Life · life
Collagen
Structure · C, N, O, Br
- Numbers
- Roughly a third of all protein in a mammal by mass. Its tensile strength approaches that of steel wire, per unit mass.
- Kind
- Structure
Function
A rope of three chains wound together, the most abundant protein in a mammal and the tension-bearing half of bone, tendon and skin. Its network form, collagen IV, is cross-linked with bromine — the discovery that made bromine an essential element in 2014.
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