203 160 160 4 4 E. M. Tul'skaya G. M. Streshinskaya I. B. Naumova A. S. Shashkov L. P. Terekhova Department of Biology Moscow State University Moscow Russia N. D. Zelinsky Institute of Organic Chemistry RAN Moscow, Leninsky Prospect, 47 117334 Moscow Russia Institute for New Antibiotics Academy of Medical Sciences Moscow Russia Abstract The cell-wall teichoic acids of Nocardiopsis dassonvillei IMRU 509 T , IMRU 504 and IMRU 1250 and Nocardiopsis antarctius VKM Ac-836 T have the same unique structure that has not heretofore been found in bacteria. The polymer is built of 10 to 13 repeating units: The structure has been established by chemical analysis and with NMR spectroscopy. A study of the cell-wall monosaccharide composition, peptidoglycan, and cell phospholipids also provides evidence for the close similarity of these two species.
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