Abstract:
:The gene encoding protein p10, a structural protein of African swine fever (ASF) virus, has been mapped, sequenced and expressed in E. coli. Protein p10 was purified from dissociated virus by reverse-phase HPLC, and its NH2-terminal end identified by automated Edman degradation. To map the gene encoding protein p10, a mixture of 20-mer oligonucleotides based upon a part of the amino acid sequence was hybridized to cloned ASF virus restriction fragments. This allowed the localization of the gene in fragment Eco RI K of the ASF virus genome. The nucleotide sequence obtained from this region revealed an open reading frame encoding 78 amino acids, with a high content of Ser and Lys residues. Several of the Ser residues are found in Ser-rich regions, which are also found in some nucleic acid-binding proteins. The gene coding for protein p10 has been inserted in an expression vector which contains the promoter for T7 RNA polymerase. The recombinant plasmid was used to produce the ASF virus protein in E. coli. The bacterially produced p10 protein shows a strong DNA binding activity with similar affinity for both double-stranded and single-stranded DNA.
journal_name
Arch Viroljournal_title
Archives of virologyauthors
Muñoz M,Freije JM,Salas ML,Viñuela E,López-Otín Cdoi
10.1007/BF01318999subject
Has Abstractpub_date
1993-01-01 00:00:00pages
93-107issue
1-2eissn
0304-8608issn
1432-8798journal_volume
130pub_type
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