Results 171 to 180 of about 169,327 (261)

In Salmonella Typhimurium, YiiD Modulates cAMP Levels in Lag Phase During Growth on Succinate

open access: yesMolecular Microbiology, EarlyView.
The YiiD enzyme, found by others to perform a redundant role in fatty acid biosynthesis, is found to be unexpectedly required for the early increase in cAMP in lag phase during growth on succinate. This intriguing finding suggests a mechanistic link may exist between fatty acid biosynthesis and catabolite repression. ABSTRACT In Salmonella Typhimurium (
John A. Ciemniecki   +2 more
wiley   +1 more source

Regulation of the Yersinia pseudotuberculosis Type III Secretion System by the CpxAR Two‐Component System

open access: yesMolecular Microbiology, EarlyView.
Host tissue cues including temperature, oxygen, and iron availability regulate expression of the Yersinia type III secretion system (T3SS) master regulator LcrF. We found that CpxR inhibits LcrF through an indirect, multi‐factorial mechanism and identified the osmolarity‐sensing OmpR/EnvZ system as an additional regulator of LcrF, highlighting ...
Karen Hug   +8 more
wiley   +1 more source

Protein STM3547 From Salmonella typhimurium Is a Phosphofructose Kinase B‐Type Enzyme With Ribose Kinase Activity

open access: yesMolecular Microbiology, EarlyView.
The metabolism of ribose starts with the phosphorylation of its 5′ hydroxyl group. Salmonella typhimurium has two kinases that perform this function, namely ribose rinase (RbsK) and deoxyribose kinase (DeoK). Here we report a new ribose kinase that we named RikA. The illustration was partially created in BioRender.
Regan D. McCormick   +2 more
wiley   +1 more source

To Move or Not to Move: When and How Bacteria Suppress Flagellar Motility

open access: yesMolecular Microbiology, EarlyView.
Motility cessation in bacteria is a key regulatory strategy that provides multiple survival advantages including enhanced community cooperation, niche adaptation and evasion of host immune responses. This process is controlled by associated mechanisms such as post‐translational modifications and second messenger signalling that stabilise non‐motile ...
Fatemeh Mohagegh   +2 more
wiley   +1 more source

Chain‐Length Regulation by WzzE Is Necessary for, but Genetically Separable From, Cyclic Enterobacterial Common Antigen Synthesis

open access: yesMolecular Microbiology, EarlyView.
Here, we demonstrate that polysaccharide chain length regulation plays a distinct role in enabling formation of a cyclic molecule important for the bacterial cell surface. However, this function is necessary, but not sufficient for the cyclic molecule's biosynthesis.
Joseph F. Carr   +4 more
wiley   +1 more source

Comparative efficacy and studies of mode of action of minerals from diatoms against three species of filth flies

open access: yesMedical and Veterinary Entomology, EarlyView.
Mortality for diatomaceous earth was observed as early as 2 h after exposure with 50% and 90% mortality at 3.5 and 4.6 h (LT50 and LT90, respectively) for Musca domestica. The LT50 and LT90 increased when the size of the fly species increased (M. domestica to Cochliomyia macellaria to Sarcophaga bullata) and increased for all three from 50 to 70 ...
Grayson L. Cave   +4 more
wiley   +1 more source

Association between precipitation events, drought, and animal operations with Salmonella infections in the Southwest US, 2009-2021. [PDF]

open access: yesOne Health
Austhof E   +7 more
europepmc   +1 more source

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