1DZH:
reference: The conformational activation of antithrombin. A 2.85-A structure of a fluorescein derivative reveals an electrostatic link between the hinge and heparin binding regions., Huntington JA, McCoy A, Belzar KJ, Pei XY, Gettins PG, Carrell RW, J Biol Chem 2000 May 19;275(20):15377-83. PMID: 10809774

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