Key result
Hepatitis A virus exhibits a highly biased codon usage (Nc value of ~38) compared to other picornaviruses, with rare codons strategically located to ensure proper folding of capsid proteins.
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May guide codon-optimized HAV vaccine design; leaves open effects on clinical virulence or transmission.
Sánchez et al. (2002) studied Hepatitis A Virus (n=33). Genome sequence analysis vs. Poliovirus and foot-and-mouth disease virus sequences was evaluated on Codon usage statistic (Nc) and mutation rates (Ks, Ka). Hepatitis A virus exhibits a highly biased codon usage (Nc value of ~38) compared to other picornaviruses, with rare codons strategically located to ensure proper folding of capsid proteins.
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