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 dwarf virus (RDV), Akita isolate 

 

(genus Phytoreovirus: family Reoviridae

 

(available as a Word file)    (updated August 2003)

 

Genome Segment

(Size bp)*

ORFs

bp

 

(inclusive)

Proteins

 

(': Function)

Protein Size

aa

 

(Da)

Copy Number/

Particle

Location

Accession numbers

Functions and Properties

[cognate proteins]

1

(4423)

36-4367

P1 (Pol)

1444

(164,142)

minor structural protein

core

D10222

RNA polymerase(Pol).

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

2

(3512)

15- 2362

P2

1116

(122,994)

 

outer capsid

U73202

essential for vector transmission

3

(3195)

39-3095

P3

1019

(114,298)

120

Major Core

D00607

Inner shell capsid protein

[Comparable the orbivirus VP3, the rotavirus inner capsid protein VP2, reovirus inner capsid protein lambda 1 and the cypovirus 'capsid shell' protein VP1]

4

(2468)

64-2244

Pns4

727

(79,836)

0

N / S

D00608

 

5

(2570)

27-2429

P5 (Cap)

801

(90,532)

 

Core

D90033

Guanylyltransferase (CaP)

6

(1699)

49- 1575

Pns6

509

(57,401)

 

N / S

M91653

 

7

(1696)

26-1543

P7

506

(55,287)

 

core

D10218

Nucleic acid binding protein

8

(1427)

24-1286

P8 (T13)

421

(46,483)

780

outer capsid

D13773

Major outer capsid proteins forms trimers,

Comparable to the orbivirus outer core protein VP7(T13) and rotavirus VP6(T13)

9

(1305)

25-1077

Pns9

351

(38,912)

0

N /S

D13404

 

10

(1321)

27-1085

Pns10

353

(39,196)

0

N /S

D10221

 

11

(1067)

30-572

Pns11a

181

(19,988)

0

N/S

D10249

Nucleic acid binding proteins

6-572

Pns11b

189

(20,759)

0

N/S

12

(1066)

42 - 977

Pns12

312

(33,916)

0

N /S

D11369

 

313-588

Pns12OPa

92

(10,551)

0

N / S

337-588

Pns12OPb

74

(9,597)

0

N / S

: protein structure/function: RNA polymerase = "(Pol)"; capping enzyme = "(Cap)": structural protein arranged with T= 13 icosahedral symmetry = "(T13)".

 

Other species within the genus may have proteins with significant differences in sizes.

 

† 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, using data provided by Toshihiro Omura

Available at: http://www.reoviridae.org/dsRNA_virus_proteins/Phytoreovirus.htm

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

 

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