#Id: 7711
                                                        #Unit 1. Molecules and their Interaction Relevant to Biology
                                                                                                                         α-Turn
Contains hydrophilic amino acids and protrudes outside the protein surface like a hook.
Consists of 5 amino acids, generally termed as i, i+1, i+2, i+3 and i+4
H-bond is seen between i and i+4 (First and Fifth residue)
The conformation of i+1, i+2 and i+3 are crucial and on the basis of this, they are classified into
9 groups