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Scanning tunneling microscopic images show a laminated structure for glycogen molecules
Author(s) -
Yang Xiuru,
Miller Marcia A.,
Yang Rui,
Evans D. Fennell,
Edstrom Ronald D.
Publication year - 1990
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.4.13.2210158
Subject(s) - scanning tunneling microscope , ellipsoid , laminar flow , molecule , glycogen , chemistry , materials science , crystallography , chemical physics , nanotechnology , physics , biochemistry , mechanics , organic chemistry , astronomy
Scanning tunneling microscopy (STM) has been used to examine glycogen molecules. Individual molecules were approximately ellipsoidal with dimensions in the 20‐ to 60‐nm range. Images of the glycogen molecular surfaces have a laminar appearance. The layered features seen on the surfaces of the molecules suggest that glycogen may grow from one edge as a laminar structure to form an ellipsoid rather than originating at a central point with radial growth of the oligosaccharide chains to form a sphere. The results of these studies indicate that STM can be used to determine details of polysaccharide structures.— Y ang , X.; M iller , M. A.; Y ang , R.; E vans , D. F.; E dstrom , R. D. Scanning tunneling microscopic images show a laminated structure for glycogen molecules. FASEB J. 4: 3140‐3143; 1990.