Patterning the Cell's Skeleton (image) Washington University in St. Louis Caption WUSTL scientists are using a model system in which the internal skeleton of a cell (its cytoskeleton) is tagged with fluorescent green and cherry red dyes to learn why some skeletons are patterned (left) and others are disorganized (right). They have learned that cells missing the enzyme katanin, named for the katana, or samurai sword, creates and maintains coaligned patterns by cutting microtubles at crossover junctions. Credit DIXIT LAB Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.