Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Calcium‐binding folds. Calcium ions are drawn as magenta spheres. (A) A pair of calcium‐binding EF‐hands (red and orange respectively) complexed with Ca2+ from bovine calbindin D9K. The corresponding helices are labeled E, F, E′, and F′ (PDB entry 4icb). (B) Calcium‐binding domain of annexin V (PDB entry 1ala).
