The next most common type, the beta bulge loop, also occurs in antiparallel sheet, but one residue has the alphaL conformation, giving rise to a beta turn or alpha turn, such that the motif sometimes forms the loop of a beta hairpin.
The next most common type also occurs in antiparallel sheet. The next most common type is the beta bulge loop. The motif sometimes forms the loop of a beta hairpin. One residue has the alphaL conformation, giving rise to a beta turn or alpha turn this. A beta turn is such. Alpha turn is such.