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.
Schematic showing the locations of the N- and C-termini for wild-type streptavidin, CP49/48 and CP50/49. N-termini are shown in blue and C-termini in red. The flexible binding-loop residues are shown in black. Linker residues in the circularly permuted mutants are shown in green.
