Literature DB >> 21602356

Significance of the glutamate-139 residue of the V-type Na+-ATPase NtpK subunit in catalytic turnover linked with salt tolerance of Enterococcus hirae.

Miyuki Kawano-Kawada1, Hiroko Takahashi, Kazuei Igarashi, Takeshi Murata, Ichiro Yamato, Michio Homma, Yoshimi Kakinuma.   

Abstract

A Glu139Asp mutant of the NtpK subunit (kE139D) of Enterococcus hirae vacuolar-type ATPase (V-ATPase) lost tolerance to sodium but not to lithium at pH 10. Purified kE139D V-ATPase retained relatively high specific activity and affinity for the lithium ion compared to the sodium ion. The kE139 residue of V-ATPase is indispensable for its enzymatic activity that is linked with the salt tolerance of enterococci.

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Year:  2011        PMID： 21602356      PMCID： PMC3133306          DOI： 10.1128/JB.01537-10

Source DB:  PubMed          Journal:  J Bacteriol        ISSN： 0021-9193            Impact factor:   3.490


  21 in total

1.  Deletion analysis of the subunit genes of V-type Na+-ATPase from Enterococcus hirae.

Authors:  Toshiaki Hosaka; Kazuma Takase; Takeshi Murata; Yoshimi Kakinuma; Ichiro Yamato
Journal:  J Biochem       Date:  2006-06       Impact factor: 3.387

2.  Primary structure of the alpha-subunit of vacuolar-type Na(+)-ATPase in Enterococcus hirae. Amplification of a 1000-bp fragment by polymerase chain reaction.

Authors:  Y Kakinuma; K Igarashi; K Konishi; I Yamato
Journal:  FEBS Lett       Date:  1991-11-04       Impact factor: 4.124

3.  Sodium/proton antiporter in Streptococcus faecalis.

Authors:  Y Kakinuma
Journal:  J Bacteriol       Date:  1987-09       Impact factor: 3.490

4.  Arginine residue at position 573 in Enterococcus hirae vacuolar-type ATPase NtpI subunit plays a crucial role in Na+ translocation.

Authors:  Miyuki Kawano; Kazuei Igarashi; Ichiro Yamato; Yoshimi Kakinuma
Journal:  J Biol Chem       Date:  2002-04-30       Impact factor: 5.157

Review 5.  Sodium-translocating adenosine triphosphatase in Streptococcus faecalis.

Authors:  Y Kakinuma; K Igarashi
Journal:  J Bioenerg Biomembr       Date:  1989-12       Impact factor: 2.945

6.  Altered expression of the H+ ATPase in Streptococcus faecalis membranes.

Authors:  A Abrams; C Jensen
Journal:  Biochem Biophys Res Commun       Date:  1984-07-18       Impact factor: 3.575

7.  Effects of nigericin and monactin on cation permeability of Streptococcus faecalis and metabolic capacities of potassium-depleted cells.

Authors:  F M Harold; J R Baarda
Journal:  J Bacteriol       Date:  1968-03       Impact factor: 3.490

8.  Extrusion of sodium and hydrogen ions as the primary process in potassium ion accumulation by Streptococcus faecalis.

Authors:  F M Harold; J R Baarda; E Pavlasova
Journal:  J Bacteriol       Date:  1970-01       Impact factor: 3.490

9.  ATP-driven exchange of Na+ and K+ ions by Streptococcus faecalis.

Authors:  Y Kakinuma; F M Harold
Journal:  J Biol Chem       Date:  1985-02-25       Impact factor: 5.157

10.  Ion binding and selectivity of the rotor ring of the Na+-transporting V-ATPase.

Authors:  Takeshi Murata; Ichiro Yamato; Yoshimi Kakinuma; Mikako Shirouzu; John E Walker; Shigeyuki Yokoyama; So Iwata
Journal:  Proc Natl Acad Sci U S A       Date:  2008-06-16       Impact factor: 11.205
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  1 in total

1.  Mutagenesis of the residues forming an ion binding pocket of the NtpK subunit of Enterococcus hirae V-ATPase.

Authors:  Miyuki Kawano-Kawada; Tomoko Iwaki; Toshiaki Hosaka; Takeshi Murata; Ichiro Yamato; Michio Homma; Yoshimi Kakinuma
Journal:  J Bacteriol       Date:  2012-06-22       Impact factor: 3.490
  1 in total

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