1
|
Hou Y, Vasileva EA, Carne A, McConnell M, El-Din A Bekhit A, Mishchenko NP. Naphthoquinones of the spinochrome class: occurrence, isolation, biosynthesis and biomedical applications. RSC Adv 2018; 8:32637-32650. [PMID: 35547692 PMCID: PMC9086473 DOI: 10.1039/c8ra04777d] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/17/2018] [Indexed: 01/17/2023] Open
Abstract
Quinones are widespread in nature and have been found in plants, fungi and bacteria, as well as in members of the animal kingdom. More than forty closely related naphthoquinones have been found in echinoderms, mainly in sea urchins but occasionally in brittle stars, sea stars and starfish. This review aims to examine controversial issues on the chemistry, biosynthesis, functions, stability and application aspects of the spinochrome class, a prominent group of secondary metabolites found in sea urchins. The emphasis of this review is on the isolation and structure of these compounds, together with evaluation of their relevant biological activities, source organisms, the location of origin and methods used for isolation and identification. In addition, the studies of their biosynthesis and ecological function, stability and chemical synthesis have been highlighted. This review aims to establish a focus for future spinochrome research and its potential for benefiting human health and well-being.
Collapse
Affiliation(s)
- Yakun Hou
- Department of Food Science, University of Otago PO Box 56 Dunedin 9054 New Zealand
| | - Elena A Vasileva
- Laboratory of the Chemistry of Natural Quinonoid Compounds, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences Prospect 100 let Vladivostoku 159/2 690022 Vladivostok Russia
| | - Alan Carne
- Department of Biochemistry, University of Otago PO Box 56 Dunedin 9054 New Zealand
| | - Michelle McConnell
- Department of Microbiology and Immunology, University of Otago PO Box 56 Dunedin 9054 New Zealand
| | - Alaa El-Din A Bekhit
- Department of Food Science, University of Otago PO Box 56 Dunedin 9054 New Zealand
| | - Natalia P Mishchenko
- Laboratory of the Chemistry of Natural Quinonoid Compounds, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences Prospect 100 let Vladivostoku 159/2 690022 Vladivostok Russia
| |
Collapse
|
2
|
van Beilen JWA, Hellingwerf KJ. All Three Endogenous Quinone Species of Escherichia coli Are Involved in Controlling the Activity of the Aerobic/Anaerobic Response Regulator ArcA. Front Microbiol 2016; 7:1339. [PMID: 27656164 PMCID: PMC5013052 DOI: 10.3389/fmicb.2016.01339] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 08/15/2016] [Indexed: 12/31/2022] Open
Abstract
The enteron Escherichia coli is equipped with a branched electron transfer chain that mediates chemiosmotic electron transfer, that drives ATP synthesis. The components of this electron transfer chain couple the oxidation of available electron donors from cellular metabolism (e.g., NADH, succinate, lactate, formate, etc.) to the reduction of electron acceptors like oxygen, nitrate, fumarate, di-methyl-sulfoxide, etc. Three different quinones, i.e., ubiquinone, demethyl-menaquinone and menaquinone, couple the transfer of electrons between the dehydrogenases and reductases/oxidases that constitute this electron transfer chain, whereas, the two-component regulation system ArcB/A regulates gene expression, to allow the organism to adapt itself to the ambient conditions of available electron donors and acceptors. Here, we report that E. coli can grow and adjust well to transitions in the availability of oxygen, with any of the three quinones as its single quinone. In all three ‘single-quinone’ E. coli strains transitions in the activity of ArcB are observed, as evidenced by changes in the level of phosphorylation of the response regulator ArcA, upon depletion/readmission of oxygen. These results lead us to conclude that all quinol species of E. coli can reduce (i.e., activate) the sensor ArcB and all three quinones oxidize (i.e., de-activate) it. These results also confirm our earlier conclusion that demethyl-menaquinone can function in aerobic respiration.
Collapse
Affiliation(s)
- Johan W A van Beilen
- Department of Molecular Microbial Physiology, Swammerdam Institute for Life Sciences, University of Amsterdam Amsterdam, Netherlands
| | - Klaas J Hellingwerf
- Department of Molecular Microbial Physiology, Swammerdam Institute for Life Sciences, University of Amsterdam Amsterdam, Netherlands
| |
Collapse
|
3
|
Nohl H, Jordan W, Youngman RJ. Quinones in Biology: Functions in electron transfer and oxygen activation. ACTA ACUST UNITED AC 1986. [DOI: 10.1016/s8755-9668(86)80030-8] [Citation(s) in RCA: 102] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
4
|
Holländer R. The dependence on quinone specificity of terminal electron transport of bacteria. Curr Microbiol 1981. [DOI: 10.1007/bf01642390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
5
|
Thauer RK, Jungermann K, Decker K. Energy conservation in chemotrophic anaerobic bacteria. BACTERIOLOGICAL REVIEWS 1977; 41:100-80. [PMID: 860983 PMCID: PMC413997 DOI: 10.1128/br.41.1.100-180.1977] [Citation(s) in RCA: 1326] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
6
|
Holländer R, Wolf G, Mannheim W. Lipoquinones of some bacteria and mycoplasmas, with considerations on their functional significance. Antonie Van Leeuwenhoek 1977; 43:177-85. [PMID: 413478 DOI: 10.1007/bf00395672] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In a comparative study the lipoquinones of some chemoorganotrophic, facultatively aerobic bacteria, and representative Acholeplasma, Mycoplasma, Spiroplasma, and Thermoplasma strains were investigated. The quinones were partly purified by preparative thin layer chromatography of lipid extracts, and characterized by their difference spectra (reduced minus oxidized) and Rf values. Respiring bacteria expectedly contained benzoquinones and/or naphthoquinones in micromolar concentrations whereas some aerotolerant, cytochrome-less, gram-positive bacteria were found to contain menaquinones in nanomolar concentrations, or even no quinones; only Streptococcus faecalis, an organism supposed to use a rudimentary, flavin-terminated respiratory chain system produced desmethyl menaquinone in amounts ranging between "high" and "low" quinone contents. Among the mycoplasmas investigated, only Thermoplasma acidophilum was found to be capable of synthesizing quinones (MK-7) in the micromolar order of magnitude indicating a respiratory electron transport system. The presence of energetically useful respiratory chain systems in Acholeplasma, Mycoplasma, and Spiroplasma is questioned since these organisms contain quinones (MK-4) in nanomolar concentrations, or no quinones, depending on the presence of exogeneous MK-6 in the growth medium. The possible metabolite role of menaquinones present in "low" amounts, as well as the role of NADH oxidase systems more or less tightly bound to the cytoplasmic membrane with the mycoplasmas deserves further investigation.
Collapse
|
7
|
Sasarman A, Purvis P, Portelance V. Role of menaquinone in nitrate respiration in Staphylococcus aureus. J Bacteriol 1974; 117:911-3. [PMID: 4811551 PMCID: PMC285591 DOI: 10.1128/jb.117.2.911-913.1974] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Two menaquinone-deficient and one aromatic-deficient mutants of Staphylococcus aureus were unable to reduce nitrate to nitrite. Reinitiation of menaquinone synthesis in the aromatic-deficient mutant by growing it with shikimic acid restored its nitrate respiratory activity. The results clearly demonstrate a role for menaquinone in nitrate respiration in Staphylococcus aureus.
Collapse
|
8
|
Farrand SK, Taber HW. Changes in menaquinone concentration during growth and early sporulation in Bacillus subtilis. J Bacteriol 1974; 117:324-6. [PMID: 4202999 PMCID: PMC246562 DOI: 10.1128/jb.117.1.324-326.1974] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In two strains of Bacillus subtilis, menaquinone-7 has been shown to reach maximal cellular concentrations during early stationary phase. These concentration changes closely parallel the previously reported concentration changes in the cytochromes.
Collapse
|
9
|
Knook DL, Planta RJ. The function of ubiquinone in Klebsiella aerogenes. ARCHIV FUR MIKROBIOLOGIE 1973; 93:13-22. [PMID: 4148761 DOI: 10.1007/bf00666077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
10
|
Abstract
Several aspects of the respiratory physiology of a mutant of Bacillus subtilis deficient in menaquinone-7 (MK-7) and in cytochromes were investigated. The mutant, an aromatic amino acid auxotroph blocked at dehydroshikimate reductase, is unable to synthesize MK-7 unless grown in the presence of the common aromatic amino acid intermediate, shikimate. The inability to synthesize MK-7 prevents the mutant from expressing the normal postexponentialphase cytochrome phenotype. When grown in the presence of shikimate, normal levels of these electron transport components are formed. It was found that the intracellular concentration of MK-7 could be predictably regulated by growing the cells with known concentrations of exogenous shikimate. When the mutant was grown under conditions where MK-7 biosynthesis was severely limited, there was a decrease in oxygen uptake and in membrane-associated reduced nicotinamide adenine dinucleotide (NADH) oxidase and succinate oxidase activity. NADH oxidase, but not succinoxidase, could be restored in membrane preparations by the addition of menadione to the reaction mixture. Reduced-minus-oxidized cytochrome difference spectra indicate that an MK-7 deficiency limits electron flow through the cytochrome chain. Furthermore, oxidation-reduction patterns suggest that MK-7 functions between the primary dehydrogenases and the cytochromes. Although the mutant is asporogenous when grown under conditions where MK-7 biosynthesis is limited, the inability to sporulate does not appear to result from lesions in the electron transport system.
Collapse
|
11
|
Ray PH, Lillich TT, White DC. Consequences of glycerol deprivation on the synthesis of membrane components in a glycerol auxotroph of Staphylococcus aureus. J Bacteriol 1972; 112:413-20. [PMID: 5079070 PMCID: PMC251426 DOI: 10.1128/jb.112.1.413-420.1972] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
In a glycerol auxotroph of Staphylococcus aureus, the deprivation of glycerol affected the formation of certain membrane components. (i) There was synthesis of fatty acids at the predeprivation rate even though the fatty acids synthesized accumulated as free fatty acids rather than as esterified fatty acids; (ii) there was a complete cessation of phospholipid and vitamin K isoprenologue biosynthesis; (iii) there was conservation of the glycerol esters of the complex phospholipids and glucolipids; (iv) there was an immediate decrease in the rate of synthesis of monoglucoslydiglyceride (30%) and diglucosyldiglyceride (60%); (v) there was a 50% decrease in the rate of synthesis of the polar and nonpolar carotenoids; (vi) there was synthesis of protoheme, heme a, and nonspecific membrane protein at the predeprivation rate; and (vii) there was an abrupt cessation in the formation of new, functional glycine transport activity.
Collapse
|
12
|
Samuel O, Azerad R. [C-methylation of desmethylmenaquinones. II. Specificity of the methylation enzyme system of Mycobacterium phlei towards the quinone substrate]. Biochimie 1972; 54:305-17. [PMID: 4640196 DOI: 10.1016/s0300-9084(72)80209-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
13
|
Kröger A, Klingenberg M. Quinones and nicotinamide nucleotides associated with electron transfer. VITAMINS AND HORMONES 1971; 28:533-74. [PMID: 4401045 DOI: 10.1016/s0083-6729(08)60910-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
14
|
|
15
|
Faust PJ, Vandemark PJ. Phosphorylation coupled to NADH oxidation with fumarate in Streptococcus faecalis 10Cl. Arch Biochem Biophys 1970; 137:392-8. [PMID: 4314727 DOI: 10.1016/0003-9861(70)90454-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
16
|
Sinclair PR, White DC. Effect of nitrate, fumarate, and oxygen on the formation of the membrane-bound electron transport system of Haemophilus parainfluenzae. J Bacteriol 1970; 101:365-72. [PMID: 4313051 PMCID: PMC284916 DOI: 10.1128/jb.101.2.365-372.1970] [Citation(s) in RCA: 43] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The composition of the membrane-bound electron transport system of Haemophilus parainfluenzae underwent modification in response to the terminal electron acceptor in the growth medium. H. parainfluenzae was able to grow with O(2), nitrate, fumarate, pyruvate, and substrate amounts of nicotinamide adenine dinucleotide (NAD) as electron acceptors. When O(2) served as the electron acceptor and its concentration was lowered below 20 mum, the bacteria formed more cytochromes b, c, a(1), a(2), and o than were present in the cells grown at 150 to 200 mum O(2). Nitrate and nitrite reductase activities also appeared during growth at the low O(2) concentrations in the absence of added nitrate. Cytochrome levels in cells grown anaerobically with fumarate, pyruvate, or NAD as terminal acceptors were similar to those formed in cells grown at low O(2) concentrations. Cells grown with nitrate had higher levels of cytochromes c, b, and o, and of nitrate and nitrite reductases, than did cells grown with the other acceptors. The formation of cytochrome oxidase a(2) was repressed by the presence of nitrate in the growth medium. The critical O(2) concentration (the O(2) concentration at which the rate of O(2) uptake becomes demonstrably dependent on the O(2) concentration) was about 100 mum in cells grown with nitrate and about 15 mum in cells grown with the other acceptors. A mutant of H. parainfluenzae was found to make about 10% as much cytochrome c as the wild type, and its formation of cytochrome a(2) was not repressed by nitrate. The critical O(2) concentration of the mutant was high when it was grown with nitrate, suggesting that the high levels of cytochrome c and the absence of cytochrome a(2) from the wild type are not responsible for the high critical O(2) concentration. The modifications of the respiratory system induced by changing the terminal electron acceptor were inhibited by the presence of chloramphenicol, which suggests that protein synthesis is involved.
Collapse
|
17
|
Hammond RK, White DC. Separation of vitamin K2 isoprenologues by reversed-phase thin-layer chromatography. J Chromatogr A 1969; 45:446-52. [PMID: 5364995 DOI: 10.1016/s0021-9673(01)86242-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
18
|
Kröger A, Dadák V. On the role of quinones in bacterial electron transport. The respiratory system of Bacillus megaterium. EUROPEAN JOURNAL OF BIOCHEMISTRY 1969; 11:328-40. [PMID: 4311782 DOI: 10.1111/j.1432-1033.1969.tb00776.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
19
|
|
20
|
|
21
|
White DC, Tucker AN. Phospholipid metabolism during changes in the proportions of membrane-bound respiratory pigments in Haemophilus parainfluenzae. J Bacteriol 1969; 97:199-209. [PMID: 5764329 PMCID: PMC249577 DOI: 10.1128/jb.97.1.199-209.1969] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
After a transition from high to low oxygen tension, there was a twofold to 50-fold increase in the content of membrane-bound respiratory pigments of Haemophilus parainfluenzae, and there were concurrent changes in the metabolism of the membrane phospholipids: (i) a twofold decrease in the rate of turnover of the phosphate in all the phospholipids; (ii) a shift from simple one-phase, linear incorporation of phosphate into phospholipids to a complex biphasic incorporation of phosphate into phospholipids; and (iii) an increase in the total phospholipids with a slight increase in the proportion of phosphatidylglycerol (PG) and a slight decrease in the proportion of phosphatidylethanolamine (PE). Changes in the rates of incorporation of phosphate into the phospholipids occurred without a change in the rate of bacterial growth. When the compensatory adjustment of the proportions of the respiratory pigments reached a steady state, the total phospholipid, the rate of incorporation of phosphate into phospholipids, and the proportion of PG fell. At steady-state proportions of cytochromes, the proportion of PE and the rate of turnover of the phosphate in the phospholipids increased. All through an incorporation experiment of 1.5 divisions, the specific activity of the phosphate of PG was twice that of phosphatidic acid (PA). The phosphate of PG turned over 1.2 to 1.5 times more rapidly than the phosphate of PA in cells with high and low cytochrome levels. If the PA was an accurate measure of the precursor for the cytidine-5'-diphosphate-diglyceride, which in turn was the precursor of all the lipids, then the results of these experiments suggested that exchange reactions, in addition to synthesis from PA, were involved in phospholipid metabolism. These reactions were more sensitive to changes in oxygen concentration than was the growth rate.
Collapse
|
22
|
Abstract
The principal lipids associated with the electron transport membrane of Haemophilus parainfluenzae are phosphatidylethanolamine (78%), phosphatidylmonomethylethanolamine (0.4%), phosphatidylglycerol (18%), phosphatidylcholine (0.4%), phosphatidylserine (0.4%), phosphatidic acid (0.2%), and cardiolipin (3.0%). Phospholipids account for 98.4% of the extractible fatty acids. There are no glycolipids, plasmalogens, alkyl ethers, or lipo amino acid esters in the membrane lipids. Glycerol phosphate esters derived from the phospholipids by mild alkaline methanolysis were identified by their staining reactions, mobility on paper and ion-exchange column chromatography, and by the molar glycerol to phosphate ratios. Eleven diacyl phospholipids can be separated by two-dimensional thin-layer chromatography. Each lipid served as a substrate for phospholipase D, and had a fatty acid to phosphate ratio of 2:1. Each separated diacyl phospholipid was deacylated and the glycerol phosphate ester was identified by paper chromatography in four solvent systems. Of the 11 separated phospholipids, 3 were phosphatidylethanolamines, 2 were phosphatidylserines, and 2 were phosphatidylglycerols. Phosphatidylcholine, cardiolipin, and phosphatidic acid were found at a single location. Phosphatidylmonomethylethanolamine was found with the major phosphatidylethanolamine. Three distinct classes of phospholipids are separable according to their relative fatty acid compositions. (i) The trace lipids consist of two phosphatidylethanolamines, two phosphatidylserines, phosphatidylcholine, phosphatidic acid, and a phosphatidylglycerol. Each lipid represents less than 0.3% of the total lipid phosphate. These lipids are characterized by high proportions of the short (C(10) to C(14)) and long (C(19) to C(22)) fatty acids with practically no palmitoleic acid. (ii) The major phospholipids (93% of the lipid phosphate) are phosphatidylethanolamine, phosphatidylmonomethylethanolamine, and phosphatidylglycerol. These lipids contain a low proportion of the short (<C(14)) and long (>C(19)) fatty acids. Palmitic and palmitoleic acids represent over 80% of the total fatty acids. (iii) The fatty acid composition of the cardiolipin is intermediate between the other two classes. Both palmitoleic and the longer fatty acids represent a significant proportion of the total fatty acid.
Collapse
|
23
|
Salton MR, Schmitt MD. Effects of diphenylamine on carotenoids and menaquinones in bacterial membranes. BIOCHIMICA ET BIOPHYSICA ACTA 1967; 135:196-207. [PMID: 6037354 DOI: 10.1016/0005-2736(67)90114-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
24
|
White DC. Effect of glucose on the formation of the membrane-bound electron transport system in Haemophilus parainfluenzae. J Bacteriol 1967; 93:567-73. [PMID: 4289851 PMCID: PMC276477 DOI: 10.1128/jb.93.2.567-573.1967] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The catabolism of glucose by Haemophilus parainfluenzae affected the formation of the primary dehydrogenases of the membrane-bound electron transport system. The formation of other components of the respiratory system, 2-demethyl vitamin K(2), cytochrome b(1), cytochrome c(1), and the cytochrome oxidases a(1), a(2), and o, is not affected by the catabolism of glucose. The formation of all components of the electron transport system is controlled by the identity and concentration of the terminal electron acceptors present in the growth medium.
Collapse
|
25
|
|
26
|
|
27
|
On the Role of Ubiquinone1 1The research and the preparation of this article were sustained in part by grants from “Fonds der Chemie” and from “Deutsche Forschungsgemeinschaft.”. ACTA ACUST UNITED AC 1967. [DOI: 10.1016/b978-1-4831-9970-2.50012-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
|
28
|
White DC. The obligatory involvement of the electron transport system in the catabolic metabolism of Haemophilus parainfluenzae. Antonie Van Leeuwenhoek 1966; 32:139-58. [PMID: 5296844 DOI: 10.1007/bf02097454] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
29
|
Parson WW, Rudney H. The possible role of quinone methines in phosphorylation reactions in Rhodospirillum rubrum and liver mitochondria. Biochemistry 1966; 5:1013-8. [PMID: 5911279 DOI: 10.1021/bi00867a029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
30
|
Wright EA, White DC. Formation of a functional electron transport system during growth of penicillin-induced spheroplasts of Haemophilus parainfluenzae. J Bacteriol 1966; 91:1356-62. [PMID: 4286451 PMCID: PMC316035 DOI: 10.1128/jb.91.3.1356-1362.1966] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Wright, Elizabeth A. (University of Kentucky College of Medicine, Lexington), and David C. White. Formation of a functional electron transport system during growth of penicillin-induced spheroplasts of Haemophilus parainfluenzae. J. Bacteriol. 91:1356-1362. 1966.-Penicillin in a lactose medium can be used to cause the formation of spheroplasts in Haemophilus parainfluenzae. The resulting spheroplasts grew under conditions which produced rapid formation of the electron transport system in the normal bacteria. The following elements that are incorporated into a functionally active electron transport system were formed in spheroplasts: formate and l-lactate dehydrogenases, 2-demethyl vitamin K(2), cytochromes b(1) and c(1), and the cytochrome oxidases. The catabolic enzymes aldolase, glyceraldehyde-3-phosphate dehydrogenase, and malic dehydrogenase showed slight increases in activity. These experiments indicated that spheroplasts can form a fully functional electron transport system essentially similar to that formed during normal growth. The various components of the electron transport system were formed at different rates in the growing spheroplasts.
Collapse
|