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Literature DB >> 6459062

Possible role of membrane proteins in mercury resistance of Enterobacter aerogenes.

Abstract

Mercury resistance shown by a strain of Enterobacter aerogenes was found to be determined by a plasmid. The resistance appeared to be not due to enzymatic volatilization of mercury, but due to the alteration in cellular permeability to mercury. Comparison of the outer membrane proteins was made between the resistant cells and the sensitive counterparts obtained by the treatment with mitomycin C, showing that two proteins with molecular weight of 46,000 and 44,000 had disappeared from the outer membrane along with the plasmid by the curing. These results suggest that the two membrane proteins mediating the cellular permeability to mercury compound may be responsible for the mercury resistance of the strain.

Entities: Chemical Species

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Year: 1981 PMID： 6459062 DOI： 10.1007/bf00411057

Source DB: PubMed Journal: Arch Microbiol ISSN： 0302-8933 Impact factor: 2.552

18 in total

Review 1. Microbial transformations of metals.

Authors: A O Summers; S Silver
Journal: Annu Rev Microbiol Date: 1978 Impact factor: 15.500

2. Cupric ion resistance as a new genetic marker of a temperature sensitive R plasmid, Rtsl in Escherichia coli.

Authors: M Ishihara; Y Kamio; Y Terawaki
Journal: Biochem Biophys Res Commun Date: 1978-05-15 Impact factor: 3.575

3. Volatilisation of mercury and organomercurials determined by inducible R-factor systems in enteric bacteria.

Authors: J Schottel; A Mandal; D Clark; S Silver; R W Hedges
Journal: Nature Date: 1974-09-27 Impact factor: 49.962

4. Cleavage of structural proteins during the assembly of the head of bacteriophage T4.

Authors: U K Laemmli
Journal: Nature Date: 1970-08-15 Impact factor: 49.962

5. Decreased uptake of cadmium by a resistant strain of Staphylococcus aureus.

Authors: I Chopra
Journal: J Gen Microbiol Date: 1970-10

6. Mercury and cadmium resistances mediated by the penicillinase plasmid in Staphylococcus aureus.

Authors: I Kondo; T Ishikawa; H Nakahara
Journal: J Bacteriol Date: 1974-01 Impact factor: 3.490

7. Plasmid conferring increased sensitivity to mercuric chloride and cobalt chloride found in some laboratory strains of Escherichia coli K-12.

Authors: P Y Wang; J Relf; S Palchaudhuri; V N Iyer
Journal: J Bacteriol Date: 1978-02 Impact factor: 3.490

8. Outer membrane of Escherichia coli: properties of the F sex factor traT protein which is involved in surface exclusion.

Authors: P A Manning; L Beutin; M Achtman
Journal: J Bacteriol Date: 1980-04 Impact factor: 3.490

9. Mercury and organomercurial resistances determined by plasmids in Pseudomonas.

Authors: D L Clark; A A Weiss; S Silver
Journal: J Bacteriol Date: 1977-10 Impact factor: 3.490

10. Mercury resistance in a plasmid-bearing strain of Escherichia coli.

Authors: A O Summers; S Silver
Journal: J Bacteriol Date: 1972-12 Impact factor: 3.490

11 in total

1. Adaptation of aquatic microbial communities to hg stress.

Authors: T Barkay
Journal: Appl Environ Microbiol Date: 1987-12 Impact factor: 4.792

2. Genes encoding mercuric reductases from selected gram-negative aquatic bacteria have a low degree of homology with merA of transposon Tn501.

Authors: T Barkay; M Gillman; C Liebert
Journal: Appl Environ Microbiol Date: 1990-06 Impact factor: 4.792

Possible role of membrane proteins in mercury resistance of Enterobacter aerogenes.

Review 1. Microbial transformations of metals.

2. Cupric ion resistance as a new genetic marker of a temperature sensitive R plasmid, Rtsl in Escherichia coli.

3. Volatilisation of mercury and organomercurials determined by inducible R-factor systems in enteric bacteria.

4. Cleavage of structural proteins during the assembly of the head of bacteriophage T4.

5. Decreased uptake of cadmium by a resistant strain of Staphylococcus aureus.

6. Mercury and cadmium resistances mediated by the penicillinase plasmid in Staphylococcus aureus.

7. Plasmid conferring increased sensitivity to mercuric chloride and cobalt chloride found in some laboratory strains of Escherichia coli K-12.

8. Outer membrane of Escherichia coli: properties of the F sex factor traT protein which is involved in surface exclusion.

9. Mercury and organomercurial resistances determined by plasmids in Pseudomonas.

10. Mercury resistance in a plasmid-bearing strain of Escherichia coli.

1. Adaptation of aquatic microbial communities to hg stress.

2. Genes encoding mercuric reductases from selected gram-negative aquatic bacteria have a low degree of homology with merA of transposon Tn501.

3. Phenotypic and genotypic adaptation of aerobic heterotrophic sediment bacterial communities to mercury stress.

4. Mechanism of resistance to silver ions in Klebsiella pneumoniae.

5. Involvement of mercury methylation in microbial mercury detoxication.

6. Detoxification of mercury, cadmium, and lead in Klebsiella aerogenes NCTC 418 growing in continuous culture.

7. Physiological role of mercury-methylation in Clostridium cochlearium T-2C.

8. Population density-dependent metal tolerance: One possible basis and its ecological implications.

9. Biotransformation of mercury by bacteria isolated from a river collecting cinnabar mine waters.

10. The merG gene product is involved in phenylmercury resistance in Pseudomonas strain K-62.