2. Initialism. Abbreviated Line-Up. ¹
3. Initialism. aluminium. ¹
¹ Source: wiktionary.com
Medical Definition of Alu
1. 1. Type II restriction endonuclease, isolated from Arthrobacter luteus. The recognition sequence is 5' AG/CT 3'. 2. Alu sequences are highly repetitive sequences found in large numbers 100-500,000) in the human genome and that are cleaved more than once within each sequence by the Alu endonuclease. The Alu sequences look like DNA copies of mRNA because they have a 3' poly A tail and flanking repeats. This entry appears with permission from the Dictionary of Cell and Molecular Biology (22 Feb 2008)