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reaction center bacteriochlorophyll triplet states: redox potential dependence and kinetics. 19744370313
[initial pathways of pyruvate metabolism in phototrophic bacteria]. 19744374642
the covalently bound flavin of chromatium cytochrome c552. 1. evidence for cysteine thiohemiacetal at the 8 alpha position. 19744375038
photosynthetic reaction centers and primary photochemical reactions. 19744376245
mössbauer effect in the 'super-reduced' form of the high-potential iron-sulphur protein from chromatium.mössbauer-effect studies of the super-reduced form of chromatium high-potential iron-sulphur protein indicate that the iron atoms are in a similar valency state to those in reduced ferredoxin from clostridium pasteurianum, with possibly some inequivalence between the iron atoms within the four-iron centre. mössbauer spectroscopy also shows magnetic differences between the four-iron centres in the two proteins.19744376953
pyridine nucleotide transhydrogenase from chromatium. 19664380404
crystalline ferredoxin from the photosynthetic bacterium chromatium. 19664381411
light-induced electron transefer in chromatium strain d. 3. photophosphorylation by chromatium chromatophores. 19684384457
ferredoxin-dependent reduction of nicotinamide-adenine dinucleotides with hydrogen gas by subcellular preparations from the photosynthetic bacterium, chromatium. 19684387275
the stoicheiometry of electron transfer by bacterial and plant ferredoxins.1. the number of electrons carried by ferredoxins from spinach, the blue-green alga anacystis nidulans, the anaerobic bacterium clostridium welchii and the photosynthetic bacterium chromatium was determined. 2. ferredoxins were reduced by illuminated chloroplasts, and the stoicheiometry of the reoxidation in the dark of the ferredoxins by nadp and benzyl viologen was measured. 3. spinach and a. nidulans ferredoxins were found to be one-electron carriers, and cl. welchii and chromatium ferredoxin ...19684387387
[study of reductive amination and transamination in chromatium minutissimum]. 19694390548
role of ferredoxin in photosynthesis. 19694391254
multiplicity of electron transport reactions in bacterial photosynthesis. 19704394952
photosynthesis: the electron transport system of green plants. 19714399259
the mechanism of ammonia assimilation in nitrogen fixing bacteria. 19714399578
recent advances in the chemistry of covalently bound flavin coenzymes. 19724405080
amino acid sequence of ferredoxin from a photosynthetic green bacterium, chlorobium limicola. 19744407619
letter: spectroscopic and magnetic characterization of high potential iron-sulfur protein from chromatium. 19744414400
comparison of oxidation-reduction site geometries in oxidized and reduced chromatium high potential iron protein and oxidized peptococcus aerogenes ferredoxin. 19744417854
methylrhodibalamin and 5'-deoxyadenosylrhodibalamin, the rhodium analogues of methylcobalamin and cobalamin coenzyme. 19744425457
isolation and characterization of chromatium vinosum membranes. 19744447429
the covalently bound flavin of chromatium cytochrome c552. 2. sequence of flavin peptides and flavin-tyrosine interaction. 19744448180
nature of photochemical reactions in chromatophores of chromatium d. ii. quantum yield of photooxidation of cytochromes in chromatium chromatophores. 19744451654
[isolation of pigment-lipoprotein complexes from purple photosynthesizing bacteria by the method of preparative polyacrylamide gel electrophoresis]. 19744453209
determination of the applied oxidation-reduction potential required for substrate reduction by chromatium nitrogenase. 19744455254
mössbauer effect in the high-potential iron-sulphur protein from chromatium. evidence for the state of the iron atoms.1. the previous mössbauer work on chromatium high-potential iron-sulphur protein by moss et al. (1968) and evans et al. (1970) was extended to high applied magnetic fields. 2. measurements of the reduced protein confirm that it is non-magnetic. 3. spectra of the oxidized protein in applied magnetic fields clearly indicate that some iron atoms have a positive hyperfine field, which is evidence for antiferromagnetic coupling. 4. the spectra can be interpreted in terms of two types of iron atom wit ...19744463936
structure and properties of a synthetic analogue of bacterial iron--sulfur proteins.the compound (et(4)n)(2)[fe(4)s(4)(sch(2)ph)(4)] has been prepared and its structure determined by x-ray diffraction. the fe(4)s(4) core of the anion possesses a configuration of d(2d) symmetry that is closely related to the fe(4)s(4) active-site structures of the high-potential iron protein from chromatium and the ferredoxin from micrococcus aerogenes. electronic properties of the tetrameric anion have been partially characterized by measurement of proton magnetic resonance, mössbauer, photoele ...19724506765
structure of the iron-sulfur cluster in the chromatius iron protein at 2.25 angstrom resolution. 19724508152
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 ...19744526215
energy transfer in bacterial photosynthesis. i. light intensity dependences of fluorescence lifetimes. 19724538075
esterifying alcohols in the chlorophylls of purple photosynthetic bacteria. a new chlorophyll, bacteriochlorophyll (gg), all-trans-geranylgeranyl bacteriochlorophyllide a. 19724538632
energy transfer to the reaction centres in bacterial photosynthesis. ii. bacteriochlorophyll fluorescence lifetimes and quantum yields for some purple bacteria. 19724539860
[tricarboxylic acid cycle enzymes in various species of phototrophic bacteria]. 19734544539
the reductive enzymatic cleavage of thiosulfate. methods and appliction. 19724552952
membranes of photosynthetic bacteria. 19724557023
[higher structure and function of carboxydismutase (author's transl)]. 19734587673
distribution of purple photosynthetic bacteria in wetland and woodland habitats of central and northern minnesota.enrichment cultures for purple nonsulfur and sulfur photosynthetic bacteria were prepared from soil samples collected in central and northern minnesota. the purple nonsulfur bacteria were found in most wetland soils sampled but were uncommon in woodland and grassland soils. the ph range of the soils in which these bacteria occurred was 3.8 to 7.8, and the oxidation-reduction potential (e(h)) range was +510 to -65 mv. soils with a ph below 5.0 or an e(h) above +370 mv had few purple nonsulfur bac ...19744590487
mössbauer spectroscopy of the nitrogenase proteins from klebsiella pneumoniae. structural assignments and mechanistic conclusions.the mo-fe protein and the fe protein which together constitute the nitrogenase of klebsiella pneumoniae were prepared from bacteria grown in (57)fe-enriched medium. the mössbauer spectrum of the mo-fe protein, as isolated in the presence of na(2)s(2)o(4), showed that the protein contained three iron species, called m4, m5 and m6. the area of the spectrum associated with species m4, with delta=0.65mm/s and deltae=3.05mm/s at 4.2 degrees k, corresponded to two iron atoms/molecule of protein and it ...19744596139
iron-sulfur proteins: structure and function. 19734599384
d-ribulose-1, 5-diphosphate carboxylase and the evolution of autotrophy. 19744613398
[natural electron donors in the process of nitrogen fixation]. 19744619170
further studies on ribulose 1,5-diphosphate carboxylase from chromatium strain d. 19724622353
effect of ferredoxin on bacterial photophosphorylation. 19724622736
ribulose diphosphate carboxylase from autotrophic microorganisms.thiobacillus denitrificans was grown anaerobically with nitrate as an acceptor in both sterile and nonsterile media. ribulose diphosphate carboxylase was stable throughout the exponential growth phase and declined slowly only after cells reached the stationary phase. reversible inactivation of the carboxylase occurred in extracts as a result of bicarbonate omission. the enzyme was purified 32-fold with excellent recovery of a preparation which was 50 to 60% pure by the criterion of polyacrylamid ...19724623310
regulation of ribulose-1,5-diphosphate carboxylase by 6-phospho-d-gluconate. 19724626611
fluorescence of bacteriochlorophyll as related to the photochemistry of chromatophores of photosynthetic bacteria. 19724627083
temperature dependence of absorption and fluorescence spectra of bacteriochlorophylls in vivo and in vitro. 19724627554
[density characteristics of ribosomes of photosynthesizing bacteria and plants]. 19724628850
[formation of non-conjugated pteridines by phototrophic bacteria in relation to growth conditions]. 19724630047
comparative study of the circular dichroism spectra of reaction centers from several photosynthetic bacteria. 19734630407
anion radical of bacteriochlorophyll. 19734632875
[ribosomes of photosynthesizing bacteria]. 19724634392
[light-induced changes in oxidation-reduction potential of chromatium chromatophores in the presence of p-benzoquinone]. 19724643729
photosynthetic characteristics of purple sulfur bacterium grown under different light intensities. 19724649738
effect of detergents on photoinduced changes of absorption of chromatium minutissimum chromatophores. 19724660964
contact shifts and magnetic susceptibilities in iron-sulfur proteins as determined from nuclear magnetic resonance spectra. 19724670195
nucleotide pools and adenylate energy charge in balanced and unbalanced growth of chromatium.adenine nucleotide pools and their energy charge were measured during balanced and unbalanced growth of photoheterotrophic chromatium cultures. the methods used involved rapid sampling, accurate to within 1 s, from isotopically labeled cultures followed by chromatographic separation of individual nucleotides. during balanced growth, both energy charge and adenosine triphosphate (atp) concentrations, whether expressed as a function of cell protein or intracellular water, were slightly higher in l ...19734698217
some effects of o-phenanthroline on electron transport in chromatophores from photosynthetic bacteria. 19734705131
light-induced absorption changes in chromatium subchromatophore particles exhaustively extracted with non-polar solvents. 19734705132
redistribution of electric charge accompanying photosynthetic electron transport in chromatium. 19734705448
catalytic role of subunit a in ribulose-1,5-diphosphate carboxylase from chromatium strain d. 19734716958
[evidence for the existence of a bacteriochlorophyll regeneration process]. 19734721712
utilization of amino acids by chromatium sp. strain d. 19734732225
the complete amino acid sequence of chromatium high potential iron sulfur protein. 19734745771
oxidative formation of phosphoglycolate from ribulose-1,5-diphosphate catalysed by chromatium ribulose-1,5-diphosphate carboxylase. 19734748814
[characteristics of proteins (number of chains and molecular weights) of pigment-lipoprotein complexes from chromatium]. 19734748894
utilization of amino acids by chromatium sp. strain d. 19734775033
distribution of the isopropylmalate pathway to leucine among diverse bacteria.alpha-isopropylmalate synthase and beta-isopropylmalate dehydrogenase activities were detected in extracts of the following organisms: chromatium d, rhodopseudomonas spheroides, hydrogenomonas h16, pseudomonas aeruginosa, pseudomonas fluorescens, vibrio extorquens, rhizobium japonicum, alcaligenes viscolactis, escherichia coli b, proteus vulgaris, aerobacter aerogenes, salmonella typhimurium, micrococcus sp., micrococcus lysodeikticus, bacillus polymyxa, bacillus subtilis, and nocardia opaca. th ...19744829932
[alterations in iron compounds during the evolution of carbon dioxide assimilation]. 19744831013
determination of oxidation-reduction potentials by spectropolarimetric titration: application to several iron-sulfur proteins. 19744831335
[occurrence of phytol and geranylgeraniol in the bacteriochlorophylls of red and green sulfur bacteria (author's transl)]. 19744836255
two-angstrom crystal structure of oxidized chromatium high potential iron protein. 19744855287
cobalt-free corrinoids as vitamin b 12 antagonists. 19684873648
[energy transfer in solid-state and membrane systems in photosynthesis]. 19684883341
growth measurements of chromatium cultures. 19684886553
macromolecular subunits in the walls of marine photosynthetic bacteria.electron micrographs of sectioned and frozen-etched marine species of chromatium revealed that at least two different patterns of macromolecular subunits are present on the cell wall.19704913979
occurrence of purple sulfur bacteria in a sewage treatment lagoon.the ecology of purple sulfur bacteria in a sewage oxidation lagoon was investigated. chemical changes in the lagoon were investigated by monitoring biochemical oxygen demand (bod(5)), sulfide, sulfate, phosphate, total carbohydrates, volatile acids, alkalinity, and ph. lagoon water temperatures were observed daily. microbial ecological relationships were deduced by enumerating coliforms, total bacteria other than anaerobes [tryptone glucose extract (tge) agar], methane formers such as methanobac ...19704917194
variable cellular composition of chromatium in browing cultures. 19704921934
bacterial cytochromes. ii. functional aspects. 19704927136
surface structure of chromatium okenii and chromatium weissei.the outermost structured layer of both chromatium weissei and c. okenii is composed of a hexagonal array of hollow cone-shaped subunits approximately 25 nm in length and 13 nm in diameter.19714929874
the effect of glutaraldehyde fixation on the primary photochemical processes in bacterial photosynthesis. 19714940040
motility tracks: technique for quantitative study of bacterial movement.a method for recording movements of bacteria in time and space on a single photograph is described. quantitative information on the behavior of various motile organisms may easily be obtained for comparative studies. the method possesses certain advantages over cinematography, and illustrations of applications of the technique are presented.19694977222
characterization of cytochrome c from nitrobacter agilis. 19694984114
the evolution of photosynthesis. 19704985766
major paraffin constituents of microbial cells with particular references to chromatium sp. 19704987617
studies in valine biosynthesis. ix. the enzymes in photosynthetic and autotrophic bacteria. 19715003668
[photophosphorylating activity of fragments obtained following rupture of chromatium minutissimum chromatophores by ultrasound]. 19725017923
observations on light-induced oxidation reactions in the electron transport system of chromatium.light-induced cytochrome oxidations in chromatium subchromatophore particles were studied in detail. these reactions were found to be dependent not only on redox potential, but also on the efficiency of coupling of the redox buffer electrons to the cytochrome system. light-induced oxidation of the high potential cytochrome (c-556) was dependent on (a) the availability of reduced cytochrome and (b) the rate of light-induced oxidation (as determined by light intensity) vs. rate of cytochrome rered ...19725037342
fast changes of enthalpy and volume on flash excitation of chromatium chromatophores. 19725042840
[metabolic heterogeneity of bacteriochlorophyll]. 19725044176
[marine phototrophic sulfur bacteria. assimilation of organic and mineral substances, and influnce of the nacl content of the medium upon growth]. 19725084313
isolation and characteristics of chromatium vinosum ribosomes. 19725086736
[effect of light and some inhibitors on oxygen consumption by photosynthesizing bacteria]. 19715096607
molecular weights of some cytochromes cc'. 19715103659
iron-containing proteins in chromatium. i. solubilization of membrane-bound cytochrome. 19715117582
continuous culture of thiorhodaceae. sulfide and sulfur limited growth of chromatium vinosum. 19715126079
iron-containing proteins in chromatium. ii. purification and properties of cholate-solubilized cytochrome complex. 19715126501
thermodynamics of the primary and secondary photochemical reactions in chromatium. 19715126502
nucleotide pools in growing chromatium strain d.the growth rate of chromatium at limiting light intensities is not regulated by either the ratio or the concentration of nucleoside phosphates, although transient changes in these parameters may affect the activities of biosynthetic enzymes.19715128339
photosynthetic reaction center transients, p435 and p424, in chromatium d. 19715133535
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