Publications

TitleAbstractYear
Filter
PMID
Filter
the function of ubiquinone in klebsiella aerogenes. 19734148761
mutants of klebsiella aerogenes lacking glutamate dehydrogenase.a mutant of klebsiella aerogenes lacking glutamate synthase activity (asm-200) is blocked in only one pathway of glutamate synthesis and can still use glutamate dehydrogenase to produce glutamate when ammonia in sufficient concentration, i.e., higher than 1 mm, is provided in the medium. however, a mutant that has neither glutamate synthase nor glutamate dehydrogenase activities (asm-200, gdhd1) requires glutamate. transductants obtained by phage grown on wild-type cells of this double mutant, s ...19744149514
[lack of reproduction in certain enterobacter aerogenes strains producing fraction 2 aerocines]. 19744151210
different effects of 2-n-heptyl-4-hydroxyquinoline-n-oxide on oxygen and nitrate respiration in klebsiella aerogenes. 19744155268
regulation of nitrogen fixation in klebsiella pneumoniae: evidence for a role of glutamine synthetase as a regulator of nitrogenase synthesis.mutations causing constitutive synthesis of glutamine synthetase (glnc(-) phenotype) were transferred from klebsiella aerogenes into klebsiella pneumoniae by p1-mediated transduction. such glnc(-) strains of k. pneumoniae have constitutive levels of glutamine synthetase. two of three glnc(-) strains of k. pneumoniae studied, each containing independently isolated mutations that confer the glnc(-) phenotype, continue to synthesize nitrogenase in the presence of nh(4) (+). one strain, kp5069, prod ...19744156359
magnesium starvation of aerobacter aerogenes. iv. cytochemical changes.a number of cytochemical changes were revealed by microscopic observations of aerobacter aerogenes populations starving for mg(++). during the first few hours, while the synthesis of deoxyribonucleic acid (dna) was paralleled by an increase in viable bacteria, the cells became progressively smaller. subsequently, the number of viable cells in the culture remained constant in spite of continuing dna synthesis, and the cells progressively elongated into filamentous forms. during this time, a secon ...19674164036
biomagnification of p, p'-ddt and methoxychlor by bacteria.aerobacter aerogenes and bacillus subtilis accumulated p, p'-ddt and methoxychlor directly from water. uptake of both (14)c-labeled organochlorine insecticides was rapid; 80 to 90% of the 24-h residues were reached within 30 min. total cellular residues varied linearly with concentrations of ddt and methoxychlor in water ranging from 0.5 to 5.0 mug/liter. the residue magnification factors from water were between 1,400- to 4,300-fold, but were independent of insecticide concentrations in water. w ...19734199339
hydroxamate recognition during iron transport from hydroxamate-ion chelates.kinetics of radioactive iron transport from three structurally different secondary hydroxamate-iron chelates (schizokinen-iron, produced by bacillus megaterium atcc 19213; desferal-iron, produced by an actinomycete; and aerobactin-iron, produced by aerobacter aerogenes 62-1) revealed that b. megaterium sk11 (a mutant which cannot synthesize schizokinen) has a specific transport system for utilization of ferric hydroxamates with a recognition capacity based on the chemical structure of the hydrox ...19734199516
fate of labeled hydroxamates during iron transport from hydroxamate-ion chelates.the fate of the hydroxamic acid-iron transport cofactors during iron uptake from the (59)fe(3+) chelates of the (3)h-labeled hydroxamates schizokinen and aerobactin was studied by assay of simultaneous incorporation of both (59)fe(3+) and (3)h. in the schizokinen-producing organism bacillus megaterium atcc 19213 transport of (59)fe(3+) from the (3)h-schizokinen-(59)fe(3+) chelate at 37 c was accompanied by rapid uptake and release (within 2 min) of (3)h-schizokinen, although (3)h-schizokinen dis ...19734199517
comparative immunological and enzymatic study of the tryptophan synthetase beta 2 subunit in the enterobacteriaceae.the beta(2) subunits of tryptophan synthetase, formula alpha(2)beta(2), from escherichia coli, shigella dysenteriae, enterobacter aerogenes, salmonella typhimurium, and serratia marcescens were compared by three criteria. (i) alphabeta association constants for the various beta(2) subunits and e. coli alpha subunit varied between 3.6 x 10(8)m(-1) for e. coli and 0.33 x 10(8)m(-1) for s. marcescens; values for the other organisms were intermediate. (ii) antiserum neutralization of the beta(2) sub ...19724204906
amino-terminal sequence of the tryptophan synthetase alpha chain of bacillus subtilis.the sequence of the 46 nh(2)-terminal residues of the tryptophan synthetase alpha chain of bacillus subtilis was determined and compared with the corresponding sequences of escherichia coli, shigella dysenteriae, salmonella typhimurium, aerobacter aerogenes, serratia marcescens, and pseudomonas putida. a deletion of six residues was found at the nh(2)-terminal end of the alpha chain of b. subtilis.19744206869
molecular characterization of the r factors implicated in the carbenicillin resistance of a sequence of pseudomonas aeruginosa strains isolated from burns.an outbreak of r-factor-mediated carbenicillin resistance in pseudomonas aeruginosa in burned patients in march 1969 was followed by a second outbreak 6 months later. no r-factor-carrying p. aeruginosa strains were detected in the intervening period but r-factor-determined lactamase was commonly encountered, particularly in klebsiella aerogenes strains. a comparison of the molecular properties of the r factors in pseudomonads from the first and second phases with those in the klebsiella strains ...19734208284
citrate metabolism in aerobacter cloacae.growth of aerobacter cloacae on citrate either anaerobically or aerobically did not require and was not stimulated by the presence of na(+) in the medium. citrate was metabolized anaerobically via the fermentation pathway as evidenced by the (i) presence of oxalacetate decarboxylase, (ii) induction of citrate lyase, and (iii) repression of alpha-ketoglutarate dehydrogenase under anaerobic conditions. thus, although all the other enzymes of the citric acid cycle were present in anaerobic cells, t ...19744211873
newer aminoglycosides--amikacin and tobramycin: an in-vitro comparison with kanamycin and gentamicin.tobramycin and amikacin are new aminoglycoside antibiotics which resemble gentamicin and kanamycin respectively in pharmacokinetic, toxicological, and some microbiological respects. minimum inhibitory concentrations for these four antibiotics have been determined against 393 bacterial strains (13 species from eight genera) isolated from clinical materialkanamycin was the least active, 89% of the pseudomonas aeruginosa strains being resistant. resistance was also found in 21% of the klebsiella ae ...19744213265
effect of ethylenediaminetetraacetic acid and related chelating agents on whole cells of gram-negative bacteria.the effects of ethylenediaminetetraacetic acid and of four other chelating agents on seven strains of gram-negative bacteria are described. changes in viability, cell lysis, and release of intracellular materials from suspensions in various buffers, ph 7.8 or 9.2, were observed. cyclohexane-1,2-diaminotetraacetic acid was the most toxic compound, whereas iminodiacetic acid and nitrilotriacetic acid had little bactericidal activity. the activity of the five drugs appeared to be related to their c ...19744218945
synthesis of rna, dna & protein during the growth of normal, viomycin-trained & reverted cultures of aerobacter aerogenes. 19674228208
[study of glucose metabolism in denitrifying bacteria. i. aerobacter aerogenes]. 19684234437
subcutaneous gas in diabetes mellitus due to aerobacter aerogenes infection. 19694240074
d-fructose 1-phosphate kinase and d-fructose 6-phosphate kinase from aerobacter aerogenes. a comparative study of regulatory properties. 19694242639
unimpaired de novo synthesis of 4-aminobenzoate in a mutant of aerobacter aerogenes requiring 4-aminobenzoate for growth; structure of compond a. 19734272305
drug resistance in aerobacter aerogenes. 19654284588
[regulation of the biosynthesis and function of d- and l-lactate dehydrogenases in aerobacter aerogenes]. 19654284999
metabolism of d-mannose in aerobacter aerogenes: evidence for a cyclic pathway.kamel, m. y. (michigan state university, east lansing), and r. l. anderson. metabolism of d-mannose in aerobacter aerogenes: evidence for a cyclic pathway. j. bacteriol. 92:1689-1697. 1966.-evidence is presented which suggests a cyclic pathway for the constitutive utilization of d-mannose in extracts of aerobacter aerogenes prl-r3. d-mannose is phosphorylated with d-glucose-6-phosphate to yield d-mannose-6-phosphate and d-glucose. d-glucose-6-phosphate may be regenerated by isomerization of d-ma ...19664289357
replacement of a phosphoenolpyruvate-dependent phosphotransferase by a nicotinamide adenine dinucleotide-linked dehydrogenase for the utilization of mannitol.mannitol is dissimilated by aerobacter aerogenes via an inducible pathway initiated by a phosphotransferase system dependent upon phosphoenolpyruvate as the phosphoryl donor. a mutational block in this pathway can be suppressed either at the phenotypic level by induction of d-arabitol dehydrogenase, an enzyme fortuitously capable of converting mannitol to fructose, or genotypically by a constitutive mutation in the d-arabitol system.19674289962
the hydrolysis of inositol phosphates by aerobacter aerogenes. 19674291648
isolation and properties of mutants of aerobacter aerogenes blocked in nitrate assimilation. 19674291666
the structure of the serotype 2 capsular polysaccharide of aerobacter aerogenes. 19674293395
derepression of phosphomonoesterase and phosphodiesterase activities in aerobacter aerogenes. 19674293966
nitrate reduction in aerobacter aerogenes. i. isolation and properties of mutant strains blocked in nitrate assimilation and resistant against chlorate. 19674297893
metabolism of d-fructose in aerobacter aerogenes: analysis of mutants lacking d-fructose 6-phosphate kinase and d-fructose 1,6-diphosphatase.the relative significance of the pathways for the conversion of d-fructose to d-fructose 1,6-diphosphate via d-fructose 1-phosphate or d-fructose 6-phosphate in aerobacter aerogenes prl-r3 was assessed by observing growth patterns of mutants lacking either d-fructose 6-phosphate kinase or d-fructose 1,6-diphosphatase. the mutant lacking d-fructose 6-phosphate kinase grew well on d-fructose or glycerol but not on d-glucose, whereas the mutant lacking d-fructose 1,6-diphosphatase grew on d-glucose ...19684298731
[substrates and competitive inhibitor of assimilatory and dissimilatory nitrate reductase of aerobacter aerogenes]. 19674302524
regulation of the enzymes involved in the biosynthesis of 2,3-dihydroxybenzoic acid in aerobacter aerogenes and escherichia coli. 19694306838
control of respiration and metabolism in growing klebsiella aerogenes. the role of adenine nucleotides.1. a rapid-sampling technique was used to obtain perchloric acid extracts of cells growing in a chemostat culture, so that meaningful values for atp content could be obtained in spite of the fact that the turnover time for the total atp content was about 1sec. 2. for steady-state growth, it was found that, in a glucose-limited chemostat culture, the atp/adp concentration ratio was approximately constant with changes in dissolved-oxygen tensions above the critical value, but fell when the culture ...19694309671
the metabolism of d-glucarate by pseudomonas acidovorans.1. dehydratases that converted d-glucarate into 4-deoxy-5-oxoglucarate were partially purified from klebsiella aerogenes and pseudomonas acidovorans. 2. when d-glucarate was metabolized to 2,5-dioxovalerate it appeared that water and carbon dioxide were removed from 4-deoxy-5-oxoglucarate in one enzymic step: 4,5-dihydroxy-2-oxovalerate was not an intermediate in this reaction. 3. a method for the enzymic determination of d-glucarate is described.19694311826
gram-negative bacilli in burns.in a period of two years, 865 strains of gram-negative bacilli other than pseudomonas aeruginosa isolated from burns were identified by a range of tests. the commonest species were proteus mirabilis, escherichia coli, and enterobacter cloacae. many strains of klebsiella aerogenes, enterobacter aerogenes, and bacterium anitratum were also found.a large proportion of the strains were tested for sensitivity to nalidixic acid, ampicillin, kanamycin, chloramphenicol, tetracycline, and carbenicillin, ...19694312399
the isolation and characterization of a hydroxamic acid (aerobactin) formed by aerobacter aerogenes 62-i. 19694313071
d-apiose reductase from aerobacter aerogenes.a strain of aerobacter aerogenes prl-r3 has been isolated which utilizes d-apiose as its sole source of carbon. a new enzyme, d-apiose reductase, was discovered in this strain. the enzyme was not present when the strain was grown on d-glucose. d-apiose reductase catalyzes the nicotinamide adenine dinucleotide-dependent interconversion of d-apiose and d-apiitol. the enzyme is specific for d-apiose and d-apiitol, with a few possible exceptions. the k(m) for d-apiose is 0.02 m. the k(m) for d-apiit ...19704314545
structure of klebsiella aerogenes type 8 polysaccharide. 19704315134
enzymatic removal of diacetyl from beer. ii. further studies on the use of diacetyl reductase.diacetyl removal from beer was studied with whole cells and crude enzyme extracts of yeasts and bacteria. cells of streptococcus diacetilactis 18-16 destroyed diacetyl in solutions at a rate almost equal to that achieved by the addition of whole yeast cells. yeast cells impregnated in a diatomaceous earth filter bed removed all diacetyl from solutions percolated through the bed. undialyzed crude enzyme extracts from yeast cells removed diacetyl very slowly from beer at its normal ph (4.1); at a ...19704315861
susceptibility of enterobacter aerogenes and enterobacter cloacae to 19 antimicrobial agents in vitro. 19704318051
enzymatic removal of diacetyl from beer. 3. enzyme protection and regeneration of cofactor.use of diacetyl reductase, a reduced nicotinamide adenine dinucleotide (nadh)-requiring enzyme, to eliminate diacetyl off-flavor in beer was studied. the crude enzyme was extracted from aerobacter aerogenes and partially purified by ammonium sulfate precipitation or sephadex chromatography. in the semipure state, the enzyme was inactivated by lyophilization; in a crude state, the lyophilized extract remained stable for at least 4 months at - 20 c. a 50% reduction in specific activity within 5 mi ...19704318450
diacetyl (acetoin) reductase from aerobacter aerogenes. evidence for multiple forms of the enzyme. 19714327092
the reaction inactivation of citrate lyase from aerobacter aerogenes. 19714327189
the structure of aerobacter aerogenes capsular polysaccharide. 19714328830
the pathway of myo-inositol degradation in aerobacter aerogenes. identification of the intermediate 2-deoxy-5-keto-d-gluconic acid. 19714328831
the pathway of myo-inositol degradation in aerobacter aerogenes. conversion of 2-deoxy-5-keto-d-gluconic acid to glycolytic intermediates. 19714328832
resistance to catabolite repression of histidase and proline oxidase during nitrogen-limited growth of klebsiella aerogenes. 19714331387
on substrate-accelerated death in klebsiella aerogenes. 19724339338
phosphatase synthesis in klebsiella (aerobacter) aerogenes growing in continuous culture.1. phosphatase synthesis was studied in klebsiella aerogenes grown in a wide range of continuous-culture systems. 2. maximum acid phosphatase synthesis was associated with nutrient-limited, particularly carbohydrate-limited, growth at a relatively low rate, glucose-limited cells exhibiting the highest activity. compared with glucose as the carbon-limiting growth material, other sugars not only altered the activity but also changed the ph-activity profile of the enzyme(s). 3. the affinity of the ...19724342213
klebsiella aerogenes strain carrying drug-resistance determinants and a lac plasmid.in addition to carrying determinants conferring resistance to at least two antibiotics, chloramphenicol and streptomycin, a klebsiella aerogenes strain contains a plasmid responsible for increased beta-galactosidase activity. the plasmid can be transferred to escherichia coli and salmonella typhimurium strains. k. aerogenes segregants without the plasmid grow on lactose one-half as fast as the parent strain and contain only one-tenth to one-fifth as much beta-galactosidase.19724342813
diacetyl (acetoin) reductase from aerobacter aerogenes. kinetic studies of the reduction of diacetyl to acetoin. 19734349658
formation of 2,3-pentanediol from 2,3-pentanedione and acetylethylcarbinol by diacetyl(acetoin)reductase from aerobacter aerogenes. a possible new pathway. 19734350968
anthranilate synthase-anthranilate 5-phosphoribosyl 1-pyrophosphate phosphoribosyltransferase from aerobacter aerogenes.1. anthranilate synthase and phosphoribosyltransferase from aerobacter aerogenes purify simultaneously and sediment together on sucrose gradients, showing that they occur as an enzyme aggregate. both activities of the intact aggregate are subject to inhibition by tryptophan. 2. by using appropriate auxotrophic mutants it was shown that an intact active enzyme aggregate is formed when the components come from separate mutant strains. an intact active aggregate can also be formed when one componen ...19724352716
butanol-soluble glycosyl transferases in klebsiella aerogenes. 19734355907
letter: a phosphodiesterase from enterobacter aerogenes. 19734357681
methods for visualization of enzymes in polyacrylamide gels.white bands resulting from precipitation of dodecan-1-ol liberated by hydrolysis of sodium dodecyl sulfate and decan-5-ol released by hydrolysis of decan-5-yl sulfate produced zymograms of the primary and secondary alkylsulfatases from pseudomonas c(12)b. gas-liquid chromatographic analyses of ether extracts of the precipitate-containing segments of the zymograms confirmed the identity of the alcohols which were not discerned in extracts of segments of the gels other than those containing precip ...19744358859
the lactose system in klebsiella aerogenes v9a. 3. specific repression of the lac operon by melibiose and raffinose. 19734360018
levels of nicotinamide adenine dinucleotide and reduced nicotinamide adenine dinucleotide in facultative bacteria and the effect of oxygen.nicotinamide adenine dinucleotide (nad) and reduced nad (nadh) levels have been measured in bacterial cultures. the cofactors were assayed by using the very sensitive cycling assay described previously by cartier. control experiments showed that the level of total nad(h) falls during harvesting, and so samples were taken quickly from growing cultures and extracted immediately without separating the cells from the medium. total nad(h) ranged from 4.0 to 11.7 mumoles/g of dry cells for three facul ...19724360220
regulation of myo-inositol catabolism in aerobacter aerogenes.a mutant of aerobacter aerogenes produces constitutively the series of enzymes that mediates the degradation of myo-inositol and which in the wildtype strain is inducible. when grown on l-histidine, the mutant forms the enzymes at a level approximately three times as high as that seen in the induced wild type. the enzymes appear to be coordinately regulated and are sensitive to catabolite repression. unless repressed, the synthesis of these enzymes markedly retards the growth of the mutant.19724360221
purification and kinetic characterization of a monovalent cation-activated glycerol dehydrogenase from aerobacter aerogenes. 19744364415
mechanism of enzymic acetylation of des-acetyl citrate lyase.a new enzyme, acetate:sh-[acyl-carrier-protein] enzyme ligase (amp), has been purified about 30-fold from cell-free extracts of klebsiella aerogenes. the enzyme, in the presence of acetate and atp, catalyzes the acetylation of enzymically inactive des-acetyl citrate lyase to enzymically active citrate lyase (ec 4.1.3.6). acetate and atp could be replaced by acetyl adenylate. acetyl-coa can act as acetyl donor in this activation only if trace amounts of adenine nucleotides and auxiliary enzymes a ...19744365579
ribitol catabolic pathway in klebsiella aerogenes.in klebsiella aerogenes w70, there is an inducible pathway for the catabolism of ribitol consisting of at least two enzymes, ribitol dehydrogenase (rdh) and d-ribulokinase (drk). these two enzymes are coordinately controlled and induced in response to d-ribulose, an intermediate of the pathway. whereas wild-type k. aerogenes w70 are unable to utilize xylitol as a carbon and energy source, mutants constitutive for the ribitol pathway are able to utilize rdh to oxidize the unusual pentitol, xylito ...19744366025
d-arabitol catabolic pathway in klebsiella aerogenes.klebsiella aerogenes strain w70 has an inducible pathway for the degradation of d-arabitol which is comparable to the one found in aerobacter aerogenes strain prl-r3. the pathway is also similar to the pathway of ribitol catabolism in that it is composed of a pentitol dehydrogenase, d-arabitol dehydrogenase (adh), and a pentulokinase, d-xylulokinase (dxk). these two enzymes are coordinately controlled and induced in response to d-arabitol, the apparent inducer of synthesis of these enzymes. we o ...19744366026
regulation of glycerol catabolism in klebsiella aerogenes.the utilization of glycerol as a carbon source for growth by klebsiella aerogenes, strain 2103, involves separate aerobic (sn-glycerol-3-phosphate or g3p) and anaerobic (dihydroxyacetone or dha) pathways of catabolism. enzyme and transport activities of the aerobic pathway are elevated in cells grown under oxygenated conditions on glycerol or g3p. anaerobic growth on g3p as carbon source requires the presence of an exogenous hydrogen acceptor such as fumarate; cells thus grown also are highly in ...19744366250
close genetic linkage of the determinants of the ribitol and d-arabitol catabolic pathways in klebsiella aerogenes.klebsiella aerogenes strain w70 has separate inducible pathways for the degradation of the pentitols ribitol and d-arabitol. these pathways are closely linked genetically as determined by transduction with phage pw52. there are two regulatory sites for the ribitol catabolic pathway as defined by loci for mutations to constitutive synthesis of ribitol dehydrogenase and d-ribulokinase, rbtb and rbtc. the two control sites are separated by a site represented by the dalb22 mutation. this mutation de ...19744366363
[klebsiella aerogenes infection in turkey chicks and therapeutic attempts using polymyxin b]. 19744368172
isoprenoid alcohol kinase--a third butanol-soluble enzyme in klebsiella aerogenes membranes. 19744373523
catabolite repression and derepression of arylsulfatase synthesis in klebsiella aerogenes.when a mutant (mao(-)) of klebsiella aerogenes lacking an enzyme for tyramine degradation (monoamine oxidase) was grown with d-xylose as a carbon source, arylsulfatase was repressed by inorganic sulfate and repression was relieved by tyramine. when the cells were grown on glucose, tyramine failed to derepress the arylsulfatase synthesis. when grown with methionine as the sole sulfur source, the enzyme was synthesized irrespective of the carbon source used. addition of cyclic adenosine monophosph ...19744376143
a comparison of wild-type and mutant ribitol dehydrogenases from klebsiella aerogenes.a ribitol dehydrogenase (ribitol-nad(+) oxidoreductase, ec. 1.1.1.56) having increased specificity and catalytic efficiency toward xylitol was isolated from mutant strains of klebsiella aerogenes, which were selected for increased growth rate on xylitol over the ribitol dehydrogenase constitutive wild-type organism. 2. the mutant enzyme was purified to homogeneity and its general characteristics were compared with those of the previously purified wild-type enzyme. 3. initial-velocity steady-stat ...19744376942
pullulanase synthesis in klebsiella (aerobacter) aerogenes strains growing in continuous culture.1. pullulanase synthesis was studied in 16 classified (n.c.i.b.) strains and in an industrial strain (r) of klebsiella aerogenes grown in chemostats containing maltose as inducer and sole carbon source. 2. maximum synthesis was associated with carbon-limited growth at a low dilution rate (about 0.2h(-1)). the enzyme remained firmly cell-bound and seemed to be located on the cell surface. 3. three strains had high activity (r, n.c.i.b. 5938, 8017), twelve were intermediate, and two (n.c.i.b. 8153 ...19744376962
the bacterial induction of homograft sensitivity. ii. effects of sensitization with staphylococci and other microoorganisms.heat-killed strains of staphylococcus aureus and staphylococcus albus can induce in guinea pigs a state of altered reactivity to skin homografts which is indistinguishable from that which results from sensitization with homologous tissues or group a streptococci. challenge of suitably prepared recipients with first-set skin homografts obtained from unrelated randomly selected donors elicits white graft reactions or accelerated rejection of such grafts. other bacteria tested included lancefield s ...19654379017
the action of ampicillin on aerobacter (klebsiella) aerogenes. 19684385438
uridine diphosphate d-glucose dehydrogenase of aerobacter aerogenes.uridine diphosphate d-glucose dehydrogenase (ec 1.1.1.22) from aerobacter aerogenes has been partially purified and its properties have been investigated. the molecular weight of the enzyme is between 70,000 and 100,000. uridine diphosphate d-glucose is a substrate; the diphosphoglucose derivatives of adenosine, cytidine, guanosine, and thymidine are not substrates. nicotinamide adenine dinucleotide (nad), but not nicotinamide adenine dinucleotide phosphate, is active as hydrogen acceptor. the p ...19684387161
[biosynthesis of p-aminobenzoic acid. ii. demonstration of an intermediate in a mutant of aerobacter aerogenes]. 19694391584
morphological changes in growing colonies of aerobacter (klebsiella) aerogenes. 19704392284
wood wa: l-ribulose 5-phosphate 4-epimerase of aerobacter aerogenes. evidence for nicotinamide adenine dinucleotide-independent 4-epimerization by the crystalline enzyme. 19704395381
pathway of l-sorbose metabolism in aerobacter aerogenes. 19724401059
relation between cation and lipid content of cell walls of pseudomonas aeruginosa, proteus vulgaris and klebsiella aerogenes and their sensitivity to polymyxin b and other antibacterial agents. 19724402781
[klebsiella aerogenes as the causative agent of postabortion sepsis complicated by acute renal insufficiency]. 19744409939
nonidentical subunits of citrate lyase from klebsiella aerogenes. 19744414837
proceedings: klebsiella aerogenes. infections in the tropics. 19744415279
stereospecificity of the myo-inositol transport system of aerobacter aerogenes and sensitivity towards sulfhydryl reagents. 19744415893
effect of sodium on the transport and utilization of citric acid by aerobacter (enterobacter) aerogenes.sodium inhibited citrate uptake by two of the four strains of aerobacter (enterobacter) aerogenes used in these studies, had no effect on one strain, and stimulated citrate uptake by one strain. two of the four strains grew well anaerobically on citrate in the presence of na(+), one grew poorly, and one grew not at all either in the presence or absence of na(+). na(+) stimulated the aerobic growth of one strain on citrate, increased the total growth but not the rate of growth of one strain, and ...19744418533
[study of purine analogs of cobamide coezyme in a glycerol dehydratase system from aerobacter aerogenes]. 19744455705
proceedings: the respiratory nitrate reductase of klebsiella aerogenes: composition and the role of metal groups. 19744461583
klebsiella meningitis--report of nine cases. 19724486486
citrate lyase: a pantothenate-containing enzyme.citrate lyase from klebsiella aerogenes inactivated by reaction in the presence of substrate or by treatment with hydroxylamine can be reactivated with acetic anhydride only if its sulfhydryl groups are reduced. alkaline hydrolysis of pure citrate lyase yields about 3 mol of phosphopantothenate per mol of enzyme.19724504333
pyogaseous liver abscess due to klebsiella aerogenes. 19724510718
[isolation of aerobacter aerogenes from pozol of the state of campeche]. 19744526609
glutamine-binding subunit of glutamate synthase and partial reactions catalyzed by this glutamine amidotransferase.in the course of studies on glutamine-dependent carbamyl phosphate synthetase from aerobacter aerogenes, we purified another protein which was found to be glutamate synthase (ec 2.6.1.53). the enzyme, obtained in apparently homogeneous form (monomer molecular weight about 227,000; s(20,omega) = 17.6 s), was found to be a typical glutamine amidotransferase in that it exhibits glutaminase activity and can utilize ammonia in place of glutamine as a nitrogen donor. the enzyme also catalyzes at low r ...19744531004
trimethoprim resistance determined by r factors.r factors conferring a high level of resistance to trimethoprim have been identified in one strain of escherichia coli and one of klebsiella aerogenes, both isolated from infected urines.19724552466
studies on the relationship between the active sites of chorismate mutase-prephenate dehydrogenase from escherichia coli or aerobacter aerogenes. 19724552899
comparison of the substrate specificities of the -lactamases from klebsiella aerogenes 1082e and enterobacter cloacae p99.a potent beta-lactamase (ec 3.5.2.6) produced by a strain of klebsiella aerogenes (k. pneumoniae), 1082e, isolated from a hospital patient, has been examined. its properties were different from those of most gram-negative beta-lactamases previously reported. the enzyme has been partly purified, and its activity against a range of substrates has been compared with that of the enzyme from enterobacter cloacae (aerobacter cloacae) p99. the k. aerogenes enzyme, although predominantly a penicillinase ...19724553144
isolation of a polyvalent bacteriophage for escherichia coli, klebsiella pneumoniae, and aerobacter aerogenes.a lytic bacteriophage isolated from sewage was found to attack strains of aerobacter aerogenes, escherichia coli, and klebsiella pneumoniae, but not members of the genera salmonella, proteus, and serratia. the phage, designated phimp, contained deoxyribonucleic acid with a 50% guanine plus cytosine ratio and a molecular weight of 23.1 x 10(6) daltons. single-step growth experiments of phimp plated at 37 c on a. aerogenes a2 gave a mean latent period of 20 min, an average burst size of 103 plaque ...19724554466
the metabolism of d-arabinose: alternate kinases for the phosphorylation of d-ribulose in escherichia coli and aerobacter aerogenes. 19724557890
partial characterization of phosphoribosyl transferase, phosphoribosyl anthranilate isomerase, and indole glycerol phosphate synthase from serratia marcescens.the molecular organization of the enzymes phosphoribosyl (pr) transferase, phosphoribosyl anthranilate (pra) isomerase, and indole glycerol phosphate (ingp) synthase of the tryptophan biosynthetic pathway of serratia marcescens was investigated and compared with that reported in other enteric bacteria. pra isomerase and ingp synthase activities were found to reside in a single polypeptide chain, a situation analogous to that in escherichia coli, salmonella typhimurium, and aerobacter aerogenes. ...19724559725
enteric bacterial growth rates in river water.enteric bacteria, including stocked strains of pathogenic species and organisms naturally present in the stream, were capable of growth in a chemostat with autoclaved river water taken 750 m below a sewage outfall. maximal specific growth rates for all organisms occurred at 30 c, whereas culture generation times ranged between 33.3 and 116 hr. of the six laboratory strains of enteric species used, escherichia coli and enterobacter aerogenes grew at generation times of 34.5 and 33.3 hr, respectiv ...19724561100
erythritol as a selective substrate for the growth of serratia marcescens.serratia marcescens grew on a basal medium containing 0.5% erythritol as sole source of carbon for growth and energy. only an occasional strain of enterobacter aerogenes among several members of the family enterobacteriaceae were able to utilize erythritol.19724561106
inhibition of the -lactamases of escherichia coli and klebsiella aerogenes by semi-synthetic penicillins.1. a new automated micro-iodometric method is described for screening compounds for inhibitory action against beta-lactamase enzymes. 2. over 1000 semi-synthetic penicillins were tested for inhibitory activity against the beta-lactamase of escherichia coli b11 and 18 showed a fractional inhibition similar to or higher than that of methicillin. 3. the best inhibitors were alkoxy- and halogen-substituted phenyl-, naphthyl- or quinolyl-penicillins. 2-isopropoxy-1-naphthylpenicillin (brl 1437) was c ...19724561388
amino acid sequence studies with the tryptophan synthetase chain of aerobacter aerogenes. 19734571778
Displaying items 601 - 700 of 3180