Three-dimensional structure of the tetragonal surface layer of Sporosarcina ureae
نویسندگان
چکیده
منابع مشابه
Structure of the regular surface layer of Sporosarcina ureae.
Optical diffraction and computer image processing of electron micrographs were employed to analyze the structure of the regular surface layer of Sporosarcina ureae at high resolution. Negatively stained preparations of regular surface layer fragments showed two types of tetragonal pattern, each having p4 symmetry in projection with a = 12.8 nm. Although the two patterns differed greatly in over...
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Thin sections of the cell wall of Sporosarcina ureae revealed two structurally distinct layers: a continuous amorphous zone, approximately 15 nm thick, which was adjacent to the plasma membrane, and an overlying periodic zone, approximately 16 nm thick. Sequential Triton X-100 and lysozyme treatment of isolated walls produced small fragments of the outer regular structure which allowed high-res...
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Fragments of the Azotobacter vinelandii tetragonal surface (S) layer, free of outer membrane material, were obtained by treating whole cells with 100 microM EDTA. The three-dimensional structure of the S layer was reconstructed from tilted-view electron micrographs of the S-layer fragments, after computer-assisted image processing by correlation averaging. At a resolution of 1.7 nm, the S layer...
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15 صفحه اولElectron Microscopy of Ultrathin Sections of Sporosarcina ureae.
Mazanec, K. (J. E. Purkyne University, Brno, Czechoslovakia), M. Kocur, and T. Martinec. Electron microscopy of ultrathin sections of Sporosarcina ureae. J. Bacteriol. 90:808-816. 1965.-Ultrathin sections of Sporosarcina ureae cells were studied by means of electron microscopy. The cell wall consists of several layers and is 340 A thick. The cytoplasm is of globular structure and includes ribos...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1986
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.168.1.309-317.1986