1. c.37.1 P-loop containing nucleoside triphosphate hydrolases division into families based on beta-sheet topologies ! P-loop containing nucleoside triphosphate hydrolases 3 layers: a/b/a, parallel or mixed beta-sheets of variable sizes 1cke d1ckea_ A:6-12,17-30,31-36,68-75,125-130
2fem A:6-12,17-30,31-36,68-75,125-130