IL7R（interleukin 7 receptor），癌症关联基因，基因ID：3575，该基因编码的蛋白质是白细胞介素7（IL7）的受体。这种受体的功能需要白细胞介素2受体γ链（il2rg），它是多种细胞因子受体（包括白细胞介素2、4、7、9和15）共有的一种γ链。该蛋白在淋巴细胞发育过程中对V（D）J重组起到关键作用。该基因的缺陷可能与严重联合免疫缺陷（SCID）有关。另外，还发现了拼接转录变体。The protein encoded by this gene is a receptor for interleukin 7 (IL7). The function of this receptor requires the interleukin 2 receptor， gamma chain (IL2RG)， which is a common gamma chain shared by the receptors of various cytokines， including interleukins 2， 4， 7， 9， and 15. This protein has been shown to play a critical role in V(D)J recombination during lymphocyte development. Defects in this gene may be associated with severe combined immunodeficiency (SCID). Alternatively spliced transcript variants have been found.关联癌症：小儿B淋巴细胞白血病，T细胞急性淋巴细胞白血病。