석소체/내소체 칼슘 ATPase 3은 사람 에게서 ATP2A3 유전자에 [5] [6] 의해 코드되는 효소 이다.
이 유전자는 SERCA Ca-ATPases 2+ 중 하나를 암호화하는데, SERCA Ca-ATPases는 세포의 석소체 또는 소포체 내에 위치 한 세포 내 펌프이다. SERCA3 발현은 원래 비근육성으로 설명되었지만 최근 심근세포 에서 관찰되었다. 이 효소는 세포질 에서 석소체 내강 으로의 칼슘 이동과 결합된 ATP의 가수 분해를 촉매하고 근육 흥분 및 수축과 관련된 칼슘 격리에 관여합니다. 대체 스플라이싱은 SERCA3a라는 이름의 다른 아이소폼을 [6] 코드하는 6개의 트랜스크립트 배리언트를 생성한다.
암 ATP2A3 유전자는 다양한 악성 종양 [7] 수준에서 자궁 경부 전형성 병변에서 파생된 인간 유두종 바이러스 양성 신생물 각화세포 에서 점진적 으로 하향 조절되는 것이 관찰되었다. 이러한 이유로, ATP2A3는 종양 발생과 관련될 가능성이 높으며 자궁 경부 전형성 병변 [7] 진행을 위한 잠재적 예후 지표가 될 수 있다.
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