passages.id: 1.0alpha7.train.519.sent
passages.type: sentence
passages.text:  The dissociation equilibrium constant (  Kd) for  profilin binding  actin was determined from the dependence of  k 1 on  profilin concentration (Figure  5, A and B).  
coreferences.id: 1.0alpha7.train.519.coref0
coreferences.entity_ids: 1.0alpha7.train.519.ent0_0
coreferences.id: 1.0alpha7.train.519.coref1
coreferences.entity_ids: 1.0alpha7.train.519.ent1_0 1.0alpha7.train.519.ent2_1