Abstract:
:It has been reported that the accumulation of K+ by Streptococcus faecalis is mediated by a transport system which required both ATP and the proton motive force (Bakker and Harold, J. Biol. Chem. 255:433-440, 1980). My results indicate that S. faecalis has a second transport system for K+. The features of this system are as follows: (i) the system is driven by ATP (or a derivative of ATP) and does not require the proton motive force; (ii) the system is normally absent in the wild-type strain but can be derepressed by lowering rhe intracellular concentration of K+; (iii) the pH optimum of this system is about 8.5, and no detectable K+ is accumulated at pH values below 6.5; and (iv) the rate of Rb+ accumulation by this system is very low. These properties are quite different from those of the transport system described by Bakker and Harold. Therefore, I propose that S. faecalis has two K+ transport systems.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Kobayashi Hdoi
10.1128/JB.150.2.506-511.1982subject
Has Abstractpub_date
1982-05-01 00:00:00pages
506-11issue
2eissn
0021-9193issn
1098-5530journal_volume
150pub_type
杂志文章abstract::Streptococcus equi subsp. zooepidemicus is an opportunistic pathogen. It has caused a very large economic loss in the swine industry of China and has become a threat to human health. We announce the complete genome sequence of S. equi subsp. zooepidemicus strain ATCC 35246, which provides opportunities to understand i...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.05700-11
更新日期:2011-10-01 00:00:00
abstract::Acholeplasma laidlawii cells grown with oleic acid produced much more colored carotenoids than did cells grown with elaidic acid. The amount of carotenoids was decreased 80 to 90% by growing the cells with 0.05 M propionate, resulting in a marked increase in the mobility of both 5-doxylstearate and 12-doxylstearate in...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.140.3.944-948.1979
更新日期:1979-12-01 00:00:00
abstract::Streptomyces clavuligerus produces at least five different clavam metabolites, including clavulanic acid and the methionine antimetabolite, alanylclavam. In vitro transposon mutagenesis was used to analyze a 13-kb region upstream of the known paralogue gene cluster. The paralogue cluster includes one group of clavulan...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00698-08
更新日期:2008-12-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.5.2045-2050.1988
更新日期:1988-05-01 00:00:00
abstract::The secretomes of a virulent Bacillus anthracis strain and of avirulent strains (cured of the virulence plasmids pXO1 and pXO2), cultured in rich and minimal media, were studied by a comparative proteomic approach. More than 400 protein spots, representing the products of 64 genes, were identified, and a unique patter...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.188.10.3551-3571.2006
更新日期:2006-05-01 00:00:00
abstract::The neuS-encoded polysialytransferase (polyST) in Escherichia coli K1 catalyzes synthesis of polysialic acid homopolymers composed of unbranched sialyl alpha 2,8 linkages. Subcloning and complementation experiments showed that the K1 neuS was functionally interchangeable with the neuS from E. coli K92 (S. M. Steenberg...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.174.15.5127-5131.1992
更新日期:1992-08-01 00:00:00
abstract::The tuf gene which encodes peptide chain elongation factor Tu was found to be duplicated in nine enteric and four nonenteric gram-negative bacteria, but present only in one copy in two gram-positive genera. In two of the nonenteric gram-negative genera, Pseudomonas and Caulobacter, the duplicate tuf genes were found t...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.148.3.1006-1011.1981
更新日期:1981-12-01 00:00:00
abstract::Ribonucleotide reductases (RNRs) are crucial to all living cells, since they provide deoxyribonucleotides (dNTPs) for DNA synthesis and repair. In Mycobacterium tuberculosis, a class Ib RNR comprising nrdE- and nrdF2-encoded subunits is essential for growth in vitro. Interestingly, the genome of this obligate human pa...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01409-08
更新日期:2009-02-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.184.8.2281-2286.2002
更新日期:2002-04-01 00:00:00
abstract::Pyruvate kinase of Streptococcus mutans JC 2 had an absolute and specific requirement for glucose-6-phosphate. Inorganic phosphate was a strong inhibitor. The enzyme required K+ or NH4+ and Mg2+ or Mn2+. S. mutans FIL and E 49, Streptococcus bovis ATCC 9809, and Streptococcus salivarius ATCC 13419 had also glucose-6-p...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.124.1.562-563.1975
更新日期:1975-10-01 00:00:00
abstract::In Caulobacter crescentus biogenesis of the flagellar organelle occurs during one stage of its complex life cycle. Thus in synchronous cultures it is possible to assay the sequential synthesis and assembly of the flagellum and hook in vivo with a combination of biochemical and radioimmunological techniques. The period...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.135.3.1062-1069.1978
更新日期:1978-09-01 00:00:00
abstract::The induction of paraffin oxidation in intact cells of Pseudomonas aeruginosa was investigated. Oxidation of (14)C-heptane by cell-free extracts of adapted cells showed that the activity of whole cells is a reliable reflection of the synthesis of the first enzyme in the degradation of n-alkanes. Induction was signific...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.96.3.706-712.1968
更新日期:1968-09-01 00:00:00
abstract::Deletions in the rpoBC region have been transferred to phage lambda and characterized in detail by genetic, structural, and functional tests. We thus extend and confirm knowledge of the organization of this part of the chromosome. The new phages are useful tools for studying the genes for the bacterial transcription a...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.140.2.479-489.1979
更新日期:1979-11-01 00:00:00
abstract::Azotobacter vinelandii presents a differentiation process leading to the formation of desiccation-resistant cysts. Alginate, the exopolysaccharide produced by this bacterium, has been postulated to have a role in cyst formation. Here, we report the cloning and characterization of the A. vinelandii gene coding for the ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.7.1793-1799.1996
更新日期:1996-04-01 00:00:00
abstract::Carere, A., and Isabella Spada-Sermonti (Istituto Superiore di Sanità, Rome, Italy). Nutritional mutations and transduction by ultraviolet-inactivated phage in Staphylococcus aureus. J. Bacteriol. 88:226-232. 1964.-By use of a semisynthetic medium, various nutritional mutants of Staphylococcus aureus 80 were isolated....
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.88.1.226-232.1964
更新日期:1964-07-01 00:00:00
abstract::Cleared lysates of 13 species of filamentous cyanobacteria were examined for the presence of extrachromosomal DNA by using agarose gel electrophoresis and ethidium bromide staining. Seven of the 13 species contained extrachromosomal covalently closed circular DNA, and all but 1 species contained multiple elements. The...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.136.1.414-418.1978
更新日期:1978-10-01 00:00:00
abstract::The effect of plasmid CAM-OCT on responses to UV irradiation was compared in Pseudomonas aeruginosa, in Pseudomonas putida, and in Pseudomonas putida mutants carrying mutations in UV response genes. CAM-OCT substantially increased both survival and mutagenesis in the two species. P. aeruginosa strains without CAM-OCT ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.171.2.975-982.1989
更新日期:1989-02-01 00:00:00
abstract::Amino acid transport rates and amino acid binding proteins were examined in a strain containing the rho-120 mutation (formerly SuA), which has been shown to lower the rho-dependent, ribonucleic acid-activated adenosine triphosphatase activity to 9% of the rho activity in the isogenic wild-type strain. Tryptophan and p...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.130.3.1024-1029.1977
更新日期:1977-06-01 00:00:00
abstract::Dobrogosz, Walter J. (University of Illinois, Urbana) and Ralph D. DeMoss. Pentose utilization by Pediococcus pentosaceus. J. Bacteriol. 85:1356-1364. 1963.-Data are presented which indicate that pentoses are metabolized by Pediococcus pentosaceus through the use of an inducible phosphoketolase pathway. The utilizatio...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.85.6.1356-1364.1963
更新日期:1963-06-01 00:00:00
abstract::Microorganisms and plants utilize two-component systems to regulate adaptive responses to changing environmental conditions. Sensor kinases detect stimuli and alter their autophosphorylation activity accordingly. Signal propagation occurs via the transfer of phosphoryl groups from upstream kinases to downstream respon...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00089-20
更新日期:2020-07-09 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.11.3127-3132.1996
更新日期:1996-06-01 00:00:00
abstract::Subgenomic DNA microarrays were employed to evaluate the expression of the accessory gene regulator (agr locus) as well as multiple virulence-associated genes in Staphylococcus aureus. Gene expression was examined during growth of S. aureus in vitro in standard laboratory medium and rabbit serum and in vivo in subcuta...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.184.4.1095-1101.2002
更新日期:2002-02-01 00:00:00
abstract::Lactobacillus plantarum is a highly versatile lactic acid bacterium found in various ecological niches, such as fermented vegetable, meat, and dairy products and the gastrointestinal tract. We sequenced the genome of L. plantarum NC8, a naturally plasmid-free strain, which has been used as a model strain in many labor...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00141-12
更新日期:2012-05-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.130.2.635-641.1977
更新日期:1977-05-01 00:00:00
abstract::Thirteen different serotypes of Listeria monocytogenes can be distinguished on the basis of variation in somatic and flagellar antigens. Although the known virulence genes are present in all serotypes, greater than 90% of human cases of listeriosis are caused by serotypes 1/2a, 1/2b, and 4b and nearly all outbreaks of...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.185.18.5573-5584.2003
更新日期:2003-09-01 00:00:00
abstract::A Bacillus subtilis sigM null mutant, lacking the extracytoplasmic function sigma(M) protein, was sensitive to paraquat (PQ), a superoxide-generating reagent, but not to the redox stress-inducing compounds hydrogen peroxide, cumene hydroperoxide, t-butyl hydroperoxide, or diamide. Surprisingly, a sigM mutant was only ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.187.9.2948-2956.2005
更新日期:2005-05-01 00:00:00
abstract::The experiments presented in this paper suggest that the shift observed in sedimentation of deoxyribonucleic acid from cells of Escherichia coli subjected to amino acid starvation is related to inhibition of ribonucleic acid synthesis rather than to its release from the membrane at the termination of replication. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.137.2.790-794.1979
更新日期:1979-02-01 00:00:00
abstract::The ability of deoxyribonucleic acid (DNA) isolated from a number of actinomycetes to reassociate with reference DNA from Actinoplanes philippinensis or Streptomyces venezuelae has been measured. All of the DNA preparations except for those from Nocardia erythropolis and Thermomonospora viridis contained 70 to 73 mole...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.102.1.30-35.1970
更新日期:1970-04-01 00:00:00
abstract::Streptococcus suis serotype 2 (S. suis 2) is an important swine and human pathogen responsible for septicemia and meningitis. A novel gene, designated atl and encoding a major autolysin of S. suis 2 virulent strain HA9801, was identified and characterized in this study. The Atl protein contains 1,025 amino acids with ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.06231-11
更新日期:2012-03-01 00:00:00
abstract::The Escherichia coli K-12 mtr gene, which encodes a tryptophan-specific permease, was cloned, and its nucleotide sequence was determined. The precise location of the mtr gene at 69 min on the E. coli chromosome was determined. The mtr gene product was identified as a 414-amino-acid residue protein with a calculated mo...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.173.13.4133-4143.1991
更新日期:1991-07-01 00:00:00