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생화학분자생물학회 (Korean Society for Biochemistry and Molecular Biology)
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Cloning and Characterization of a Gene Encoding 22 kDa Functional Protein of Bacteriophage MB78

  • Gupta, Lalita (Molecular Biology Unit, Institute of Medical Sciences, Banaras Hindu University) ;
  • Chakravorty, Maharani (Molecular Biology Unit, Institute of Medical Sciences, Banaras Hindu University)
  • 발행 : 2005.03.31
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초록

Functional protein of MB78 bacteriophage having apparent molecular weight of 22 kDa is expressed from 1.7 kb HindIII G fragment. The nucleotide sequence of this fragment showed two open reading frames of 222 and 196 codons in tail-to-tail orientation separated by a 62-nucleotide intercistronic region. The ORF of 22 kDa protein is present in opposite orientation, i.e. in the complementary strand, preceded by a strong ribosomal binding site and a promoter sequence. Another ORF started from the beginning of the fragment whose promoter region and translational start site lies in the 0.45 kb HincII U fragment which is located next to the HindIII G fragment, that has the sequence for DNA bending. 3' end of the fragment has high sequence homology to the EaA and EaI proteins of bacteriophage P22, a close relative of MB78 phage.

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참고문헌

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