Research Topics
Genomes and Genes | B BrahamshaSummaryAffiliation: University of California Country: USA Publications
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Publications
Non-flagellar swimming in marine SynechococcusB Brahamsha
Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92093 0202, USA
J Mol Microbiol Biotechnol 1:59-62. 1999..These developments, as well as the future research directions they suggest, are discussed...
A genetic manipulation system for oceanic cyanobacteria of the genus SynechococcusB Brahamsha
Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92093 0202, USA
Appl Environ Microbiol 62:1747-51. 1996..Dolganov and A. R. Grossman, J. Bacteriol. 175:7644-7651, 1993; N. F. Tsinoremas, A. K. Kutach, C. A. Strayer, and S. S. Golden, J. Bacteriol. 176:6764-6768, 1994) has been applied to these organisms...- An abundant cell-surface polypeptide is required for swimming by the nonflagellated marine cyanobacterium SynechococcusB Brahamsha
Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California at San Diego, La Jolla 92093 0202, USA
Proc Natl Acad Sci U S A 93:6504-9. 1996..Insertional inactivation of swmA in Synechococcus sp. strain WH8102 results in a loss of the ability to translocate, although the mutant strain, Swm-1, generates torque. This suggests that SwmA functions in the generation of thrust... - Swimming motility mutants of marine Synechococcus affected in production and localization of the S-layer protein SwmAJ McCarren
Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093 0202, USA
J Bacteriol 191:1111-4. 2009..An analysis of mutations in seven genes at two loci in the Synechococcus sp. strain WH8102 genome indicates that a multicomponent transporter and glycosyltransferases are required for the production and proper localization of SwmA... - The genome of a motile marine SynechococcusB Palenik
Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093 0202, USA
Nature 424:1037-42. 2003..On the basis of its genome, WH8102 is more of a generalist than two related marine cyanobacteria... - SwmB, a 1.12-megadalton protein that is required for nonflagellar swimming motility in SynechococcusJ McCarren
Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093 0202, USA
J Bacteriol 189:1158-62. 2007..This highly repetitive 1.12-MDa polypeptide is associated with the cell surface, where it is arranged in a punctate manner. Inactivation of swmB does not affect the localization of SwmA, an S-layer protein also required for swimming... - Transposon mutagenesis in a marine synechococcus strain: isolation of swimming motility mutantsJ McCarren
Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0202, USA
J Bacteriol 187:4457-62. 2005..Included within these clusters are several multicomponent transport systems as well as a number of glycosyltransferases... - Inactivation of swmA results in the loss of an outer cell layer in a swimming synechococcus strainJ McCarren
Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, 3135 Hubbs Hall, 8750 Biological Grade, La Jolla, CA 92093 0202, USA
J Bacteriol 187:224-30. 2005..In addition, the work presented here describes the envelope structure of a model swimming cyanobacterium... - Swimming marine Synechococcus strains with widely different photosynthetic pigment ratios form a monophyletic groupG Toledo
Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093 0202, USA
Appl Environ Microbiol 65:5247-51. 1999..These findings indicate that the PUB/PEB pigment ratio is not a useful characteristic for defining phylogenetic groups of marine Synechococcus strains... - Genetic identification of a high-affinity Ni transporter and the transcriptional response to Ni deprivation in Synechococcus sp. strain WH8102C L Dupont
Scripps Institution of Oceanography, University of California, San Diego, San Diego, California, USA
Appl Environ Microbiol 78:7822-32. 2012..Both sodT::sodB and sodN::sodB lines exhibited an impaired ability to grow at low Fe concentrations. We propose a posttranslational allosteric SodT regulation involving the binding of Ni to a histidine-rich intracellular protein loop... - The marine cyanobacterium Synechococcus sp. WH7805 requires urease (urea amidohydrolase, EC 3.5.1.5) to utilize urea as a nitrogen source: molecular-genetic and biochemical analysis of the enzymeJ L Collier
Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92093 0202, USA
Microbiology 145:447-59. 1999.... - Identification of multiple RNA polymerase sigma factor homologs in the cyanobacterium Anabaena sp. strain PCC 7120: cloning, expression, and inactivation of the sigB and sigC genesB Brahamsha
Department of Molecular Genetics and Cell Biology, University of Chicago, Illinois 60637
J Bacteriol 174:7273-82. 1992..sigB and sigC mRNAs are detectable only under nitrogen-limiting conditions. Insertional inactivation of sigB and sigC indicates that neither gene alone is essential for nitrogen fixation or heterocyst differentiation... - Isolation and characterization of the gene encoding the principal sigma factor of the vegetative cell RNA polymerase from the cyanobacterium Anabaena sp. strain PCC 7120B Brahamsha
Department of Molecular Genetics and Cell Biology, University of Chicago, Illinois 60637
J Bacteriol 173:2442-50. 1991..Continued or enhanced transcription of sigA under nitrogen starvation conditions is consistent with the observation that the principal RNA polymerase in differentiating cells contains SigA...