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Nucleotide sequence of the putative recognition site for coat protein in the RNAs of alfalfa mosaic virus and tobacco streak virus.

Abstract：

:The sequence of the 3'-terminal 180 and 140 nucleotides of RNAs 2 and 3, respectively, of tobacco streak virus (TSV) was deduced by reverse transcription in the presence of a specific primer and chain terminators. Homology between the two RNAs was found to be restricted to a 3-terminal region of about 45 nucleotides. The data were compared with the sequence of the homologous region of 145 nucleotides occurring at the 3'-termini of the alfalfa mosaic virus (A1MV) RNAs, which contains the specific binding site for coat protein (Koper-Zwarthoff et al., Nucleic Acids Res. 7, 1887-1900 (1979); Houwing and Jaspars, Biochemistry 17, 2927-2933 (1978)). This was done because of the evidence that the RNAs of A1MV and TSV contain specific binding sites for their own as well as each others coat protein, and that binding of coat protein to these sites is required to initiate infection (Van Vloten-Doting, Virology 65, 215-225 (1975)). The 3'-terminal homologous regions of A1MV and TSV have two features in common: the presence of several stable hairpins and the multiple occurrence of the tetranucleotide sequence AUGC. The hairpins cause the linear array of tandemly repeated AUGC-boxes. It is postulated that the primary interaction of coat protein molecules with the RNAs of AlMV and TSV is a cooperative process involving several binding sites each being composed of a hairpin flanked at its 3'-side by an AUGC-sequence.

journal_name

Nucleic Acids Res

journal_title

Nucleic acids research

authors

Koper-Zwarthoff EC,Bol JF

doi

10.1093/nar/8.15.3307

subject

Has Abstract

pub_date

1980-08-11 00:00:00

pages

3307-18

issue

15

eissn

0305-1048

issn

1362-4962

journal_volume

8

pub_type

杂志文章

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