part_of part of phenotype affects entity effector CD4-positive, alpha-beta T cell Abnormal CD4+ effector memory T cell proportion 2019-04-09T00:11:24Z Abnormal proportion of effector memory CD4-positive, alpha-beta T cells Abnormal proportion of CD4-positive effector memory cells Abnormal proportion of CD4+ effector memory cells An abnormal proportion of effector memory CD4+ T cells compared to the total number of T cells in the blood. These are memory cells that are short-lived cells that migrate to the site of an infection and attempt to eliminate the pathogen. These cells have the phenotype CD3-positive, CD4-positive, CD62L-negative, CCR7-negative, CD127-positive, CD45RA-negative, CD45RO-positive, and CD25-negative. HP:0410382 Abnormal CD4+ memory T cell proportion blood proportion of effector CD4-positive, alpha-beta T cell relative to T cell in blood phenotype