Assertion: cell wall's protein | /r/HasProperty | extracted to heat-treated walls
Facets:
value: from growing walls
type: TRANSITIVE-OBJECT
Source sentences:
text: Evidence for the enzyme involvement includes: (1) when primary walls are heated or treated with protein denaturing agents they can't be "loosened" by acid; and (2) adding proteins extracted from growing walls to heat-treated walls restores the acid response.