Structure and Function of the phnF Gene of Pseudomonas sp. Strain DJ77

Pseudomonas sp. Strain DJ77에서 phnF 유전자의 구조

  • Published : 1997.06.01

Abstract

The 6.8 kb Xhol fragment of chromosomal ONA of Pseudomonas sp. 0177 contains the phnDEFG genes involved in the degradation of polyaromatic hydrocarbons and chlorinated aromatics. Here, we report the nucleotide sequence of the ORF encoding a polypeptide consisted of 143 amino acids with a Mr of 13,859. The nucleotide sequence of the ORF is 99% and 68.6% identical to the downstream region of catE of Sphingomonas sp. strain HV3 and the ORF between xylE and xylG of Sphingomonas yanoikuyae Bl, respectively. The deduced amino acid sequence of the PhnF has 62.3% identity with the amino acid encoded hy orfY region of Citrobacter freundii DSM30040. We now confirm that the ORF is located between the catechol 2,3-dioxygenase (C230), phnE, and 2-hydroxymuconic semialdehyde dehydrogenase (2HMSO), phnG.

Pseudomonas sp. strain DJ77로부터 클로닝한 catechol 분해와 관련된 phnDEFG 유전자들이 존재하는 pHENX7에서 phnF 유전자의 염기서열을 밝혔다. Extradiol dioxygenase 유전자인 phnE와, 2-hydroxymuconic semialdehyde dehydrogenase를 생산하는 phnG 유전자 사이에 존재하는 유전자 phnF는 432 bps로 된 하나의 open reading frame(ORF)으로 존재하였고, 여기서 유추한 아미노산은 143개로 분자량 13,859 dalton의 polypeptide를 만들어 내고 있다. phnF 유전자는 Sphingomonas sp. strain HV3 catE 유전자 부위와 sphingomonas yanoikuyae B1의 xylE와 xylG 사이에 존재하는 ORF 부위의 염기서열과 각각 99%, 68.6%의 상동성을 가지고 있었다. 또한 PhnF 단백질의 아미노산서열은 citrobacter freundii DSM30040의 orfY 부위의 아미노산서열과 62.3%의 상동성이 있었다.

Keywords

References

  1. Mol. Gen. Genet. v.220 Location and gene organization of the dimethylphenol catabolic genes of Pseudomonas CF600 Bartilson, M.;I. Nordlund;V. Shingler
  2. J. Bacteriol. v.177 Biochemical and molecular characterization of the oxidative branch of glycerol utilization by Citrobacter freundii Daniel, R.;K. Stuertz;G. Gorrschalak
  3. Mol. Gen. Genet. v.210 Evolutionary relationships between catabolic pathways for aromatics: conservation of gene order and nucleotide sequence of catechol oxidation genes of pWW0 and NAH7 plasmids Harayama, S.;M. Rekik;A. Wasserfallen;A. Bairoch
  4. Kor. J. Microbiol. v.25 Isolation and characterization of bacteria degrading chlorinated aromatic hydrocabons Kim, J. W.;C. K. Kim;Y. C. Kim;J. H. Yeum;J. G. Lee
  5. Kor. J. Microbiol. v.30 Molecular cloning of a gene cluster for phenanthrene degradation from Pseudomonas sp. DJ77 and its expression in Esxherichia Kim, Y. C.;K. S. Youn;M. S. Shin,;H. S. Kim; M. S. Park;H. J. Park
  6. Kor. J. Microbiol. v.30 Nucleotide sequence of the phnE gene encoding extradiol dioxygenase from Pseudomonas sp. strain DJ77 Kim, Y. C.;M. S. Shin;K. S. Youn;Y. S. Park;U. H. Kim
  7. Molecular cloning: a laboratory manual. (2nd ed.) Sambrook, J.;E. F. Fritsch;T. Maniatis
  8. Proc. Nat. Acad. Sci. USA v.74 DNA sequencing with chain-terminating inhibitors Sanger, R.;S. Nicklen;A. R. Coulson
  9. Experiments with gene fusions Silhavy, T. J.;M. L. Berman;L. W. Enquist
  10. Gene. v.138 Cloning of cmpE, a plasmid borne catechol 2,3-dioxygenase encoding genge from the aromatic and chloroaromatic degrading Pseudomonas sp. HV3 Yarjala, K.;L. Paulin;S. Kilpi;M. Romantschuk
  11. Proc. Natl. Acad. Sci. v.79 Plasmid gene organization: naphthalene/salicylate oxidation Yen, K. M.;I. C. Gunsalus
  12. J. Bacteriol. v.177 Molecular and biochemical characterization of two meta-cleavage dioxygenases involed in biphenyl and m-xylene degradation by Beijerinckia sp. strain B1 Zylstra, J. G.;E. B. Kim