Receptor for thymic stromal lymphopoietin (TSLP). Forms a functional complex with TSLP and IL7R which is capable of stimulating cell proliferation through activation of STAT3 and STAT5. Also activates JAK2 (By similarity). Implicated in the development of the hematopoietic system.
Human tslp is proposed to signal through a heterodimeric receptor complex that consists of a new member of the hemopoietin family termed human tslp receptor and the il-7r alpha-chain.