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.
Substrate selectivity of T. brucei TK (black bars), human TK1 (white bars), and T. brucei TK domain 2 (hatched bars). Experiments were performed with 10 mm deoxynucleosides (A) or 0.5 mm deoxyinosine (B). Enzyme activities are shown as a percentage of the activity observed with 10 mm thymidine. All experiments were performed in duplicate, with the S.D. values shown by error bars.
