SNP rs404860 is located in the NOTCH4 gene in the major histocompatibility complex region, rs3117098 is located in the BTNL2 gene (a member of the immunoglobulin superfamily), and rs7775228 is located in the HLA‐DQA2 gene; these genes are inflammation‐related genes that may be involved in asthma development. This evidence concerns the gene BTNL2 and asthma.