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Identification of 2-amino-2,6-dideoxy-d-glucose (d-quinovosamine), isolated from the cell walls of the alkaliphilic Bacillus sp. Y-25, by 500-MHz 1H NMR spectroscopy

✍ Scribed by Masahiro Ito; Rikizo Aono; Koki Horikoshi


Book ID
102990329
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
506 KB
Volume
242
Category
Article
ISSN
0008-6215

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✦ Synopsis


Cell walls of alkaliphilic Bacillus strain Y-25 are composed of gamma-peptidoglycan and two acidic polymers. An amino sugar, which was a min component of one acidic polymer, did not correspond to any of the commercially available hexosamines. The amino sugar was isolated from the hydrolysate of the acidic polymer, purified, and identified as D-quinovosamine (2-amino-2,6- dideoxy-D-glucose) by 500-MHz NMR spectroscopic analysis and polarimetry.