Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Jean Houmard"'
Autor:
Jean Houmard
Publikováno v:
International Journal of Peptide and Protein Research. 8:199-204
The synthesis of chromophoric substrates allowing an accurate determination of the staphylococcal protease activity is described. BOC-L-Glu-OPh, BOC-L-Phe-L-Glu-OPh, BOC-L-Ala-L-Glu-OPh, BOC-L-Ser-L-Glu-OPh and Z-L-Glu-pNA were prepared*. Kinetic par
Autor:
Jean Houmard, Mark K. Ashby
Publikováno v:
Microbiology and Molecular Biology Reviews. 70:472-509
SUMMARY A survey of the already characterized and potential two-component protein sequences that exist in the nine complete and seven partially annotated cyanobacterial genome sequences available (as of May 2005) showed that the cyanobacteria possess
Autor:
Otilia Cheregi, Imre Vass, Jean Houmard, Jean-Charles Cadoret, Bernard Rousseau, Cosmin Sicora, Irène Perewoska
Publikováno v:
Journal of Biological Chemistry. 280:33935-33944
Cyclic nucleotides cAMP and cGMP are ubiquitous signaling molecules that mediate many adaptative responses in eukaryotic cells. Cyanobacteria present the peculiarity among the prokaryotes of having the two types of cyclic nucleotide. Cellular homeost
Publikováno v:
Plant and Cell Physiology. 44:1141-1151
Iron plays a key role in the synthesis and functioning of the photosynthetic apparatus. Conditions of partial iron deficiency that lead to a relatively stable phenotype were established and the effects of starvation studied in the unicellular red alg
Publikováno v:
Molecular Microbiology. 46:1157-1167
We report here transcriptional analyses of a cyanobacterial gene encoding an aminoacyl-tRNA synthetase (aaRS), the gltX gene from Synechoccocus sp. PCC 7942, coding for the glutamyl-tRNA synthetase. We show that the transcript levels of gltX in Synec
Autor:
Jean Houmard, Nicole Tandeau de Marsac, John G. Cobley, Sanaâ Noubir, Irène Perewoska, Jesús A. G. Ochoa de Alda, Ignacio Luque
Publikováno v:
Molecular Microbiology. 43:749-762
In the cyanobacterium Calothrix sp. PCC 7601 the cpc2 operon encoding phycocyanin 2 (PC2) is expressed if red radiations are available. RcaD was previously identified in extracts from red-light-grown cells as an alkaline phosphatase-sensitive protein
Publikováno v:
Molecular Microbiology. 41:937-947
Cyanobacteria respond to environmental stress conditions by degrading their phycobilisomes, the light harvesting complexes for photosynthesis. The expression of nblA, a key gene in this process, is controlled by the response regulator NblR in Synecho
Publikováno v:
Nature communications. 5
The primary endosymbiotic origin of chloroplasts is now well established but the identification of the present cyanobacteria most closely related to the plastid ancestor remains debated. We analyse the evolutionary trajectory of a subset of highly co
Publikováno v:
Microbiology. 146:3183-3194
Cyanobacteria modulate intracellular levels of cAMP and cGMP in response to environmental conditions (light, nutrients and pH). In an attempt to identify components of the cAMP and cGMP signalling pathways in Synechocystis PCC 6803, the authors scree
Autor:
Jean Houmard, Frédéric Partensky, Katarzyna A. Palinska, David J. Scanlan, Rosmarie Rippka, Wolfgang R. Hess, Christiane Lichtlé, Thérèse Coursin, Michael Herdman, Isabelle Iteman
Publikováno v:
ResearcherID
Scopus-Elsevier
Scopus-Elsevier
The formal description of Prochlorococcus marinus Chisholm et al. 1992, 299 was based on the non-axenic nomenclatural type, strain CCMP 1375T. The purification and properties of the axenic strain PCC 9511, derived from the same primary culture (SARG)