Genome The genome of a virus can be either DNA or rna DNA-double stranded (ds: linear or cIrcular Single stranded(ss): linear or circular RNA- SS: segmented or non-segmented ss:polarity +(sense) or polarity non-sense ds: linear (only reovirus family
Genome ◼ The genome of a virus can be either DNA or RNA ◼ DNA-double stranded (ds): linear or circular Single stranded (ss) : linear or circular ◼ RNA- ss:segmented or non-segmented ss:polarity+(sense) or polarity – (non-sense) ds: linear (only reovirus family)
DNA RNA double- SIngle double tranded stranded stranded single-stranded lin lin circular circular linear linear(circular)* ear ear sin sin mult sin sin mult sin multi le gle iple gle gle iple gle pl (+)sense(-)sense sin mult sin mult ge iple Iple
DNA RNA doublestranded singlestranded doublestranded single-stranded lin ear circular lin ear circular linear linear (circular)* sin gle sin gle mult iple sin gle sin gle mult iple sin gle multi ple (+)sense (-)sense sin gle mult iple sin gle mult iple
Virus genomic Nucleic acids RNA DNA as ss ds ss (circ) linear linear linear circular multiple single single multiple
Viral capsid The protein shell, or coat, that encloses the nucleic acid genome Functions, a, Protect the viral nucleic acid b Participate in the viral infection, c share the antigenicity
Viral Capsid ◼ The protein shell, or coat, that encloses the nucleic acid genome. ◼ Functions: a. Protect the viral nucleic acid. b. Participate in the viral infection. c. Share the antigenicity
Nucleocapsid a The core of a virus particle consisting of the genome plus a complex of proteins complex of proteins =Structural proteins +Non-Structural proteins(Enzymes &Nucleic acid binding proteins)
Nucleocapsid ◼ The core of a virus particle consisting of the genome plus a complex of proteins. ◼ complex of proteins = Structural proteins +Non- Structural proteins (Enzymes &Nucleic acid binding proteins)