An enzyme involved in cancer and aging gets a close-up
Understanding what telomerase looks like could guide therapies for cancer, other illnesses
![telomerase](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/05/050218_AC_telomerase_feat.jpg?fit=860%2C460&ssl=1)
HANDY ADD Telomerase (bottom structure), a complex of proteins and RNA, adds DNA to telomeres (green caps), the ends of chromosomes (blue X’s). The telomeres shorten when cells divide.
Janet Iwasa