Feedback inhibition反馈抑制 ATCase CTP The inhibition of ATCase by CTP is an example of feedback inhibition( 馈抑制)，the inhibition of an enzyme by the end product of the pathway. CTP是嘧啶合成途径的最终产物，它所形成的抑制为反馈抑制。 Feedback inhibition by CTP ensures that N-carbamoylaspartate and subsequent intermediates in the pathway are not needlessly formed when pyrimidines are abundant. •该途径使CTP合成处于足量时，不再形成过量的反应产物及其后 的中间体。The inhibition of ATCase by CTP is an example of feedback inhibition (反 馈抑制), the inhibition of an enzyme by the end product of the pathway. Feedback inhibition by CTP ensures that N-carbamoylaspartate and subsequent intermediates in the pathway are not needlessly formed when pyrimidines are abundant. Feedback inhibition 反馈抑制 •该途径使CTP合成处于足量时，不再形成过量的反应产物及其后 的中间体。 • CTP是嘧啶合成途径的最终产物，它所形成的抑制为反馈抑制