Ultrastructure of human astrovirus serotype 2
نویسندگان
چکیده
منابع مشابه
Characterization of human serotype 1 astrovirus-neutralizing epitopes.
Astroviruses are important agents of pediatric gastroenteritis. To better understand astrovirus antigenic structure and the basis of protective immunity, monoclonal antibodies (MAbs) were produced against serotype 1 human astrovirus. Four MAbs were generated. One MAb (8G4) was nonneutralizing but reacted to all seven serotypes of astrovirus by enzyme-linked immunosorbentassay (ELISA) and immuno...
متن کاملProteolytic processing of a serotype 8 human astrovirus ORF2 polyprotein.
Astroviruses require the proteolytic cleavage of the capsid protein to infect the host cell. Here we describe the processing pathway of the primary translation product of the structural polyprotein (ORF2) encoded by a human astrovirus serotype 8 (strain Yuc8). The primary translation product of ORF2 is of approximately 90 kDa, which is subsequently cleaved to yield a 70-kDa protein (VP70) which...
متن کاملIdentification and sequence determination of the capsid protein gene of human astrovirus serotype 1.
We present the sequence of an open reading frame (ORF) at the 3' end of human astrovirus serotype 1. Primer extension experiments showed that the RNA expressing this gene is shorter than the complete ORF, and could form a protein of M(r) 85,540. The protein was expressed by recombinant baculovirus and was recognized by anti-virion serum, indicating a structural role. Sequence comparison indicat...
متن کاملProtein products of the open reading frames encoding nonstructural proteins of human astrovirus serotype 8.
Human astroviruses have a positive-strand RNA genome, which contains three open reading frames (ORF1a, ORF1b, and ORF2). The genomic RNA is translated into two nonstructural polyproteins, nsp1a and nsp1ab, that contain sequences derived from ORF1a and from both ORF1a and ORF1b, respectively. Proteins nsp1a and nsp1ab are thought to be proteolytically processed to yield the viral proteins implic...
متن کاملThe complete sequence of a human astrovirus.
We have determined the complete genomic sequence of human astrovirus serotype 1 isolated in Newcastle upon Tyne. The genome is 6813 nucleotides long and contains three sequential open reading frames (ORFs). The two closest to the 5' end are linked by a ribosomal frameshifting motif and contain sequence motifs indicative of non-structural virus proteins: serine protease and RNA-dependent RNA pol...
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ژورنال
عنوان ژورنال: Journal of General Virology
سال: 1995
ISSN: 0022-1317,1465-2099
DOI: 10.1099/0022-1317-76-8-2075