Gene regulation in Streptococcus pneumoniae - RePub - Erasmus ...

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eferred to as t=0. Bacteriology results are expressed as geometric mean ± standard errors of the mean (SEM). Comparison of bacterial loads in the time-course experiment was performed using a Student’s t test with P
Chapter 6 data were processed using MicroPreP as described (9, 10, 32). Prior to analysis, automatically and manually flagged spots and spots with very low background subtracted signal intensity [5% of the weakest spots (sum of Cy3 and Cy5 net signals)], were filtered out of all datasets. Net signal intensities were calculated using a grid-based background subtraction. A grid- based Lowess transformation was performed for slide normalization, negative and empty values were removed, and outliers were removed by the deviation test. Further analysis was performed using a Cyber-T Student’s t test for paired data (22). For identification of differentially expressed genes, only genes with a minimum of six reliable measurements, a Bayesian p-value < 0.001, a False Discovery Rate (FDR) < 0.05, and a standard deviation < ratio were included. Since these criteria are purely a statistical measure of differential gene expression and reproducibility across replicates, an additional fold-change cut-off of 2 was applied. Accession numbers The microarray data have been deposited in the NCBI Gene Expression Omnibus (GEO) database (http://www.ncbi.nlm.nih.gov/geo/) under GEO Series accession number GSE9850. 164 164
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Gene regulation in Streptococcus pn
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Cover image by Duve van Boggelen (w
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Promotiecommissie Promotoren: Prof.
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CHAPTER 1 Introduction 7
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Introduction Figure 1. Infections c
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Interestingly, autolysis induced by
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histidine kinase is the sensor prot
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metabolism are often required for v
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egulatory systems, aiming to elucid
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11. Cockeran, R., A. J. Theron, H.
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33. Li, S., S. J. Kelly, E. Lamani,
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53. Romero, P., R. Lopez, and E. Ga
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CHAPTER 2 Regulation of gene expres
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Introduction Streptococcus pneumoni
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Materiaals and Meethods Gene regula
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(Invitrogen), 0.2 mM aminoallyl dUT
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Isolation of pneumococcal RNA durin
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Resultss and Discuussion Gene regul
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Table 1. Genes regulated by RR09 in
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phosphofructokinase, and a fructose
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Figure 4. Expression of rlrA and rr
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correlated well with our in vitro m
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Figure 7. Bacterial loads in blood
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Acknowledgments This work was suppo
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10. Ibrahim, Y. M., A. R. Kerr, J.
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genome sequence of a virulent isola
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Gene regulation by RR09 in S. pneum
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Gene regulation by RR09 in S. pneum
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Table S4. Genes up- and downregulat
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Table S6. Genes up- and downregulat
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Chapter 3 Abstract 62 62 Previous s
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Chapter 3 between the wild-type and
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Chapter 3 S. pneumoniae TIGR4 by CS
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Chapter 3 performance liquid chroma
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Chapter 3 Results Transcriptional a
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Chapter 3 Table 3. Differentially e
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Chapter 3 Figure 2. Colonization mo
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Chapter 3 than the D39ΔpsaR-infect
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Chapter 3 effect was more severe fo
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Chapter 3 in TIGR4ΔpsaR. However,
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Chapter 3 References 1. Adrian, P.
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Chapter 3 21. Hemsley, C., E. Joyce
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Chapter 3 40. McCluskey, J., J. Hin
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CHAPTER 4 CodY of Streptococcus pne
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Introduction Bacteria encounter var
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Materials and Methods Bacterial str
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Table 2. Oligonucleotide primers us
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The CodY regulon of S. pneumoniae I
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The CodY regulon of S. pneumoniae w
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Accession numbers The microarray da
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Table 3. Differentially expressed g
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Binding of CodY to target promoters
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The CodY regulon of S. pneumoniae E
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The CodY regulon of S. pneumoniae F
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Discussion CodY has been described
Page 114 and 115: levels of adherence in D39. Using a
Page 116 and 117: References The CodY regulon of S. p
Page 118 and 119: Glass. 2001. Genome of the bacteriu
Page 120 and 121: 40. Shivers, R. P., S. S. Dineen, a
Page 122 and 123: CHAPTER 5 Regulation of glutamine a
Page 124 and 125: Introduction Regulation of nitrogen
Page 126 and 127: Materials and Methods Nitrogen Meta
Page 128 and 129: TK136 D39 Δcps; Km R capsule-less
Page 130 and 131: gene from pORI28, was fused to the
Page 132 and 133: Construction of lacZ fusions Chromo
Page 134 and 135: Enzyme assays Cell-free extracts, u
Page 136 and 137: Reverse-transcriptase PCR RNA isola
Page 138 and 139: Table 3. Summary of transcriptome c
Page 140 and 141: effect caused by altered intracellu
Page 142 and 143: examine whether zwf is only transcr
Page 144 and 145: (http://www.bd.com/ds/technicalCent
Page 146 and 147: H6-GlnR alone at the concentration
Page 148 and 149: Discussion In this study, we charac
Page 150 and 151: Acknowledgements TK, JB and HB are
Page 152 and 153: 11. den Hengst, C. D., S. A. van Hi
Page 154 and 155: Nitrogen Metabolism in S. pneumonia
Page 156 and 157: 52. Wray, L. V., Jr., J. M. Zalieck
Page 158 and 159: CHAPTER 6 Site-specific contributio
Page 160 and 161: Introduction GlnR-regulon and pneum
Page 162 and 163: Materials and Methods Bacterial str
Page 166 and 167: Results GlnR-regulon and pneumococc
Page 168 and 169: Figure 3. Colonization model. Bacte
Page 170 and 171: GlnR-regulon and pneumococcal virul
Page 172 and 173: Table 2. Differentially expressed g
Page 174 and 175: Discussion The ability to adequatel
Page 176 and 177: The microarray data showed that pre
Page 178 and 179: Acknowledgments WTH is supported by
Page 180 and 181: 12. Ibrahim, Y. M., A. R. Kerr, J.
Page 182 and 183: 33. Zalieckas, J. M., L. V. Wray, J
Page 184 and 185: CHAPTER 7 Pneumococcal gene regulat
Page 186 and 187: Introduction Regulation of gene exp
Page 188 and 189: Gene regulation and metabolism in S
Page 190 and 191: makes it possible for the pneumococ
Page 192 and 193: A CcpA homologue exists in the pneu
Page 194 and 195: double mutant, suggesting direct re
Page 196 and 197: References Gene regulation and meta
Page 198 and 199: 23. Kerr, A. R., P. V. Adrian, S. E
Page 200 and 201: 45. Sonenshein, A. L. 2005. CodY, a
Page 202 and 203: CHAPTER 8 Summarizing discussion 20
Page 204 and 205: that the observed virulence phenoty
Page 206 and 207: CodY was found to be required for a
Page 208 and 209: References Summarizing discussion 1
Page 210 and 211: Summarizing discussion 21. Orihuela
Page 212 and 213: Samenvatting en discussie Curriculu
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Samenvatting en discussie kunnen ge
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Bevindingen die dit onderbouwen, we
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Curriculum Vitae Curriculum Vitae W
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Dankwoord Jeetje, dat het dan toch
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oekje en ik kijk uit naar de bijbeh
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