Research Topics
| Mark GomelskySummaryAffiliation: University of Wyoming Country: USA Publications
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Publications
Light helps bacteria make important lifestyle decisionsMark Gomelsky
Department of Molecular Biology, University of Wyoming, Laramie, WY 82071, USA
Trends Microbiol 19:441-8. 2011..We also discuss how 'seeing' helps some pathogenic bacteria make another important choice, i.e. between environmental and host-associated lifestyles...
BLUF: a novel FAD-binding domain involved in sensory transduction in microorganismsMark Gomelsky
Department of Molecular Biology, University of Wyoming, Laramie, WY 82071 3944, USA
Trends Biochem Sci 27:497-500. 2002..The predicted secondary structure reveals that the BLUF domain is a novel FAD-binding fold...
Identification and in vivo characterization of PpaA, a regulator of photosystem formation in Rhodobacter sphaeroidesLarissa Gomelsky
Department of Molecular Biology, University of Wyoming, Laramie, WY 82071 3944, USA
Microbiology 149:377-88. 2003..It is suggested that PpaA binds a corrinoid cofactor and the availability or structure of this cofactor affects PpaA activity...
Hierarchical regulation of photosynthesis gene expression by the oxygen-responsive PrrBA and AppA-PpsR systems of Rhodobacter sphaeroidesLarissa Gomelsky
Department of Molecular Biology, University of Wyoming, Laramie, WY 82071, USA
J Bacteriol 190:8106-14. 2008....
Novel heme-based oxygen sensor with a revealing evolutionary historyOleg V Moskvin
Department of Molecular Biology, University of Wyoming, Laramie, Wyoming 82071, USA
J Biol Chem 282:28740-8. 2007..A phylogenetic analysis revealed that SCHIC domain proteins form a distinct cluster within a superfamily that includes vitamin B(12)-binding proteins and other proteins that may bind other kinds of tetrapyrroles...
Transcriptome analysis of the Rhodobacter sphaeroides PpsR regulon: PpsR as a master regulator of photosystem developmentOleg V Moskvin
Department of Molecular Biology, University of Wyoming, Laramie, WY 82071, USA
J Bacteriol 187:2148-56. 2005..It is revealed that the PrrBA and AppA-PpsR systems, believed to work independently, in fact interact and coordinately regulate photosystem development...
Natural and engineered photoactivated nucleotidyl cyclases for optogenetic applicationsMin Hyung Ryu
Department of Molecular Biology, University of Wyoming, Laramie, Wyoming 82071, USA
J Biol Chem 285:41501-8. 2010....
The PpaA/AerR regulators of photosynthesis gene expression from anoxygenic phototrophic proteobacteria contain heme-binding SCHIC domainsOleg V Moskvin
Department of Molecular Biology, University of Wyoming, Dept 3944, 1000 E University Ave, Laramie, WY 82071, USA
J Bacteriol 192:5253-6. 2010..Here we show that the predicted SCHIC domain PpaA/AerR regulators also bind heme and respond to oxygen in vitro, despite their low sequence identity with AppA...
The PilZ domain is a receptor for the second messenger c-di-GMP: the PilZ domain protein YcgR controls motility in enterobacteriaDmitri A Ryjenkov
Department of Molecular Biology, University of Wyoming, Laramie, Wyoming 82071, USA
J Biol Chem 281:30310-4. 2006..Therefore, biochemical and genetic evidence presented here establishes PilZ as a long sought after c-di-GMP-binding domain and YcgR as a c-di-GMP receptor affecting motility in enterobacteria...
Rhodobase, a meta-analytical tool for reconstructing gene regulatory networks in a model photosynthetic bacteriumOleg V Moskvin
Department of Molecular Biology, University of Wyoming, Laramie, WY 82071, USA
Biosystems 103:125-31. 2011..The database of transcriptional profile correlations, the network visualization engine and the optimized search engine for transcription factor binding sites analysis are available at http://rhodobase.org...
An unorthodox bacteriophytochrome from Rhodobacter sphaeroides involved in turnover of the second messenger c-di-GMPMarina Tarutina
Department of Molecular Biology, University of Wyoming, Laramie, Wyoming 82071, USA
J Biol Chem 281:34751-8. 2006..BphG1 is potentially the first "bifunctional" enzyme capable of both c-di-GMP synthesis and hydrolysis. A model for the regulation of the "opposite" activities of BphG1 is presented...
The ubiquitous protein domain EAL is a cyclic diguanylate-specific phosphodiesterase: enzymatically active and inactive EAL domainsAndrew J Schmidt
Department of Molecular Biology, University of Wyoming, Laramie, 82071, USA
J Bacteriol 187:4774-81. 2005..The enzymatic inactivity of EAL domains may explain their coexistence with GGDEF domains in proteins possessing c-di-GMP synthase (diguanulate cyclase) activity...
A post-translational, c-di-GMP-dependent mechanism regulating flagellar motilityXin Fang
Department of Molecular Biology, University of Wyoming, Laramie, WY 82071, USA
Mol Microbiol 76:1295-305. 2010....
Construction and validation of the Rhodobacter sphaeroides 2.4.1 DNA microarray: transcriptome flexibility at diverse growth modesChristopher T Pappas
Department of Molecular Biology, University of Wyoming, 1000 E. University Ave, Dept. 3944, Laramie, WY 82071, USA
J Bacteriol 186:4748-58. 2004..sphaeroides genechip as a powerful and reliable tool for studying unprecedented metabolic versatility of this bacterium...
Cyclic diguanylate is a ubiquitous signaling molecule in bacteria: insights into biochemistry of the GGDEF protein domainDmitri A Ryjenkov
Department of Molecular Biology, University of Wyoming, Dept 3944, 1000 E University Ave, Laramie, WY 82071, USA
J Bacteriol 187:1792-8. 2005..This study establishes that majority of GGDEF domain proteins are c-di-GMP specific, that c-di-GMP synthesis is a wide-spread phenomenon in Bacteria, and that it is highly regulated...
Earliest changes in the left ventricular transcriptome postmyocardial infarctionMark H Harpster
Department of Molecular Biology, University of Wyoming, Laramie, 82071, USA
Mamm Genome 17:701-15. 2006..ARG1: was the single-most highly induced transcript in the database (121-fold in IF region) and its induction in heart has not been previously reported...
Structure of a bacterial BLUF photoreceptor: insights into blue light-mediated signal transductionAstrid Jung
Max Planck Institute for Medical Research, Department of Biomolecular Mechanisms, Jahnstrasse 29, 69120 Heidelberg, Germany
Proc Natl Acad Sci U S A 102:12350-5. 2005..The structure suggests a unique photochemical signaling switch in which the absorption of light induces a structural change in the rim surrounding the hook, thereby changing the protein interface between BLUF and the output domain...
Responses of the Rhodobacter sphaeroides transcriptome to blue light under semiaerobic conditionsStephan Braatsch
, , Giesse, Germany
J Bacteriol 186:7726-35. 2004..The identified transcriptome responses provided a framework for deciphering blue-light-dependent signal transduction pathways in R. sphaeroides...
A single flavoprotein, AppA, integrates both redox and light signals in Rhodobacter sphaeroidesStephan Braatsch
, , Germany
Mol Microbiol 45:827-36. 2002..capsulatus, is known to participate in the redox-dependent control of photosynthesis gene expression. Thus, AppA is the first example of a protein with dual sensing capabilities that integrates both redox and light signals...
Transcriptome and physiological responses to hydrogen peroxide of the facultatively phototrophic bacterium Rhodobacter sphaeroidesTanja Zeller
, University of Giessen, Germany
J Bacteriol 187:7232-42. 2005..The transcription of the AppA-PpsR-dependent genes was down at 30 min, apparently due to the significant decrease in appA mRNA...
A staphylococcal GGDEF domain protein regulates biofilm formation independently of cyclic dimeric GMPLinda M Holland
School of Biomolecular and Biomedical Science, Ardmore House, University College Dublin, Belfield, Dublin 4, Ireland
J Bacteriol 190:5178-89. 2008..Our data raise the possibility that staphylococci cannot synthesize c-di-GMP and have only remnants of a c-di-GMP signaling pathway...
Regulation of hydrogen peroxide-dependent gene expression in Rhodobacter sphaeroides: regulatory functions of OxyRTanja Zeller
Institut fur Mikrobiologie und Molekularbiologie, University of Giessen, Giessen, Germany
J Bacteriol 189:3784-92. 2007..The role of reduced OxyR as an activator is shown for the first time. Our data reveal that the OxyR-mediated response is fast and transient. In addition, we found that additional regulatory pathways are involved in the H(2)O(2) response...
C-di-GMP: the dawning of a novel bacterial signalling systemUte Romling
Microbiology and Tumor Biology Center, Karolinska Institutet, Box 280, SE 17177 Stockholm, Sweden
Mol Microbiol 57:629-39. 2005..The accumulated data clearly indicate that a novel ubiquitous signalling system in bacteria has been discovered...
The flagellar sigma factor FliA regulates adhesion and invasion of Crohn disease-associated Escherichia coli via a cyclic dimeric GMP-dependent pathwayLaurent Claret
université Clermont 1, Pathogenie Bacterienne Intestinale, Institut National de la Recherche Agronomique, Unité Sous Contrat 2018 USC INRA 2018, Clermont Ferrand F 63001, France
J Biol Chem 282:33275-83. 2007..These findings show that in the AIEC strain LF82, FliA is a key regulatory component linking flagellar and type 1 pili synthesis and that its effect on type 1 pili is mediated, at least in part, via a c-di-GMP-dependent pathway...
