Bioinformatics Advance Access originally published online on January 10, 2008
Bioinformatics 2008 24(4):505-512; doi:10.1093/bioinformatics/btm638
Bioinformatics models for predicting antigenic variants of influenza A/H3N2 virus


1Division of Biostatistics and Bioinformatics and 2Vaccine R&D Center, National Health Research Institutes, Zhunan 350, Taiwan
*To whom correspondence should be addressed.
| Abstract |
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Motivation: Continual and accumulated mutations in hemagglutinin (HA) protein of influenza A virus generate novel antigenic strains that cause annual epidemics.
Results: We propose a model by incorporating scoring and regression methods to predict antigenic variants. Based on collected sequences of influenza A/H3N2 viruses isolated between 1971 and 2002, our model can be used to accurately predict the antigenic variants in 1999–2004 (agreement rate = 91.67%). Twenty amino acid positions identified in our model contribute significantly to antigenic difference and are potential immunodominant positions.
Contact: hsiung{at}nhri.org.tw
Supplementary information: The supplementary information includes 62 amino acid sequences of H3N2 viruses and 277 pair-wise antigenic distances.
Associate Editor: Limsoon Wong
The authors wish it to be known that, in their opinion, the first two authors should be regarded as joint First Authors.
Received on July 30, 2007; revised on November 15, 2007; accepted on December 17, 2007
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