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.
Cells isolated from Mkk3 (−/−) mice do not express the MKK3 protein kinase. Wild-type (+/+) and Mkk3 (−/−) MEF were prepared, and extracts (30 μg) were examined by protein immunoblot analysis by using antibodies to MKK3, MKK4, MKK6, JNK, and p38 MAP kinase. Open arrows indicate the migration of the protein kinases. Solid arrows indicate the migration of molecular mass standards (kDa).
