WASP(Wiskott-Aldrich Syndrome protein) 계열의 멤버인 이 유전자에 의해 코드된 단백질은 막 주름에 필요한 액틴 세포골격을 조절하는 WAVE 조절 복합체에 관여함으로써 Rac의 하류에 중요한 역할을 한다.체외에서 액틴 중합성을 강화하면서 액틴 핵생성코어 Arp2/3 복합체와 연관되는 것으로 나타났다.
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