Physicochemical
RNA, Double Strand
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10(31)
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(S)
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7 (14)
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The core has 2 major and 3 minor pooypeptides and is
surrounded by outer capsid layer with 2 major polypeptides, No. 2
and 5; No. 2 appears to be main determinate of serotype
specificity. (14).
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2(12);3(25)
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Polypeptide 5A associated with a tubular-like
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1.36 gm/cm3 (20) 1.38gm/cm3 in cesium chloride
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550 (20)(S)
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1.38 (20) 1.42(32) in cesium chloride
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470 (20)(S)
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| Stability of Infectivity (effects) |
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Resis. to ether, chloroform, deoxycholate; resis. depends on purification (3,10,31)
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| Virion Morphology |
Icosahedral, orbivirus (2)
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50-70 nm
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nm
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nm
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Electron microscopy
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No envelope present (2); occ. pseudoenvelopes (3)
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Capsid diam.: D= 3 nm; L=69 nm (20); 32 capsomeres
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| Morphogenesis |
Cytoplasm
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Cytoplasm
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Cytoplasm
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Cytoplasmic (4)
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| Hemagglutination |
Yes
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BHK-21 cell culture; fluoro-carbon ext. + cent. thru sucrose
gradients (11,30)
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Several (a)
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6.0-9.0
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6.0-9.0
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4dC, 22dC, 37dC
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4dC, 22dC, 37dC
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(a) Sheep, chicken, goose, guinea pig, mouse erythrocytes
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CF, modified direct CF, agar gel precipitin, NT
C
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(a) Sheep, chicken, goose, guinea pig, mouse erythrocytes
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