Alpha Helix
A common motif in the secondary structure of proteins, the alpha helix (α-helix) is a right-handed coiled or spiral conformation (helix), in which every backbone N-H group donates a hydrogen bond to the backbone C=O group of the amino acid four residues earlier ( hydrogen bonding). This secondary structure is also sometimes called a classic Pauling–Corey–Branson alpha helix (see below). Among types of local structure in proteins, the α-helix is the most regular and the most predictable from sequence, as well as the most prevalent.
Read more about Alpha Helix: Historical Development, Experimental Determination, Amino-acid Propensities, Dipole Moment, Coiled-coils, Larger-scale Assemblies, Dynamical Features, Helix-coil Transition, The α-helix in Art
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