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Gel shift assay of binding of all (CR)x fragments to cleaved PAI-1. Shown are 8% non-denaturing polyacrylamide gels for binding of (CR)2 species (A) and (CR)3 species (B) to rccPAI-1. Each (CR)x species is shown alone and in a 1:1 complex with rccPAI-1. Cleaved PAI-1 is shown in the leftmost lane of each gel.
