. "US" . "Protein Sci." . "PRCIEI" . "0795" . "0961-8368" . "1" . "426" . "471" . . "The refined 1.9-A X-ray crystal structure of D-Phe-Pro-Arg chloromethylketone-inhibited human alpha-thrombin: structure analysis, overall structure, electrostatic properties, detailed active-site geometry, and structure-function relationships." . . . .