abbr. immunotyrosine activation motifs 免疫酪氨酸活化基序；immunoreceptor tyrosine-based activation motif 基于免疫受体酪氨酸的活化基序；immunoregulatory tyrosine activation motifs 免疫调节酪氨酸活化基序；interdata telecommunications access method 数据间远程通信接入法