Helix-turn-Helix
            motif

Helix-Loop-Helix motifs in Calcium-binding proteins

Two alpha-helical regions are joined by a short amino acid sequence. The larger Recognition Helix binds to the major groove of the DNA molecule. The amino sequence Asp-Asp-Asp-....Thr-Glu- binds  Ca2



Text material ©2024  by Steven M. Carr