Synechocystis sp. PCC6803 fusB gene, located outside of the str operon, encodes a polypeptide related to protein synthesis factor EF-G

1994 ◽  
Vol 25 (4) ◽  
pp. 735-738 ◽  
Author(s):  
Piri I. Welcsh ◽  
Douglas R. Johnson ◽  
Yangsheng Zhang ◽  
Caroline A. Breitenberger
Keyword(s):  
Protein Synthesis ◽  
Str Operon ◽  
Synechocystis Sp

scholarly journals Contribution of protein synthesis depression to poly-β-hydroxybutyrate accumulation in Synechocystis sp. PCC 6803 under nutrient-starved conditions

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Kazuho Hirai ◽  
Miki Nojo ◽  
Yosuke Sato ◽  
Mikio Tsuzuki ◽  
Norihiro Sato
Keyword(s):  
Protein Synthesis ◽  
Lipid Droplets ◽  
Carbon Sources ◽  
Cellular Proteins ◽  
Protein Synthesis Inhibitor ◽  
Wild Type ◽  
Synthesis Inhibitor ◽  
Synechocystis Sp ◽  
Pcc 6803

AbstractPoly-β-hydroxybutyrate (PHB) in cyanobacteria, which accumulates as energy and carbon sources through the action of photosynthesis, is expected to substitute for petroleum-based plastics. This study first demonstrated that PHB accumulation was induced, with the appearance of lipid droplets, in sulfur (S)-starved cells of a cyanobacterium, Synechocystis sp. PCC 6803, however, to a lower level than in nitrogen (N)- or phosphorus (P)-starved cells. Concomitantly found was repression of the accumulation of total cellular proteins in the S-starved cells to a similar level to that in N-starved cells, and a severer level than in P-starved cells. Intriguingly, PHB accumulation was induced in Synechocystis even under nutrient-replete conditions, upon repression of the accumulation of total cellular proteins through treatment of the wild type cells with a protein synthesis inhibitor, chloramphenicol, or through disruption of the argD gene for Arg synthesis. Meanwhile, the expression of the genes for PHB synthesis was hardly induced in S-starved cells, in contrast to their definite up-regulation in N- or P-starved cells. It therefore seemed that PHB accumulation in S-starved cells is achieved through severe repression of protein synthesis, but is smaller than in N- or P-starved cells, owing to little induction of the expression of PHB synthesis genes.

Comparison of salt- and heat-induced alterations of protein synthesis in the cyanobacterium Synechocystis sp. PCC 6803

1991 ◽  
Vol 155 (6) ◽  
pp. 587-592 ◽  
Author(s):  
Martin Hagemann ◽  
Dieter Techel ◽  
Ludger Rensing
Keyword(s):  
Protein Synthesis ◽  
Synechocystis Sp ◽  
Pcc 6803

Homochirality as the Signature of Extra-Terrestrial Life

1997 ◽  
Vol 161 ◽  
pp. 505-510
Author(s):  
Alexandra J. MacDermott ◽  
Laurence D. Barron ◽  
Andrè Brack ◽  
Thomas Buhse ◽  
John R. Cronin ◽  
...  
Keyword(s):  
Amino Acids ◽  
Protein Synthesis ◽  
Optical Rotation ◽  
Physical Origin ◽  
Natural Choice ◽  
Rosetta Mission ◽  
Terrestrial Life ◽  
Subsurface Layers ◽  
Solar System Bodies ◽  
Origin Of Homochirality

AbstractThe most characteristic hallmark of life is its homochirality: all biomolecules are usually of one hand, e.g. on Earth life uses only L-amino acids for protein synthesis and not their D mirror images. We therefore suggest that a search for extra-terrestrial life can be approached as a Search for Extra- Terrestrial Homochirality (SETH). The natural choice for a SETH instrument is optical rotation, and we describe a novel miniaturized space polarimeter, called the SETH Cigar, which could be used to detect optical rotation as the homochiral signature of life on other planets. Moving parts are avoided by replacing the normal rotating polarizer by multiple fixed polarizers at different angles as in the eye of the bee. We believe that homochirality may be found in the subsurface layers on Mars as a relic of extinct life, and on other solar system bodies as a sign of advanced pre-biotic chemistry. We discuss the chiral GC-MS planned for the Roland lander of the Rosetta mission to a comet and conclude with theories of the physical origin of homochirality.

Lymphocyte activity and protein synthesis

2001 ◽  
Vol 101 (6) ◽  
pp. 591
Author(s):  
DEREK C. MACALLAN
Keyword(s):  
Protein Synthesis ◽  
Lymphocyte Activity

Protein synthesis in mitochondria purified from roots, leaves and flowers of sugar beet

1991 ◽  
Vol 83 (1) ◽  
pp. 7-16 ◽  
Author(s):  
Christina Lind ◽  
Christer Hallden ◽  
Ian M. Moller
Keyword(s):  
Protein Synthesis ◽  
Sugar Beet

Respiratory energy requirements and rate of protein turnover in vivo determined by the use of an inhibitor of protein synthesis and a probe to assess its effect

1994 ◽  
Vol 92 (4) ◽  
pp. 585-594 ◽  
Author(s):  
T. J. Bouma ◽  
R. De Visser ◽  
J. H. J. A. Janssen ◽  
M. J. De Kock ◽  
P H. Van Leeuwen ◽  
...  
Keyword(s):  
Protein Synthesis ◽  
Protein Turnover ◽  
Energy Requirements ◽  
Inhibitor Of Protein Synthesis
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