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pro vyhledávání: '"Karen S. Jakes"'
Autor:
Karen S. Jakes
Publikováno v:
Molecular Microbiology. 92:435-439
The mechanisms by which colicins, protein toxins produced by Escherichia coli, kill other E. coli, have become much better understood in recent years. Most colicins initially bind to an outer membrane protein receptor, and then search for a separate
Autor:
Karen S. Jakes
Publikováno v:
Journal of bacteriology. 199(1)
Colicins are protein toxins made by Escherichia coli to kill related bacteria that compete for scarce resources. All colicins must cross the target cell outer membrane in order to reach their intracellular targets. Normally, the first step in the int
Autor:
Karen S. Jakes
Publikováno v:
Biochemical Society Transactions. 40:1443-1448
Of the steps involved in the killing of Escherichia coli by colicins, binding to a specific outer-membrane receptor was the best understood and earliest characterized. Receptor binding was believed to be an indispensable step in colicin intoxication,
Publikováno v:
Biochemistry. 51:6753-6759
TonB-dependent transporters (TBDTs), which transport iron-chelating siderophores and vitamin B12 across the outer membrane of gram negative bacteria, share a conserved architecture of a 22-stranded beta-barrel with an amino-terminal plug domain occlu
Publikováno v:
The Journal of General Physiology
Anthrax toxin consists of three proteins: lethal factor (LF), edema factor (EF), and protective antigen (PA). This last forms a heptameric channel, (PA63)7, in the host cell’s endosomal membrane, allowing the former two (which are enzymes) to be tr
Autor:
Karen S. Jakes, Alan Finkelstein
Publikováno v:
Molecular Microbiology. 75:567-578
Colicin Ia, a channel-forming bactericidal protein, uses the outer membrane protein, Cir, as its primary receptor. To kill E. coli, it must cross this membrane. The crystal structure of Ia receptor-binding domain bound to Cir, a 22-stranded plugged
Publikováno v:
The Journal of General Physiology
Colicin Ia is a bactericidal protein of 626 amino acid residues that kills its target cell by forming a channel in the inner membrane; it can also form voltage-dependent channels in planar lipid bilayer membranes. The channel-forming activity resides
Structure of colicin I receptor bound to the R-domain of colicin Ia: implications for protein import
Autor:
Paul K. Kienker, Lothar Esser, Petra Lukacik, Travis J. Barnard, Susan K. Buchanan, Sylvestre Grizot, Rodolfo Ghirlando, Karen S. Jakes, Maruf M.U. Ali
Publikováno v:
The EMBO Journal. 26:2594-2604
Colicin Ia is a 69 kDa protein that kills susceptible Escherichia coli cells by binding to a specific receptor in the outer membrane, colicin I receptor (70 kDa), and subsequently translocating its channel forming domain across the periplasmic space,
Publikováno v:
The Journal of General Physiology
The bacterial toxin colicin Ia forms voltage-gated channels in planar lipid bilayers. The toxin consists of three domains, with the carboxy-terminal domain (C-domain) responsible for channel formation. The C-domain contributes four membrane-spanning
Publikováno v:
The Journal of Physical Chemistry B. 106:7355-7364
We demonstrate the use of Lee-Goldburg cross-polarization (LG-CP) NMR under fast magic-angle spinning (MAS) to investigate the amplitude and geometry of segmental motions in biomolecular and polymeric solids. Motional geometry information was previou