이 유전자에 의해 인코딩된 단백질은 이질체 사이토카인 수용체의 인터루킨 5 특정 서브 유닛이다.수용체는 인터루킨3(IL3) 수용체, 군집 자극 인자2(CSF2/GM-CSF), 인터루킨5(IL5) 수용체들이 공유하는 리간드 고유 알파 서브유닛과 신호 변환 베타유닛으로 구성된다.IL5에 대한 이 단백질의 결합은 베타 서브유닛에 따라 달라진다.베타 서브유닛은 리간드 바인딩에 의해 활성화되며, IL5의 생물학적 활동에 필요하다.이 단백질은 전사 계수 SOX4의 IL5 매개 활성화에 필요한 싱데칸 결합 단백질(신텐)과 상호작용하는 것으로 밝혀졌다.3개의 구별되는 ISO 양식을 인코딩하는 6개의 대안으로 분할된 대본 변형들이 보고되었다.[5]
^Geijsen N, Uings IJ, Pals C, Armstrong J, McKinnon M, Raaijmakers JA, Lammers JW, Koenderman L, Coffer PJ (Aug 2001). "Cytokine-specific transcriptional regulation through an IL-5Ralpha interacting protein". Science. 293 (5532): 1136–8. doi:10.1126/science.1059157. PMID11498591. S2CID28003281.
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