An official website of the United States government
Here's how you know
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.
Physical and restriction map of the 5-kb insertion from pHPAD. Fragments that were subcloned in pTZ19R are shown, and the corresponding PAD activities are indicated on the right. Restriction sites in parentheses belong to the multicloning site of the vectors.