The crystal and molecular structures of 2-amino-2-deoxy-a/fl-D-glucopyranose 3-sulfate (1) and 2-amino-2-deoxy-fl-D-glucopyranose 6-sulfate (2) have been determined by direct methods. The sugar rings have the expected 4C1 conformation and the geometries of the sulfate groups are comparable with thos
Carbohydrates with relevance to the structure of glycosaminoglycans: The crystal structures of 2-deoxy-2-(sulfoamino)-α-d-glucopyranose sodium salt dihydrate, 2-amino-2-deoxy-α,β-d-glucopyranose 3-(hydrogen sulfate) monohydrate, and 2-amino-2-deoxy-α-d-glucopyranose 6-(hydrogen sulfate) monohydrate
✍ Scribed by William H. Ojala; Kevin E. Albers; William B. Gleason; Carolyn G. Choo
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 813 KB
- Volume
- 275
- Category
- Article
- ISSN
- 0008-6215
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✦ Synopsis
The X-ray crystal structures of the glycosaminoglycan-related monosaccharides 2-deoxy-2-(sulfoamino)-a-o-glucopyranose sodium salt dihydrate, 2-amino-2-deoxy-a,fl-o-glucopyranose 3-(hydrogen sulfate) monohydrate, and 2-amino-2-deoxy-ot-D-glucopyranose 6-(hydrogen sulfate) monohydrate have been determined at 173 K. In the solid state, the 3-sulfated and 6-sulfated compounds assume the expected zwitterionic form. The 2(N)-and 6-sulfate crystal structures contain only the c~-anomers, but the 3-sulfate crystal structure includes both the a-and fl-anomers, as well as two different orientations of the hydroxymethyl group. The sodium ion in the 2(N)-sulfate structure is sixfold coordinated, with two water molecules, a sulfate oxygen, a
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The crystal structure of a-D-Manp-(1 +3)-/?-D-Manp-( 1-+4)-a-D-GlcNAcp has been determined by the direct method using the multi-solution, tangentzformula, and "magic integer" procedures. The space group is P2,, and 2 molecules are in the unit cell with c1 = 9.894 ( 5), b = 10.372 (6), c = 11.816 (6)