lacks_plasma_membrane_part has plasma membrane part CD4-positive, alpha-beta T cell effector T cell effector CD4-positive, alpha-beta T cell effector CD4-positive, alpha-beta T-cell effector CD4-positive, alpha-beta T-lymphocyte A CD4-positive, alpha-beta T cell with the phenotype CCR7-negative, CD45RA-positive. effector CD4-positive, alpha-beta T lymphocyte This cell type is compatible with the HIPC Lyoplate markers for 'effector CD4+ T cell'. The functional characteristics of this cell type currently undefined in CL, which affects its proper placement within the hierarchy. effector CD4+ T cell alpha-beta T cell receptor complex CD4 molecule receptor-type tyrosine-protein phosphatase C isoform CD45RA C-C chemokine receptor type 7 T cell receptor co-receptor CD8