نتایج جستجو برای: mycobacterium smegmatis
تعداد نتایج: 46326 فیلتر نتایج به سال:
The ftsZ gene of Mycobacterium tuberculosis H37Rv has been characterized as the first step in determining the molecular events involved in the cell division process in mycobacteria. Western analysis revealed that intracellular levels of FtsZ are growth phase dependent in both M. tuberculosis and Mycobacterium smegmatis. Unregulated expression of M. tuberculosis ftsZ from constitutive hsp60 and ...
New and better drugs are needed for tuberculosis (TB), particularly for the multi-drug resistant (MDR) disease. However, the highly infectious nature of MDR Mycobacterium tuberculosis restricts its use for large scale screening of probable drug candidates. We have evaluated the potential of a screen based on a 'fast grower' mycobacterium to shortlist compounds which could be active against MDR ...
BACKGROUND The unique cell wall of bacteria of the suborder Corynebacterineae is essential for the growth and survival of significant human pathogens including Mycobacterium tuberculosis and Mycobacterium leprae. Drug resistance in mycobacteria is an increasingly common development, making identification of new antimicrobials a priority. Recent studies have revealed potent anti-mycobacterial co...
We report on an experiment and calculations that determine the thermal motion of a voltage-clamped single-stranded DNA-NeutrAvidin complex in a Mycobacterium smegmatis porin A nanopore. The electric force and diffusion constant of DNA inside a Mycobacterium smegmatis porin A pore were determined to evaluate the thermal position fluctuations of DNA. We show that an out-of-equilibrium state retur...
We demonstrate that Mycobacterium tuberculosis GroEL1 is phosphorylated by PknF at two positions, Thr25 and Thr54. Unexpectedly, Mycobacterium smegmatis GroEL1 is not a substrate of its cognate PknF. This study shows that the phosphorylation profiles of conserved proteins are species dependent and provide insights that may explain the numerous biological functions of these important proteins.
In this report we demonstrate the utility of an monoclonal antibody inhibition enzyme-linked immunosorbent assay based on the Mycobacterium leprae 35-kDa protein, purified from the rapidly growing host Mycobacterium smegmatis, for the serodiagnosis of multibacillary leprosy. The assay proved highly specific (97.5%) and sensitive (90%) and compared favorably with two other established methods ro...
Genome analyses of a large number of mycobacteriophages, bacterial viruses that infect members of the genus Mycobacterium, yielded novel enzymes and tools for the genetic manipulation of mycobacteria. We report here the complete genome sequences of nine mycobacteriophages, including a new singleton, isolated using Mycobacterium smegmatis mc(2)155 as a host strain.
Mycobacteriophage Cabrinians is a newly isolated phage capable of infecting both Mycobacterium phlei and Mycobacterium smegmatis and was recovered from a soil sample in New York City, NY. Cabrinians has a genome length of 56,669 bp, encodes 101 predicted proteins, and is a member of mycobacteriophages in cluster F.
Quinolones, coumarins, cyclothialidines, CcdB and microcin B17 inhibit DNA gyrase. Information regarding these various inhibitors comes from studies performed with the enzyme from Escherichia coli, and subsequent analyses have also primarily been confined to this system. We have carried out a detailed analysis of the effect of various groups of inhibitors on Mycobacterium smegmatis gyrase and d...
Correction: Cyclic Amp-Dependent Resuscitation of Dormant Mycobacteria by Exogenous Free Fatty Acids
One third of the world population carries a latent tuberculosis (TB) infection, which may reactivate leading to active disease. Although TB latency has been known for many years it remains poorly understood. In particular, substances of host origin, which may induce the resuscitation of dormant mycobacteria, have not yet been described. In vitro models of dormant ("non-culturable") cells of Myc...
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