Table 1. Fraction of functional regions covered by constrained elements on a nucleotide level.
| Annotation | % Coverage by CEs |
| Exons | 84.6% |
| Introns | 6.9% |
| UTR5′ | 23.7% |
| UTR3′ | 33.9% |
| ncRNA | 10.1% |
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.