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4/2012
vol. 93
abstract:
REVIEW PAPER
Molecular mechanisms of genome expression
of coxsackievirus B3 that belongs to enteroviruses
BioTechnologia vol. 93(4) C pp. 414-423 C 2012
Online publish date: 2014/10/28
PlumX metrics:
Coxsackievirus B3 (CVB-3) belongs to the Picornaviridae family of enterovirus genus of pathogens that cause
a great number of human diseases. A viral infection is associated with many pathological states such as: myocarditis,
dilated cardiomyopathy, pericarditis, pleurodynia, systemic infection in infants, aseptic meningitis, and pancreatitis.
Since viral diseases, especially in their chronic state, are difficult to treat, there has not been as yet, any
specific therapeutic developed against coxsackievirus till date. CVB-3 is a single stranded, positive-sense RNA
virus that encodes one large open reading frame flanked by two untranslated regions (UTR). The 5NUTR contains
an IRES element that directs the translation process and a cloverleaf structure that regulate viral replication. The
complementary, 3N terminal region of the replicative strand is also believed to be crucial for the replication of
events. The secondary structure RNA elements regulate the most important processes in the viral propagation
cycle. The mechanisms that rule the CBV-3 gene expression, its genome structure and the key steps of its viral
life cycle are being reviewed in the hope that better knowledge of these processes will lead to better understanding
of the molecular biology of CVB-3 and to the design of an effective therapy against this enterovirus.
keywords:
enterovirus, coxsackievirus B3, untranslated region, IRES-dependent translation, cloverleaf structure,
viral replication
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