3.4.21.109 | purified recombinant refolded His-tagged matriptase catalytic domain in complex with benzamidine, 2-Nas-Phe(3-Am)-4-(2-guanidinoethyl)piperidide, and 4-([1-[(2S)-3-(3-carbamimidoylphenyl)-2-([[2,4,6-tris(1-methylethyl)phenyl]sulfonyl]amino)propanoyl]piperidin-4-yl]carbonyl)piperidine-1-carboximidamide, hanging drop vapor diffusion method, 18°C, 5 mg/mL matriptase, from 10 mM benzamidine, 0.1 M Tris-HCl, pH 8.5, 20% PEG 8000, and 200 mM MgCl2, X-ray diffraction structure determination and analysis at 2.1-2.2 A resolution |