The ribosome (/ËraÉªbÉµËzoÊm/) is a large and complex molecular machine, found within all living cells, that serves as the site of biological protein synthesis (translation). Ribosomes link amino acids together in the order specified by messenger RNA (mRNA) molecules.Ribosomes consist of two major components: the small ribosomal subunit, which reads the RNA, and the large subunit, which joins amino acids to form a polypeptide chain.Each subunit is composed of one or more ribosomal RNA (rRNA) molecules and a variety of proteins.ffinity label for the tRNA binding sites on the E. coli ribosome allowed the identification of A and P site proteins most likely associated with the peptidyltransferase activity; labelled proteins are L27, L14, L15, L16, L2; at least L27 is located at the donor site, as shown by E. Collatz and A.P. Czernilofsky.
DEFINITION of 'Taft-Hartley Act'. The Taft-Hartley Act is a federal law that was enacted in 1947 that prohibited certain union practices and required improvement in union disclosure of financial and political dealings. It is an outline of the federal government's requirements for unions.
Also called the Labor Management Relations Act. Passed over President Truman's veto by a Republican-controlled Congress. Labor leaders condemned the Taft-Hartley Act as a slave-labor law..