Cre recombinase. Cre recombinase is a tyrosine recombinase enzyme derived from the P1 Bacteriophage. The enzyme uses a topoisomerase I like mechanism to carry out site specific recombination events. The enzyme is a member of the integrase family of site specific recombinase and it is known to catalyse the site specific recombination event between two DNA recognition sites. This 34 base pair loxP recognition site consists of two 13 bp palindromic sequences which flank an 8bp spacer region. The products of Cre-med
Know Your Constitution (1): The Structure of Government. Constitutional Education for Citizens. United States citizens, in my view, have an obligation to understand their government, the Constitution that created it and the Supreme Courtâs role in interpreting the Constitution.
Our Constitution is the oldest written constitution in the world. As you grow older, you will have the right under the Constitution to vote, to serve on juries, to run for political office and to participate in government in other ways. So get ready: Study the Constitution. Remember, the Framers designed the Constitution for you -- but you have to make it work. Chief Justice John Roberts