M상유도인자 포스파타아제 1은 이중특이성 포스파타아제 Cdc25A라고도 불리며 , 세포분열회로 25호몰로지A (CDC25A) 유전자 에 의해 인체 내에서 부호화되는 단백질 이다.
기능. CDC25A는 CDC25 계열의 이중 특이성 인산가수분해효소 중 하나입니다.
이중특이성 단백질 포스파타아제는 인산화 티로신 및 세린 /트레오닌 잔류물에서 인산기를 제거 한다. 이들은 티로신 포스파타아제 계열의 하위그룹을 나타낸다(세린/트레오닌 포스파타아제 계열과는 반대).
현재까지 조사된 모든 포유류는 Cdc25A, Cdc25B 및 Cdc25C로 명명된 조상 Cdc25 유전자(예: 곰팡이 종 S. pombe 에서 발견됨)의 3가지 상동성을 가지고 있다. 이와는 대조적으로, 일부 무척추동물들은 두 개(예: 드로소필라 단백질 스트링과 트위네) 또는 네 개(예: C. elegans Cdc-25.1 - Cdc-25.4) 상동성을 가지고 있다. CDC25A는 셀 사이클의 G1에서S 단계로 진행하는데 필요하지만 이후 셀 사이클 이벤트에서도 역할을 합니다. 특히 중기의 세포에서 안정화되며 사이클린 B 와 유사한 중기의 출구 시에 분해된다. 인접한 티로신 및 트레오닌 잔류물에서 억제성 인산기를 제거하여 G1/S 사이클린 의존성 키나아제 CDK4 및 CDK2 를 활성화할 수 있으며, 주요 유사분열성 Cdk인 Cdc2(Cdk1)를 활성화 할 수도 있다.
암에 대한 관여 CDC25A는 DNA 손상에 반응 하여 특이적으로 분해되어 세포 주기 정지를 일으킨다. 따라서, 이 성능 저하로 종양 형성의 RAS와 설치류 섬유 아세포를 변화시킬 협력할 수 있는 암 유전자, 그리고 그것은 종양의 조직의 유방과 머리가 아는 것 등의 다양한 overexpressed, 목 종양으로 간주된다 p53와 p21의 CDKs.CDC25A의 억제에서 유도를 보완한 DNA손상 검문소의 한축을 나타냅니다.. E2F 계열의 전사 인자의 표적이 됩니다.따라서 발암 에서 [5] p53-p21-Cdk 축의 조절 장애로 인한 일반적인 결과이다.
상호 작용 CDC25A는 다음과 상호작용하는 것 으로 나타났습니다.
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