The name comes from the term used to designate the C-1 carbon of a pyranose, the " anomeric " carbon.
12.
It was determined that the pyranose ring is puckered, to allow all of the carbon atoms of the ring to have close to the ideal tetrahedral geometry.
13.
The N-terminal cysteine-rich domain is " N "-Acetylgalactosamine and galactose residues sulphated at positions 3 and 4 of their pyranose rings.
14.
That is also an exception that you can write into a rule . . if the pyranose form is reasonably stable, then draw that one, otherwise draw the normal form.
15.
This enzyme requires FAD . A number of aldoses and ketoses in pyranose form, as well as glycosides, gluco-oligosaccharides, sucrose and lactose can act as a donor.
16.
Furthermore, a tetrahydropyran " ring system ", i . e ., five carbon atoms and an oxygen, is the core of pyranose sugars, such as glucose.
17.
I think we could say on a subpage : Here are the standard forms; if not listed, then use the pyranose by default, but another form if that is the commonly accepted term
18.
For any single stereoisomer ( there are two enantiomers ), the straight-chain form and the various closed-ring pyranose and furanose forms can easily and rapidly interconvert when dissolved in water.
19.
The reaction between C-1 and C-5 creates a molecule with a six-membered ring, called pyranose, after the cyclic ether pyran, the simplest molecule with the same carbon-oxygen ring.
20.
A further refinement to the conformation of pyranose rings came when Sponsler and Dore ( 1926 ) realized that Sachse s mathematical treatment of six-membered rings could be applied to their X-ray structure of cellulose.
