Mm. Willcocks et al., PREVALENCE OF HUMAN ASTROVIRUS SEROTYPE-4 - CAPSID PROTEIN-SEQUENCE AND COMPARISON WITH OTHER STRAINS, Epidemiology and infection, 114(2), 1995, pp. 385-391
Astrovirus serotype 4 has increased in relative prevalence in the Oxfo
rd, UK area in 1993. The structural gene of human astrovirus serotype
4 has been sequenced and the results indicate that this protein differ
s substantially from serotypes 1 and 2. In particular, conservation at
the C terminus is greatly reduced. However, amino acid substitutions
in this region show a strong conservation in character suggesting that
structural or functional constraints operate in this region.