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Searching for the role of protein phosphatases in eukaryotic microorganisms BJMBR
da-Silva,A.M.; Zapella,P.D.A.; Andrioli,L.P.M.; Campanhã,R.B.; Fiorini,L.C.; Etchebehere,L.C.; da-Costa-Maia,J.C.; Terenzi,H.F..
Preference for specific protein substrates together with differential sensitivity to activators and inhibitors has allowed classification of serine/threonine protein phosphatases (PPs) into four major types designated types 1, 2A, 2B and 2C (PP1, PP2A, PP2B and PP2C, respectively). Comparison of sequences within their catalytic domains has indicated that PP1, PP2A and PP2B are members of the same gene family named PPP. On the other hand, the type 2C enzyme does not share sequence homology with the PPP members and thus represents another gene family, known as PPM. In this report we briefly summarize some of our studies about the role of serine/threonine phosphatases in growth and differentiation of three different eukaryotic models: Blastocladiella...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Protein phosphatases; Blastocladiella emersonii; Neurospora crassa; Dictyostelium discoideum.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000700006
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Antigenic characterization of Brazilian bovine viral diarrhea virus isolates by monoclonal antibodies and cross-neutralization BJMBR
Botton,S.A.; da-Silva,A.M.; Brum,M.C.S.; Weiblen,R.; Flores,E.F..
Nineteen Brazilian isolates of bovine viral diarrhea virus (BVDV) were characterized antigenically with a panel of 19 monoclonal antibodies (mAbs) (Corapi WV, Donis RO and Dubovi EJ (1990) American Journal of Veterinary Research, 55: 1388-1394). Eight isolates were further characterized by cross-neutralization using sheep monospecific antisera. Analysis of mAb binding to viral antigens by indirect immunofluorescence revealed distinct patterns of reactivity among the native viruses. Local isolates differed from the prototype Singer strain in recognition by up to 14 mAbs. Only two mAbs - one to the non-structural protein NS23/p125 and another to the envelope glycoprotein E0/gp48 - recognized 100% of the isolates. No isolate was recognized by more than 14...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bovine viral diarrhea virus; BVDV; Monoclonal antibodies; Cross-neutralization; Antigenic diversity.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998001100011
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