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The new plant virus family Flexiviridae is described. The family is named because its members have flexuous virions and it includes the existing genera Allexivirus, Capillovirus, Carlavirus, Foveavirus, Potexvirus, Trichovirus and Vitivirus, plus the new genus Mandarivirus together with some related viruses not assigned to any genus. The family is justified(More)
The 8534 nucleotide sequence of the genome of the carlavirus, potato virus M (PVM), has been determined. The sequence contains six large open reading frames (ORFs) and non-coding regions consisting of 75 nucleotides at the 5' end, 70 nucleotides followed by a poly(A) tail at the 3' end and 38 and 21 nucleotides between three large blocks of coding(More)
The 8890 nucleotide RNA sequence of shallot virus X (ShVX), a new virus isolated from shallot, has been determined. The sequence contains six open reading frames (ORFs) which encode putative proteins (in the 5' to 3' direction) of M(r) 194528 (ORF1), 26333 (ORF2), 11245 (ORF3), 42209 (ORF4), 28486 (ORF5) and 14741 (ORF6). The ORF1 protein was found to be(More)
The nucleotide sequence of carnation ringspot virus (CRSV) RNA-1, the type member of the dianthovirus genus, has been determined. The 3756 nucleotide genomic RNA-1 contains three large open reading frames (ORFs), capable of encoding 27K, 54K and 38K polypeptides. In addition, a small ORF encoding a 10K polypeptide at the 3' terminus of the RNA has been(More)
The nucleotide sequence of the 3'-proximal 2630 nucleotides of potato virus M (PVM) genomic RNA was determined. The sequenced region contained five long open reading frames (ORFs). The ORF nearest to the 3'-terminal pol(A) tail corresponds to a polypeptide of Mr 10,848. This ORF is preceded by one which encodes a protein of Mr 33,906 (34K) which has an(More)
Two highly degenerate primers for sequence-specific amplification and cloning of a 510-nucleotide-long segment of RNA-dependent RNA-polymerase (RdRp) genes were selected and synthesized on the basis of available plant carmovirus-like viral RdRp sequences. These primers were shown to be efficient in PCR screening of different RdRp genes including those of(More)
A highly sensitive test system, based on the immuno-PCR method, was developed for the detection of two staphylococcal toxins: enterotoxin A (SEA) and toxic shock syndrome toxin (TSST). A key element of the developed systems was to obtain supramolecular complexes of bisbiotinylated oligodeoxynucleotides and streptavidin, which were to be used as DNA-tags.(More)
DNA clones complementary to the 3'-terminal 3426 nucleotides of the genomic RNA of the carlavirus chrysanthemum virus B (CVB) have been sequenced. The sequence contains six open reading frames (ORFs) which encode putative proteins (in the 5'----3' direction) of Mr 25,749 (ORF2), Mr 11,435 (ORF3), Mr 6984 (ORF4), the triple gene block proteins, a protein Mr(More)
The polyprotein of Cocksfoot mottle virus (CfMV; genus SOBEMOVIRUS:) is translated from two overlapping open reading frames (ORFs) 2a and 2b by a -1 ribosomal frameshifting mechanism. In this study, a 12 kDa protein was purified from viral RNA-derived samples that appears to correspond to the CfMV genome-linked protein (VPg). According to the determined(More)