Chen, M.J. (1994). Echinochloa ragged stunt virus belongs to the same genus as rice ragged stunt virus. Ann. Phytyopath. Soc. Japan, 60, 613-616.

 

 

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(The RNAs and Proteins  of dsRNA Viruses:  Edited by Peter. P. C. Mertens, Houssam Attoui and Dennis H. Bamford)