PRACTICE5

Pt.1   Hydrogen bonds which affect protein skeleton

the hydrogen bonds contact between the main chains on helixes

the hydrogen bonds on main chains of helixes

the hydrogen bonds contact between the main chains on sheets

the hydrogen bonds on main chains of sheets



Pt.2   Hydrogen bonds which contact between the side chains of protein

the hydrogen bonds contact between the side chains on helixes

the hydrogen bonds on side chains of helixes

the hydrogen bonds contact between the side chains on sheets

the hydrogen bonds on side chains of sheets



Pt.3   The existence of salt bridges

salt bridges

The only salt bridge on the sheet



Pt.4   The existence of disulphide bond

db

We could use "S" button to exemine if any disulphide bond exits, but none of them had been pointed out after the "S" of execution.

cys

As the requirement of practice, we showed the positions of all cysteine on the protein here.



Pt.5   The existence of stacking

π–π

The only stacking is the π–π stacking on the PPY-501