3-DIMENSIONAL STRUCTURE OF THE SURFACE-LAYER OF WOLINELLA-RECTA

被引:10
作者
DOKLAND, T
OLSEN, I
FARRANTS, G
JOHANSEN, BV
机构
[1] Emu for Biological Sciences, University of Oslo
[2] Inst. of Microbiology, Dental Faculty, University of Oslo
[3] Laboratory for Experimental Pathology and Image Analysis, Norwegian Radium Hospital, Inst. for Cancer Research
[4] Dept. of Methodology, National Inst. of Public Health, Oslo
来源
ORAL MICROBIOLOGY AND IMMUNOLOGY | 1990年 / 5卷 / 03期
关键词
3‐dimensional reconstruction; surface layer; Wolinella recta;
D O I
10.1111/j.1399-302X.1990.tb00415.x
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
The three‐dimensional structure of the crystalline surface layer (S‐layer) of Wolinella recta ATCC 33238T, a gram‐negative, anaerobic periodontopathogen, was determined to 3.8 nm resolution by electron microscopy and digital image processing. The S‐layer protein is closely associated with the outer bacterial membrane, and shows p6 symmetry with lattice spacing and thickness of 21 nm and 15 nm, respectively. The funnel‐shaped subunits consist of 6 heavy domains located round a common base at the sixfold axis, and communicate with the adjacent subunits through a lighter domain at the threefold axis (M6C3 arrangement). Copyright © 1990, Wiley Blackwell. All rights reserved
引用
收藏
页码:162 / 165
页数:4
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