| 1. | Glucose 6-phosphate binds to GPI in its pyranose form.
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| 2. | Both of the sugars are glucose, which is a pyranose sugar.
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| 3. | The nonplanar pyranose rings can assume either chair ( in 2 variants ) or boat conformation.
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| 4. | The pyranose form of D-glucose and its derivative D-glucuronic acid prefer the chair 4 C 1.
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| 5. | This effect was originally observed in pyranose rings by J . T . Edward in 1955 when studying carbohydrate chemistry.
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| 6. | Reaction 2 uses pyranose oxidase to oxidize the second hydroxyl of 1, 5-AG, generating hydrogen peroxide.
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| 7. | D-ribose in itself is a hemiacetal and in equilibrium with the pyranose "'3 " '.
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| 8. | With hexoses, short reactions times usually lead to furanose ring forms, and longer reaction times lead to pyranose forms.
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| 9. | Casuarictin is transformed into pedunculagin via loss of a gallate group, and further into castalagin via glucose pyranose ring opening.
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| 10. | In aqueous solution ribose is 75 % pyranose and 25 % furanose and a different acetal "'4 "'is formed.
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