A secondary benefit is that with proper design, the lip can be shortened from side to side and therefore filled out in the antero-posterior dimension.
In addition, more than 30 years ago Holick et al showed that shortening the side chain of vitamin D or eliminating it (producing 20-hydroxypregnacalciferol (20(OH pD), attenuates or eliminates the calcemic effect [21].
It was suggested that perhaps shortening the side chain of Leu133 might cause β-strand H of the β-barrel to move inward toward the heme.
Thus, we propose that shortening the side chain of threonine in the T678S mutant would likely widen the entrance at the lower cleft in the periplasmic domain and permit hydrocarbons more access time into the binding pocket for extrusion.
Shortening the side chain by mutating Gln42 to asparagine resulted in modest decreases in uptake and binding efficiency, while the respective reductions were greater when Gln42 was replaced with phenylalanine or leucine (Fig 3, Supplementary Table S1 and Supplementary Fig S4).
So the presence of the positively charged and long chain R153 on set 1 is accompanied by a K156A substitution that removes the positive charge and shortens the side chain at the site 156.
The I151A variant, in which isoleucine is replaced by a residue with a significantly shortened hydrophobic side chain, appears to be less able to shield the negative charge of Asp after cluster acquisition.
Then, you need to shorten the side under the left.
These measures may potentially shorten therapy, save costs, and reduce side effects of MDR-TB treatment.
Residues were generally substituted with Ala to shorten the side-chain, or with basic or acidic residues to introduce or alter side-chain charge (Supplementary file 1).
A beaming smile and a cheeky twinkle in his eye accompany most of what comic says, but he's not without side, shortening the expression "charity muggers" into "chuggers" and then into something shorter and much ruder.
