Assertion: hemoglobin's iron atom | /r/CapableOf | become attached
Facets:
value: simultaneously
type: MANNER
value: to the protein
type: TRANSITIVE-OBJECT
Source sentences:
text: The difficulty of accounting for the specificity of hemoglobin that this configuration would entail might be overcome by supposing that the iron atom becomes simultaneously attached to the protein when a ligand is bound.