H
Ho-Ching Tiffany Tsui
Researcher at Indiana University
Publications - 42
Citations - 2863
Ho-Ching Tiffany Tsui is an academic researcher from Indiana University. The author has contributed to research in topics: Gene & FtsZ. The author has an hindex of 29, co-authored 39 publications receiving 2558 citations. Previous affiliations of Ho-Ching Tiffany Tsui include University of Texas Health Science Center at Houston.
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Journal ArticleDOI
Characterization of broadly pleiotropic phenotypes caused by an hfq insertion mutation in Escherichia coli K‐12
TL;DR: Hfq function plays a fundamental role in Escherichia coli physiology and that hfq and the hflA region are in the amiB‐mutL‐miaA‐hfq‐hflX superoperon.
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Negative regulation of mutS and mutH repair gene expression by the Hfq and RpoS global regulators of Escherichia coli K-12.
TL;DR: It is reported here that mutations in hfq and rpoS reversed the stationary-phase down-regulation of the amounts of MutS and MutH, suggesting that the levels of these proteins may be adjusted in cells subjected to different stress conditions by an RpoS-dependent mechanism.
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Depletion of the cellular amounts of the MutS and MutH methyl-directed mismatch repair proteins in stationary-phase Escherichia coli K-12 cells.
TL;DR: The findings suggest that the MDM repair capacity is repressed in nutritionally stressed bacteria and correlate with conclusions from recent studies of adaptive mutagenesis.
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Regulation of the pspA Virulence Factor and Essential pcsB Murein Biosynthetic Genes by the Phosphorylated VicR (YycF) Response Regulator in Streptococcus pneumoniae
TL;DR: Results from microarray experiments support the idea that the VicR RR exerts strong positive regulation on the transcription of a set of genes encoding important surface proteins, including the PspA virulence factor, two proteins containing LysM peptidoglycan-binding domains, and a putative membrane protein of unknown function.
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Identification of the miaB gene, involved in methylthiolation of isopentenylated A37 derivatives in the tRNA of Salmonella typhimurium and Escherichia coli.
Birgitta Esberg,Hon-Chiu Eastwood Leung,Ho-Ching Tiffany Tsui,Glenn R. Björk,Malcolm E. Winkler +4 more
TL;DR: The tRNA of the miaB2508::Tn10dCm mutant of Salmonella typhimurium is deficient in the methylthio group of the modified nucleoside N(6)-(4-hydroxyisopentenyl)-2-methylthioadenosine (ms(2)io(6)A37).