Team:Bielefeld-Germany/Project/Background/S-Layer

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(S-layer)
(S-layers in general)
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=S-layer=
=S-layer=
==S-layers in general==
==S-layers in general==
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Molecular nanotechnology, especially nanobiotechnology starts to use and modify functionalize surfaces. Especially the immobilization of self-assembling biomolecules draws an increasing attention. The advantages of using immobilized enzymes in well-defined positions on nano-structured surfaces may even be greater. Self-assembly is an organization of molecules into defined structures, lowering the free energy of the system. Interaction between the molecules is non-covalent (e.g. hydrophobic-hydrophobic, van der Waals forces, molecular stacking) ([http://onlinelibrary.wiley.com/doi/10.1002/smll.200700200/abstract Schäffer ''et al.'', 2007])
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Molecular nanotechnology, especially nanobiotechnology starts to use and modify functionalize surfaces. Especially the immobilization of self-assembling biomolecules draws an increasing attention. The advantages of using immobilized enzymes in well-defined positions on nano-structured surfaces may even be greater. Self-assembly is an organization of molecules into defined structures, lowering the free energy of the system. Interaction between the molecules is non-covalent (''e.g.'' hydrophobic-hydrophobic, van der Waals forces, molecular stacking) ([http://onlinelibrary.wiley.com/doi/10.1002/smll.200700200/abstract Schäffer ''et al.'', 2007]).
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Many biomolecules such as protein, polysaccharides and lipid have the ability to self-assemble into different shapes (''e.g.'' spherical, rod- or sheet-like shapes), allowing several specific functions as virus capsids, cytoskeleton components or extracellular surface layer protein.
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The so-called paracrystalline cell surface-layers (S-layers) are build up on S-layer proteins  and are one of the most common surface structures in Bacteria and Archaea. They are regarded as the outmost cell envelope of prokaryotic organisms ([http://onlinelibrary.wiley.com/doi/10.1111/j.1574-6968.2006.00573.x/full Sleytr ''et al.'', 2007]).

Revision as of 13:58, 20 September 2011

S-layer

S-layers in general

Molecular nanotechnology, especially nanobiotechnology starts to use and modify functionalize surfaces. Especially the immobilization of self-assembling biomolecules draws an increasing attention. The advantages of using immobilized enzymes in well-defined positions on nano-structured surfaces may even be greater. Self-assembly is an organization of molecules into defined structures, lowering the free energy of the system. Interaction between the molecules is non-covalent (e.g. hydrophobic-hydrophobic, van der Waals forces, molecular stacking) ([http://onlinelibrary.wiley.com/doi/10.1002/smll.200700200/abstract Schäffer et al., 2007]).


Many biomolecules such as protein, polysaccharides and lipid have the ability to self-assemble into different shapes (e.g. spherical, rod- or sheet-like shapes), allowing several specific functions as virus capsids, cytoskeleton components or extracellular surface layer protein. The so-called paracrystalline cell surface-layers (S-layers) are build up on S-layer proteins and are one of the most common surface structures in Bacteria and Archaea. They are regarded as the outmost cell envelope of prokaryotic organisms ([http://onlinelibrary.wiley.com/doi/10.1111/j.1574-6968.2006.00573.x/full Sleytr et al., 2007]).