이 유전자는 I형, II형, IV형 콜라겐에 결합하는 RGD 함유 단백질을 암호화한다.RGD 모티브는 세포 유착을 조절하는 많은 세포외 매트릭스 단백질에서 발견되며 여러 인테그린에 대한 리간드 인식 시퀀스로 기능한다.이 단백질은 세포-콜라겐 상호작용에서 역할을 하며 연골에서 연골내막골 형성에 관여할 수 있다.단백질은 성장인자 베타 형성에 의해 유도되며 세포 유착을 [5]억제하는 역할을 한다.
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