The Saturation Curve for Aspartyl Transcarbamylase Has a Similar Shape

Question

The saturation curve for aspartyl transcarbamylase has a similar shape to the curve for:
A) Myoglobin
B) Hemoglobin
C) Chymotrypsin
D) Both hemoglobin and chymotrypsin.
E) All of these.

Accepted Answer

The saturation curve for aspartyl transcarbamylase (ATCase) and hemoglobin both exhibit sigmoidal curves, indicating cooperative binding of substrate or oxygen, respectively. Chymotrypsin and myoglobin have hyperbolic and rectangular hyperbolic saturation curves, respectively, indicating non-cooperative binding.