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Abstract:

The high levels of δ-aminolevulinate synthetase (ALA-S) in Rhodopseudomonas palustris cells grown anaerobically in the light (Ph) decrease to those found in cells grown aerobically in the dark (A), when the former cultures were vigorously oxygenated; simultaneously bacteriochlorophyll (Bchl) synthesis abruptly halted leading to diminished steady-state specific Bchl content. When flushing oxygen was interrupted, enzymic activity increased, whether chloramphenicol was present or not in the medium; if the protein synthesis inhibitor was added when oxygenation started, ALA-S declined in the same fashion as in its absence, but thereafter reactivation of the enzyme was lower than before. Succinyl-CoA-synthetase and ALA-dehydratase activities were also measured under the conditions described, and no changes at all have been observed. The existence of different forms of ALA-S in R. palustris depending on growth conditions is postulated along with the formation of low molecular weight factors which can modulate ALA-S activity by binding to the enzyme; a widespread mechanism in the adaptation of micro-organisms to changes in environment. It is also proposed that this particular regulatory phenomenon, could be referred to as a switch off/on mechanism controlling ALA-S activity in R. palustris. © 1987.

Registro:

Documento: Artículo
Título:Porphyrin biosynthesis in Rhodopseudomonas palustris-XII. δ-aminolevulinate synthetase switch-off/on regulation
Autor:Viale, A.A.; Wider, E.A.; Del C. Batlle, A.M.
Filiación:Cátedra de Microbiología e Inmunología and Centro de Investigaciones sobre Porfirinas y Porfirias, CIPYP (CONICET), Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina
Palabras clave:5 aminolevulinate synthase; bacteriochlorophyll; chloramphenicol; porphyrin; adaptation; article; biosynthesis; enzymology; homeostasis; metabolism; oxidation reduction reaction; Rhodopseudomonas; 5-Aminolevulinate Synthetase; Adaptation, Physiological; Bacteriochlorophylls; Chloramphenicol; Homeostasis; Oxidation-Reduction; Porphyrins; Rhodopseudomonas; Support, Non-U.S. Gov't
Año:1987
Volumen:19
Número:4
Página de inicio:379
Página de fin:383
DOI: http://dx.doi.org/10.1016/0020-711X(87)90012-7
Título revista:International Journal of Biochemistry
Título revista abreviado:Int. J. Biochem.
ISSN:0020711X
CODEN:IJBOB
CAS:5 aminolevulinate synthase, 9037-14-3; chloramphenicol, 134-90-7, 2787-09-9, 56-75-7; porphyrin, 24869-67-8; 5-Aminolevulinate Synthetase, EC 2.3.1.37; Bacteriochlorophylls; Chloramphenicol, 56-75-7; Porphyrins
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_0020711X_v19_n4_p379_Viale.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0020711X_v19_n4_p379_Viale

Referencias:

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  • Firsow, Drews, Differentiation of the intracytoplasmatic membrane of Rhodopseudomonas palustris induced by variations of oxygen partial pressure or light intensity (1977) Arch. Microbiol., 115, pp. 299-306
  • Gibson, Neuberber, Scott, The purification and properties of δ-aminolaevulic acid dehydratase (1955) Biochem. J., 61, pp. 618-629
  • Higuchi, Goto, Fujimoto, Namiki, Kikuchi, Effect of inhibitors of nucleic acid and protein synthesis on the induced synthesis of bacteriochlorophyll and δ-aminolevulinic acid synthetase by Rhodopseudomonas spheroides (1965) Biochim. biophys. Acta, 95, pp. 94-110
  • Higuchi, Ohba, Sakai, Kurashima, Kikuchi, Change of metabolic stabilty of δ-aminolevulinate synthetase in Rhodopseudomonas spheroides cells probably related to changes of intracellular oxidation-reduction state (1968) J. Biochem., 64, pp. 795-805
  • Kaufman, Alivisatos, Purification and properties of the phosphorylating enzyme from spinach (1955) J. biol. Chem., 216, pp. 141-152
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  • Lascelles, The bacterial photosynthetic apparatus (1968) Advances in Microbial Physiology, 2, pp. 1-42. , A.H. Rose, J.F. Wilkinson, Academic Press, New York
  • Lowry, Rosebrough, Farr, Randall, Protein measurement with the Folin phenol reagent (1951) J. biol. Chem., 193, pp. 265-275
  • Oelze, Drews, Membranes of photosynthetic bacteria (1972) Biochim. biophys. Acta, 265, pp. 209-239
  • Schön, Der Einfluss von Amytal 24-Dinitrophenol und Phenazinmethosulfat auf die 3acteriochlorophyllsynthese in anaeroben Kulturen von Rhodospirillum rubrum (1968) Archiv f�r Mikrobiologie, 61, pp. 187-194
  • Viale, Wider, Batlle del, Biosintesis de bacterioclorofila en Rhodopseudomonas palustris (1980) Rev. Arg. Microbiol., 12, pp. 1-9
  • Viale, Wider, Batlle del, Porphyrin biosynthesis in Rhodopseudomonas palustris. II (1980) Int. J. Biochem., 12, pp. 729-733
  • Viale, Wider, Batlle del, Porphyrin biosynthesis in Rhodopseudomoas palustris. XI: Extraction and characterization of δ-aminolevulinate synthetase (1986) Comp. Biochem. Physiol., , Part A. In press

Citas:

---------- APA ----------
Viale, A.A., Wider, E.A. & Del C. Batlle, A.M. (1987) . Porphyrin biosynthesis in Rhodopseudomonas palustris-XII. δ-aminolevulinate synthetase switch-off/on regulation. International Journal of Biochemistry, 19(4), 379-383.
http://dx.doi.org/10.1016/0020-711X(87)90012-7
---------- CHICAGO ----------
Viale, A.A., Wider, E.A., Del C. Batlle, A.M. "Porphyrin biosynthesis in Rhodopseudomonas palustris-XII. δ-aminolevulinate synthetase switch-off/on regulation" . International Journal of Biochemistry 19, no. 4 (1987) : 379-383.
http://dx.doi.org/10.1016/0020-711X(87)90012-7
---------- MLA ----------
Viale, A.A., Wider, E.A., Del C. Batlle, A.M. "Porphyrin biosynthesis in Rhodopseudomonas palustris-XII. δ-aminolevulinate synthetase switch-off/on regulation" . International Journal of Biochemistry, vol. 19, no. 4, 1987, pp. 379-383.
http://dx.doi.org/10.1016/0020-711X(87)90012-7
---------- VANCOUVER ----------
Viale, A.A., Wider, E.A., Del C. Batlle, A.M. Porphyrin biosynthesis in Rhodopseudomonas palustris-XII. δ-aminolevulinate synthetase switch-off/on regulation. Int. J. Biochem. 1987;19(4):379-383.
http://dx.doi.org/10.1016/0020-711X(87)90012-7