Assertion: silk | /r/MadeOf | two parts
Facets:
value: generally
type: DEGREE
Source sentences:
text: Silks derived from Bombyx mori are generally made of two parts: the silk fibroin fiber which contains a light chain of 25kDa and a heavy chain of 350kDa (or 390kDa) linked by a single disulfide bond and a glue-like protein, sericin, comprising 25 to 30 percentage by weight.