Identification and expression of a conserved ubiquitin gene homologue of Spodoptera litura nucleopolyhedrovirus (SpltNPV-I).

Autor: Monika Jain, Rakha Hari Das
Předmět:
Zdroj: Molecular Biology Reports; Dec2004, Vol. 31 Issue 4, p261-266, 6p
Abstrakt: Abstract An ORF having a potential to code for a polypeptide of 79 amino acids has been identified within 993 nt sequence of 2 kb Eco RI-W fragment of Spodoptera litura nucleopolyhedrovirus (SpltNPV-I). Nucleotide and deduced amino acid sequence analyses showed its identity with the ubiquitin homologue of eukaryotes (7980%), Melanoplus sanguinipes entomopoxvirus (76%) and other baculoviruses (7289%). The ORF is under baculovirus late promoter motif RTAAG but unlike other baculoviruses, three such motifs at -6, -10 and -27 position are present in SpltNPV. The ORF expresses as a 10 kDa protein in E. coli and the purified recombinant protein showed crossreactivity with the rabbit anti-ubiquitin antibodies. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index