Crystalline bacterial cell surface layers
Uwe Bernd Sleytr
Springer-Verlag, 1988 - Medical - 193 pages
Crystalline surface layers (S-layers) represent an almost universal feature of archaebacterial cell envelopes and can be found in gram-positive and gram-negative eubacterial species from nearly all phylogenetic branches. S-layers consist of a single protein- or glycoprotein species and thus can be considered as one of the most primitive membrane structures developed during evolution. Prokaryotes carrying S-layers are ubiquitously found in every part of the biosphere. This supports the concept of a general supramolecular "porous crystalline surface layer" fulfilling a broad spectrum of functions which are strongly dependent on the particular environmental and ecological conditions. Their structural simplicity makes S-layers a suitable model for analyzing structure-function relationships as well as dynamic aspects of membrane morphogenesis.
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A-protein Aeromonas salmonicida amino acid anaerobic Arch Microbiol archaebacteria Bacillus brevis Bacillus stearothermophilus bacteria bacterial cell Bacteriol Bacteroides Baumeister Beveridge TJ buccae cell envelope cell surface cell wall cell wall protein characterization Clostridium correlation averaging Deinococcus radiodurans electron microscopy Engelhardt eubacteria freeze-etched gene glycoprotein H H H Haapasalo Halobacterium heparinolyticus hexagonal hydrophila isolated Kandler Kay WW Kerosuo Lechner Lounatmaa lshiguro EE lsolation Messner Methanospirillum Methanothermus Methanothrix micrographs molecular weight murein Murray RGE negatively stained outer membrane pattern peptide polypeptide punctate layer reconstruction S-layer S-layer lattices S-layer protein Saxton sequence sheath Sleytr UB species Sprott Stetter subunits Sulfolobus Sumper surface protein symmetry tetragonal thermophilic Thermoproteus Three-dimensional structure Trust TJ ultrafiltration membranes Ultrastructure unit cell virulence Wieland F