3.5.3.18	A 2.18 A resolution X-ray crystal structure of the inactivated complex elucidates the orientation of the inactivator and its covalent attachment to the active site Cys	
3.5.3.18	by sitting drop vapor diffusion, at 1.08-2.0 A resolution and at pH 6.3 and pH 9.0	
3.5.3.18	N5-(1-iminopropyl)-L-ornithine:DDAH-1 complex, to 1.9 A resolution, covalent bond formation between the inhibitor’s amidino carbon and the active-site Cys274, and solution studies show reversible competitive inhibition, consistent with a reversible covalent mode of DDAH inhibition by alkylamidine inhibitors