Article
Development of a rapid and sensitive latex agglutination-based method for detection of group A rotavirus
Registro en:
GÓES, Ana Carolina Magalhães Andrade de; et al. Development of a rapid and sensitive latex agglutination-based method for detection of group A rotavirus. Journal of Virological Methods, v.148, n.2, p.211-217, 2008.
0166-0934
10.1016/j.jviromet.2007.11.013
1879-0984
Autor
Góes, Ana Carolina Magalhães Andrade de
Moraes, Marcia Terezinha Baroni de
Silveira, Waldemir de Castro
Araújo, Irene Trigueiros
H'alluin, Jean-Claude de
Souza, Waldemar da Silva
Silva Junior, José Godinho da
Leite, José Paulo Gagliardi
Resumen
Considering the background of morbidity and mortality caused by human rotavirus, detection methods that use rotavirus group antigen (VP6) in either enzyme immunoassay (EIA) or latex agglutination test (LAT) has been employed routinely in clinical diagnostic and epidemiological studies. In order to develop a rapid and sensitive rotavirus group A LAT, part of segment 6 corresponding to conserved N-terminal portion of the VP6 (1-245 aa) was cloned in Escherichia coli expression pGEX vector (glutathione S-transferase-GST gene fusion system) that has been modified previously containing a histidine tail at C-terminus. The immunological propriety of the recombinant VP6 having a total molecular weight of 52 kDa was evaluated by Western blot and by the ability of inducing anti-recombinant VP6 polyclonal antibodies in rabbit. The polyclonal serum produced was conjugated to a latex support to detect rotavirus in stool specimens. The percentage values for sensitivity and specificity of the rotavirus group A LAT were 98.5% and 100%, respectively. 2030-01-01