نتایج جستجو برای: periplasmic expression
تعداد نتایج: 875217 فیلتر نتایج به سال:
According to x-ray structure, the lactose permease (LacY) is a monomer organized into N- and C-terminal six-helix bundles that form a deep internal cavity open on the cytoplasmic side with a single sugar-binding site at the apex. The periplasmic side of the molecule is closed. During sugar/H(+) symport, a cavity facing the periplasmic side is thought to open with closure of the inward-facing cy...
This study examined the role of the periplasmic oxidative defense proteins, copper, zinc superoxide dismutase (SodC), and thiol peroxidase (Tpx), from the Shiga toxin-producing Escherichia coli O157:H7 (STEC) in the formation of biofilms. Proteomic analyses have shown significantly higher expression levels of both periplasmic antioxidant systems (SodC and Tpx) in STEC cells grown under biofilm ...
Despite the mammalian host actively sequestering iron to limit pathogenicity, heme (or hemin when oxidized) and hemoproteins serve as important sources of iron for many bloodborne pathogens. The HmuRSTUV hemin uptake system allows Yersinia species to uptake and utilize hemin and hemoproteins as iron sources. HmuR is a TonB-dependent outer membrane receptor for hemin and hemoproteins. HmuTUV com...
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