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.
stFRET in vitro calibration. (A) Rubber sheet stretching of stFRET to verify strain-dependence of the linker. The rubber sheet was coated with streptactin, and stFRET was flanked with StrepTagII. stFRET flanked by one StrepTagII as a zero force control; (B) DNA springs stretching stFRET.
