Difference between revisions of "Part:BBa K525221"
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S-layer proteins can be used as scaffold for nanobiotechnological applications and devices by e.g. fusing the S-layer's self-assembly domain to other functional protein domains. It is possible to coat surfaces and liposomes with S-layers. A big advantage of S-layers: after expressing in ''E. coli'' and purification, the nanobiotechnological system is cell-free. This enhances the biological security of a device.  
 
S-layer proteins can be used as scaffold for nanobiotechnological applications and devices by e.g. fusing the S-layer's self-assembly domain to other functional protein domains. It is possible to coat surfaces and liposomes with S-layers. A big advantage of S-layers: after expressing in ''E. coli'' and purification, the nanobiotechnological system is cell-free. This enhances the biological security of a device.  
  
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This fluorescent S-layer fusion protein is used to characterize purification methods and the S-layer's ability to self-assemble on surfaces.
 
  
  

Revision as of 21:42, 21 September 2011

S-layer cspB from Corynebacterium halotolerans with TAT-Sequence and lipid anchor, PT7 and RBS

S-layers (crystalline bacterial surface layer) are crystal-like layers consisting of multiple protein monomers and can be found in various (archae-)bacteria. They constitute the outermost part of the cell wall. Especially their ability for self-assembly into distinct geometries is of scientific interest. At phase boundaries, in solutions and on a variety of surfaces they form different lattice structures. The geometry and arrangement is determined by the C-terminal self assembly-domain, which is specific for each S-layer protein. The most common lattice geometries are oblique, square and hexagonal. By modifying the characteristics of the S-layer through combination with functional groups and protein domains as well as their defined position and orientation to eachother (determined by the S-layer geometry) it is possible to realize various practical applications ([http://onlinelibrary.wiley.com/doi/10.1111/j.1574-6968.2006.00573.x/full Sleytr et al., 2007]).


Usage and Biology

S-layer proteins can be used as scaffold for nanobiotechnological applications and devices by e.g. fusing the S-layer's self-assembly domain to other functional protein domains. It is possible to coat surfaces and liposomes with S-layers. A big advantage of S-layers: after expressing in E. coli and purification, the nanobiotechnological system is cell-free. This enhances the biological security of a device.



Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    COMPATIBLE WITH RFC[12]
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal BglII site found at 1191
    Illegal XhoI site found at 647
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    INCOMPATIBLE WITH RFC[25]
    Illegal NgoMIV site found at 314
    Illegal NgoMIV site found at 1403
    Illegal NgoMIV site found at 1514
    Illegal AgeI site found at 89
    Illegal AgeI site found at 305
    Illegal AgeI site found at 546
    Illegal AgeI site found at 593
  • 1000
    INCOMPATIBLE WITH RFC[1000]
    Illegal BsaI site found at 995
    Illegal BsaI.rc site found at 302
    Illegal BsaI.rc site found at 680
    Illegal BsaI.rc site found at 1082