Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| [inhibition of ribulosediphosphate carboxylase by adenosine triphosphate in autotrophic organisms]. | 1973 | 4198598 | |
| a comparison of the unfolding and dissociation of the large ribosome subunits from rhodopseudomonas spheroides n.c.i.b. 8253 and escherichia coli m.r.e. 600. | 1. the behaviour of the large ribosomal subunit from rhodopseudomonas spheroides (45s) has been compared with the 50s ribosome from escherichia coli m.r.e. 600 (and e. coli m.r.e. 162) during unfolding by removal of mg(2+) and detachment of ribosomal proteins by high univalent cation concentrations. the extent to which these processes are reversible with these ribosomes has also been examined. 2. the r. spheroides 45s ribosome unfolds relatively slowly but then gives rise directly to two ribonuc ... | 1973 | 4201305 |
| control of magnesium-protoporphyrin chelatase activity in rhodopseudomonas spheroides. role of light, oxygen, and electron and energy transfer. | 1. magnesium-protoporphyrin chelatase activity, previously shown in whole cells of rhodopseudomonas spheroides, could not be demonstrated in cell-free extracts prepared in different ways, although spheroplasts retained moderate activity. slight activity was detected also in whole cells of rhodospirillum rubrum. 2. the effects on the activity of the enzyme of inhibitors of electron and energy transfer were studied in whole cells of rps. spheroides. amytal, rotenone, azide and cyanide inhibited at ... | 1973 | 4202754 |
| comparison of phototrap complexes from chromatophores of rhodospirillum rubrum, rhodopseudomonas spheroides, and the r-26 mutant of rhodopseudomonas spheroides. | 1973 | 4204253 | |
| studies on ion transport in cells of photosynthetic bacteria. 3. the influence of uncouplers on hydrogen ion change. | 1973 | 4205460 | |
| [comparative study of nitrogen fixation in purple bacteria]. | 1973 | 4205730 | |
| the function and localization of ubiquinone in the nadh and succinate oxidase systems of rhodopseudomonas palustris. | 1973 | 4147456 | |
| energy transduction in photosynthetic bacteria. vi. respiratory sites of energy conservation in membranes from dark-grown cells of rhodopseudomonas capsulata. | 1973 | 4148029 | |
| purification and some properties of a protein factor required for light-dependent transhydrogenase in rhodopseudomonas spheroides. | 1973 | 4150340 | |
| isocitrate dehydrogenase from rhodopseudomonas spheroides: kinetic mechanism and further characterization. | 1973 | 4150342 | |
| are both fractions of rhodopseudomonas spheroides y ala synthetase isoenzymes? | 1973 | 4364574 | |
| anomalous ligand binding by a class of high spin c-type cytochromes. | 1973 | 4346352 | |
| water and cytochrome oxidation-reduction reactions. | 1973 | 4349915 | |
| primary events in the photosynthetic reaction centre from rhodopseudomonas spheroides strain r26: triplet and oxidized states of bacteriochlorophyll and the identification of the primary electron acceptor. | 1973 | 4350260 | |
| photochemical systems of rhodospirillum rubrum. light-induced reactions and biological functions of c-type cytochromes in relation to p-870. | 1973 | 4351207 | |
| genetic mutations affecting the respiratory electron-transport system of the photosynthetic bacterium rhodopseudomonas capsulata. | alternative energy-converting systems permit the nonsulfur purple photosynthetic bacterium rhodopseudomonas capsulata to grow either with light or (dark) respiration as the source of energy. respiratory mutants, unable to grow aerobically in darkness, can be readily isolated and the defective step(s) in their respiratory mechanisms can be identified by study of biochemical activities in membrane fragments derived from photosynthetically grown cells. such analysis of appropriate mutants and rever ... | 1973 | 4351385 |
| d-3-hydroxybutyrate dehydrogenase from rhodopseudomonas spheroides. kinetic mechanism from steady-state kinetics of the reaction catalysed by the enzyme in solution and covalently attached to diethylaminoethylcellulose. | 1. the reversible nad(+)-linked oxidation of d-3-hydroxybutyrate to acetoacetate in 0.1m-sodium pyrophosphate buffer, ph8.5, at 25.0 degrees c, catalysed by d-3-hydroxybutyrate dehydrogenase (d-3-hydroxybutyrate-nad(+) oxidoreductase, ec 1.1.1.30), was studied by initial-velocity, dead-end inhibition and product-inhibition analysis. 2. the reactions were carried out on (a) the soluble enzyme from rhodopseudomonas spheroides and (b) an insoluble derivative of this enzyme prepared by its covalent ... | 1973 | 4352835 |
| d-3-hydroxybutyrate dehydrogenase from rhodopseudomonas spheroides. kinetics of radioisotope redistribution at chemical equilibrium catalysed by the enzyme in solutions. | 1. the reversible nad(+)-linked oxidation of d-3-hydroxybutyrate to acetoacetate in 0.1m-sodium pyrophosphate buffer, ph8.5, at 25.0 degrees c, catalysed by d-3-hydroxybutyrate dehydrogenase (d-3-hydroxybutyrate-nad(+) oxidoreductase, ec 1.1.1.30), was studied kinetically at chemical equilibrium by monitoring radioisotope redistribution with sodium dl-hydroxy[3-(14)c]butyrate and [4-(3)h]nad(+)(labelled in the nicotinamide ring). 2. when all substrates are maintained at concentrations approachin ... | 1973 | 4352836 |
| oxidative phosphorylation and effects of aerobic conditions on rhodopseudomonas viridis. | 1973 | 4354792 | |
| pigment content and molar extinction coefficients of photochemical reaction centers from rhodopseudomonas spheroides. | 1973 | 4354794 | |
| light induced h+ uptake catalysed by photochemical reaction centres from rhodopseudomonas spheroides r26. | 1973 | 4355316 | |
| model discrimination and nonlinear parameter estimation in the analysis of the mechanism of action of beta-hydroxybutyrate dehydrogenase from rhodopseudomonas spheroides. | 1973 | 4356305 | |
| direct measurement of the midpoint potential of the primary electron acceptor in rhodopseudomonas spheroides in situ and in the isolated state: some relationships with ph and o-phenanthroline. | 1973 | 4356786 | |
| the kinetic and redox potentiometric resolution of the carotenoid shifts in rhodopseudomonas spheroides chromatophores: their relationship to electric field alterations in electron transport and energy coupling. | 1973 | 4358810 | |
| 5-aminolevulinic-acid synthetase of rhodopseudomonas spheroides y. kinetic mechanism and inhibition by atp. | 1973 | 4359141 | |
| enzymes of serine biosynthesis in rhodopseudomonas capsulata. | 1973 | 4361552 | |
| spectral properties of reaction center preparations from rhodopseudomonas spheroides. | 1973 | 4540710 | |
| kinetic and thermodynamic properties of membrane-bound cytochromes of aerobically and photosynthetically grown rhodopseudomonas spheroides. | 1973 | 4540949 | |
| extraction of oxidized bacteriochlorophyll from illuminated photosynthetic reaction center particles. | 1973 | 4540950 | |
| membrane proteins of rhodopseudomonas spheroides. 3. isolation, purification, and characterization of cell envelope proteins. | 1973 | 4541219 | |
| membrane proteins of rhodopseudomonas spheroides. v. additional chemical characterization of a pigment-lipid-associated protein isolated from chromatophores. | 1973 | 4541220 | |
| coupling between bacteriochlorophyll and membrane protein synthesis in rhodopseudomonas spheroides. | bacteriochlorophyll-containing membranes from rhodopseudomonas spheroides contain proteins with estimated molecular weights of 26,000, 22,000, 19,000, and 10,000-6,000 (proteins 9, 10, 11, and 15) when analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. proteins 9, 10, and 11 may be associated with the reaction center form of bacteriochlorophyll and protein 15, with the light-harvesting form. these proteins were not detected in membranes from nonpigmented wild-type cells grown ... | 1973 | 4541415 |
| the effect of redox potential on the coupling between rapid hydrogen-ion binding and electron transport in chromatophores from rhodopseudomonas spheroides. | 1973 | 4541536 | |
| biosynthesis of spheroidene and hydroxyspheroidene in rhodopseudomonas species: experiments with nicotine as inhibitor. | neurosporene replaces spheroidene and hydroxyspheroidene as the main carotenoid in rhodopseudomonas spheroides and rhodopseudomonas gelatinosa grown in the presence of nicotine. on removal of the nicotine, spheroidene and hydroxyspheroidene are formed at the expense of the accumulated neurosporene. this shows that nicotine inhibits introduction of the c-1 tertiary hydroxyl groups, and supports the postulated pathway neurosporene-->spheroidene-->hydroxyspheroidene. | 1973 | 4541982 |
| recent studies of carotenoid biosynthesis in bacteria. | 1973 | 4542022 | |
| -aminolevulinic acid dehydratase of rhodopseudomonas capsulata. | 1973 | 4542319 | |
| dependency on environmental redox potential of photophosphorylation in rhodopseudomonas spheroides. | 1973 | 4542403 | |
| polypyrroles formed from porphobilinogen and amines by uroporphyrinogen synthetase of rhodopseudomonas spheroides. | 1. uroporphyrinogen i synthetase of rhodopseudomonas spheroides was purified more than 200-fold from the soluble protein of broken bacterial cells. the enzyme had molecular weight 36000, an isoelectric point of 4.46 and migrated as a single active protein band on disc-gel electrophoresis at ph7.5 and 8.9. 2. the enzyme consumed porphobilinogen and formed uroporphyrinogen at ph8.2 without the accumulation of intermediates. in the presence of hydroxylamine, ammonia or methoxyamine the production o ... | 1973 | 4542566 |
| fluorescence excitation spectra and the relative numbers of pigment molecules in reaction centres from rhodopseudomonas spheroides. | 1973 | 4542616 | |
| mechanism and stereochemistry of the 5-aminolaevulinate synthetase reaction. | 1. two mechanisms for the biosynthesis of 5-aminolaevulinate from glycine and succinyl-coa (3-carboxypropionyl-coa) are considered. one of the mechanisms involves the retention of both the c-2 h atoms of glycine during the synthesis of 5-aminolaevulinate, whereas the other predicts the retention of only one of the c-2 h atoms of glycine. 2. highly purified 5-aminolaevulinate synthetase from rhodopseudomonas spheroides was used to show that the c-2 h atom of glycine with r configuration is specif ... | 1973 | 4543543 |
| [intracellular distribution of vitamin b 12 in a culture of rhodopseudomonas spheroides]. | 1973 | 4543823 | |
| 5-aminolevulinic-acid synthetase of rhodopseudomonas spheroides y. purification and some properties. | 1973 | 4543959 | |
| carotenoid biosynthesis in rhodopseudomonas spheroides. s-adenosylmethionine as the methylating agent in the biosynthesis of spheroidene and spheroidenone. | [methyl-(14)c]methionine and s-adenosyl[methyl-(14)c]methionine were incorporated into the methoxycarotenoids spheroidene and spheroidenone by rhodopseudomonas spheroides. the incorporation was greatly enhanced in the presence of lysozyme. on degradation of labelled spheroidene by hydriodic acid, the (14)c label was recovered in methyl iodide. degradation of spheroidenone by reduction and allylic dehydration and demethylation of the reduction product gave a mixture of unlabelled carotenoid hydro ... | 1973 | 4544066 |
| requirement of protein synthesis for maturation of ribosomal rna in rhodopseudomonas spheroides. | 1973 | 4544261 | |
| control of 5-aminolaevulinate synthetase activity in rhodopseudomonas spheroides. the involvement of sulphur metabolism. | 1. the ;initial' 5-aminolaevulinate synthetase activity, that is the activity observed immediately after cell disruption, in extracts prepared from unharvested semianaerobically grown rhodopseudomonas spheroides, was twice that observed under the same assay conditions in extracts prepared from harvested cells. 2. the effect of oxygenation of a culture on the ;maximum' aminolaevulinate synthetase activity, that is the activity observed 1h after disruption of harvested cells, is markedly influence ... | 1973 | 4544404 |
| control of 5-aminolaevulinate synthetase activity in rhodopseudomonas spheroides. the purification and properties of an endogenous activator of the enzyme. | 1. a low-molecular-weight activator of 5-aminolaevulinate synthetase was detected in extracts of rhodopseudomonas spheroides. the compound activates the enzyme extracted from oxygenated semi-anaerobically grown organisms by a factor of 6-8. 2. the activator was extensively purified, but owing to the exceedingly small amounts that could be extracted in the active form its structure was not determined. 3. the activator contains an acetylatable amino group; it is more stable at acid than at alkalin ... | 1973 | 4544405 |
| [tricarboxylic acid cycle enzymes in various species of phototrophic bacteria]. | 1973 | 4544539 | |
| purification and properties of uroporphyrinogen i synthetase from rhodopseudomonas spheroides. | 1973 | 4539746 | |
| on the determination of the transmembrane ph difference in bacterial chromatophores using 9-aminoacridine. | 1974 | 4434984 | |
| a simple method for extraction and partial purification of chlorophyll from plant material, using dioxane. | 1974 | 4436293 | |
| bioenergetic aspects of bacteriophage replication in the photosynthetic bacterium rhodopseudomonas capsulata. | 1974 | 4441075 | |
| the lipopolysaccharides (o-antigens) of rhodopseudomonas viridis. | 1974 | 4441220 | |
| electrochemical proton gradient and phosphate potential in bacterial chromatophores. | 1974 | 4442600 | |
| [effect of ammonium on hydrogen evolution and nitrogen fixation in rhodopseudomonas palustris]. | 1974 | 4453204 | |
| proceedings: electron transport control by energy-rich phosphates in rhodopseudomonas palustris. | 1974 | 4461531 | |
| genetic recombination in rhodopseudomonas capsulata. | a system for genetic exchange in rhodopseudomonas capsulata has been discovered. each genetic marker thus far examined can be transferred, and many strains of rps. capsulata can participate in genetic exchange. the mechanism of gene transfer seems unlike that of any previously described bacterial system, since genes can be transferred by cell-free filtrates, but the vector is resistant to deoxyribonuclease and has a sedimentation constant of about 70 s. | 1974 | 4522805 |
| sulfite reductase activity in extracts of various photosynthetic bacteria. | extracts of representative bacterial strains from the various families of photosynthetic prokaryotes are demonstrated to possess significant levels of sulfite reductase [ec 1.8.99.1; hydrogen-sulfide: (acceptor)oxidoreductase] activity with reduced methyl viologen as electron donor, but not nadph(2). the enzyme is localized primarily in the soluble fraction of the extracts, in contrast to adenylysulfate reductase [ec 1.8.99.2; amp, sulfite: (acceptor) oxidoreductase], which is bound normally in ... | 1974 | 4526215 |
| on reconstitution of bacterial photophosphorylation in vitro. | membranes active in oxidative phosphorylation but inactive in photophosphorylation were isolated from a carotenoid-less and bacteriochlorophyll-less mutant strain of rhodopseudomonas capsulata. these membranes were uncoupled and recombined with coupling factor from the same strain and with reaction centers from a photosynthetically active revertant strain. the reconstituted system was able to form atp from adp and inorganic phosphate under anaerobic conditions in the light. rates of 2 nmoles of ... | 1974 | 4530296 |
| resonance-raman evidence for anomalous heme structures in cytochrome c' from rhodopseudomonas palustris. | 1974 | 4366150 | |
| properties of the cytochrome a-like material developed in the photosynthetic bacterium rhodopseudomonas spheroides when grown aerobically. | 1974 | 4367961 | |
| preliminary crystallographic data for cytochrome c' of rhodopseudomonas palustris. | 1974 | 4369031 | |
| 6-o-methyl-d-glucosamine in lipopolysaccharides of rhodopseudomonas palustris strains. | 1974 | 4369456 | |
| a thermodynamic characterisation of the cytochromes of chromatophores from rhodopseudomonas capsulata. | 1974 | 4369739 | |
| in situ characterisation of photosynthetic electron transport in rhodopseudomonas capsulata. | 1974 | 4370093 | |
| on the question of the primary acceptor in bacterial photosynthesis:manganese substituting for iron in reaction centers of rhodopseudomonas spheroides r-26. | 1974 | 4371037 | |
| adaptation in rhodopseudomonas spheroides. | 1974 | 4371623 | |
| energy transduction in photosynthetic bacteria. the nature of cytochrome c oxidase in the respiratory chain of rhodopseudomonas capsulata. | 1974 | 4372102 | |
| the photo-oxidation of horse heart cytochrome c and native cytochrome c2 by reaction centres from rhodopseudomonas spheroides r26. | 1974 | 4373062 | |
| flash photolysis-electron spin resonance study of the effect of o-phenanthroline and temperature on the decay time of the esr signal b1 in reaction-center preparations and chromatophores of mutant and wild strains of rhodopseudomonas spheroides and rhodospirillum rubrum. | 1974 | 4373063 | |
| influence of iron deficiency on the cytochromes of rhodopseudomonas spheroides. | 1974 | 4373246 | |
| regulation of biosynthesis of aspartate family amino acids in the photosynthetic bacterium rhodopseudomonas palustris. | 1974 | 4374151 | |
| [initial pathways of pyruvate metabolism in phototrophic bacteria]. | 1974 | 4374642 | |
| different pathways for fructose and glucose utilization in rhodopseudomonas capsulata and demonstration of 1-phosphofructokinase in phototrophic bacteria. | 1974 | 4277436 | |
| histone analysis in volvox. | 1974 | 4277508 | |
| [inhibition of porphyrin biosynthesis in rhodopseudomonas spheroides under the effect of exogenous glucose and atp without modifications of the ala-synthetase and ala-dehydratase activities]. | 1974 | 4279739 | |
| [effect of an inhibitor isolated from rhodopseudomonas spheroides on porphyrin biosynthesis by rat liver homogenate]. | 1974 | 4282285 | |
| [growth in the dark and the nadh-oxidase activity of rhodopseudomonas palustris]. | 1974 | 4151335 | |
| reconstitution of light-dependent electron transport in membranes from a bacteriochlorophyll-less mutant of rhodopseudomonas spheroides. | 1974 | 4153913 | |
| [lipopolysaccharides from rhodospirillaceae: composition and taxonomic relevance]. | 1974 | 4154665 | |
| [nitrate utilization by purple bacteria]. | 1974 | 4155788 | |
| characterization of reaction centers from photosynthetic bacteria. ii. amino acid composition of the reaction center protein and its subunits in rhodopseudomonas spheroides r-26. | 1974 | 4206664 | |
| bacteriocinogeny in the athiorhodaceae. | 1974 | 4209388 | |
| modulation by fumarate of a pi-insensitive pyruvate kinase from rhodopseudomonas capsulata. | 1974 | 4216333 | |
| [ribulose diphosphate and phosphopyruvate carboxylase activity in phototropic bacteria]. | 1974 | 4217882 | |
| characterization of reaction centers from photosynthetic bacteria. i. subunit structure of the protein mediating the primary photochemistry in rhodopseudomonas spheroides r-26. | 1974 | 4132124 | |
| amino acid sequence at the haem region of cytochrome c2 from rhodopseudomonas palustris, strain x. | 1974 | 4136519 | |
| citrate lyase from rhodopseudomonas gelatinosa: purification, electron microscopy and subunit structure. | 1974 | 4141604 | |
| bacteriophages of rhodopseudomonas spheroides: isolation and characterization of a rhodopseudomonas spheroides bacteriophage. | a dna-containing bacteriophage, designated rs1, infecting rhodopseudomonas spheroides 2.4.1, has been isolated from sewage. the buoyant density of rs1 in cscl equilibrium centrifugation is 1.50 g/cm(3), and the buoyant density of rs1 dna is 1.706. the phage possesses a polyhedral head, approximately 65 nm in diameter, and a tail 60 nm long. when grown on aerobic cells, rs1 has a latent period of 120 min and an average burst size of 20. when grown on anaerobic cells, rs1 has a latent period of 15 ... | 1974 | 4545531 |
| h+ uptake by chromatophores from rhodopseudomonas spheroides. the relation between rapid h+ uptake and the h+ pump. | 1974 | 4546206 | |
| a comparison of beauvericin, enniatin and valinomycin as calcium transporting agents in liposomes and chromatophores. | 1974 | 4546705 | |
| comparative studies on two reaction center preparations from rhodopseudomonas speheroides y. | 1974 | 4546760 | |
| effects of extraction and replacement of ubiquinone upon the photochemical activity of reaction centers and chromatophores from rhodopseudomonas spheriodes. | 1974 | 4547199 | |
| function of membrane proteins coupled to bacteriochlorophyll synthesis. studies with wild type and mutant strains of rhodopseudomonas spheroides. | 1974 | 4547213 | |
| kinetics of photosynthetic membrane protein assembly in rhodopseudomonas spheroides. | 1974 | 4547239 | |
| the state of chlorophyll and carotenoid in vivo. ii. a linear dichroism study of pigment orientation in photosynthetic bacteria. | 1974 | 4547333 | |
| primary events in photosynthesis: picosecond kinetics of carotenoid bandshifts in rhodopseudomonas spheroides chromatophores. | 1974 | 4547716 | |
| isolation and characterization of a temperate bacteriophage specific for rhodopseudomonas spheroides. | the isolation of a temperature phage specific for the photosynthetic bacterium rhodopseudomonas spheroides is reported. this phage, rphi-1, establishes a state of lysogeny and can be induced from the prophage state by exposure to mitomycin c or uv irradiation. mutants of rphi-1 which grow on a standard laboratory strain (2.4.1) of rhodopseudomonas spheroides were isolated. although the original rphi-1 isolated was chloroform sensitive, the mutant which plates on strain 2.4.1 is chloroform resist ... | 1974 | 4547800 |
| control of delta-aminolevulinate synthetase activity in rhodopseudomonas spheroides. iii. partial purification of the fraction i activating enzyme and the occurrence of two forms of fraction ii. | 1974 | 4548063 | |
| small angle x-ray scattering of the thylakoid membranes of rhodopseudomonas speroides in aqueous suspensions. | the diffraction patterns of particles which have the shape of hollow spheres, i.e. vesicles, can be satisfactorily analyzed by means of a new formula of weick (1974). this formula is used for the small angle x-ray scattering analysis of aqueous suspensions of thylakoids of rhodopseudomonas spheroides. some essential results are: (a) the membrane has a rather asymmetric structure with one layer of low electron density at its inner side and two layers of high electron density near the outer surfac ... | 1974 | 4545071 |
| topology and growth of the intracytoplasmic membrane system of rhodopseudomonas spheroides: protein, chlorophyll, and phospholipid insertion into steady-state anaerobic cells. | an equilibrium density gradient centrifugation study involving the separation of "old" and "new" membranes has been developed to determine the manner in which protein, lipid, and chlorophyll are incorporated into growing intracytoplasmic membranes (chromatophores) of rhodopseudomonas spheroides. chromatophores derived from cells grown in an h(2)o-medium had a density of 1.175 to 1.180 g/cm(3) and were readily separable from chromatophores having a density of 1.220 to 1.230 isolated from cells gr ... | 1974 | 4545399 |