Merge pull request #4511 from RosettaCommons/yingyue0414-patch-ketohexopyranosyl
Add Ketohexopyranosyls to Database
This pull request is expected to
add all ketohexopyranosyl residues (as well as the common modified ones) to database.
add stereochemistry data of ketohexopyranosyl residues and include all ketohexopyranosyl residues in stereochem_test
Since the anomeric carbon (in this case C2) has a hydroxymethyl group (C1, O1), the alpha- and beta-ketohexopyranosyls are expected to be in different chair forms. In most cases:
**alpha: 4C1
beta: 1C4**
This means that the .params files of alpha/beta-ketohexopyranosyls cannot be converted and created through bulk generation script.
The bond angles and torsions are assumed to be the same as the standard bond angles and torsions of aldohexopyranoses.