RBMRB package has some functions to generate checmial shift histogram or chemical shift density plots directly from BMRB. Full set of pregenerated plots can be found here
plt<-chemical_shift_hist('GLY')
plt
plt<-chemical_shift_hist('GLY','CA')
plt
plt<-chemical_shift_hist('GLY',type='density')
plt
plt<-chemical_shift_hist('GLY','CA',type='density')
plt