transitional stage B cell morphology trait transitional stage T3 B cell morphology trait T3 B cell morphology trait 2010-01-27T01:11:40Z transitional three stage B-cell morphology trait transitional three stage B lymphocyte morphology trait csmith Trait.ontology transitional three stage B-lymphocyte morphology trait VT:0009921 Any measurable or observable characteristic related to the shape, structure, color, or pattern of a type of a transitional stage B cell that expresses surface IgM and IgD, and CD62L; this cell type appears to be an anergic B cell that does not proliferate upon BCR signaling, is found in the spleen and lymph nodes, and has the phenotype surface IgM-positive, surface IgD-positive, CD21-positive, CD23-positive, and CD62L-positive. T3 stage B cell morphology trait