has plasma membrane part in taxon capable of capable of B cell lymphocyte of B lineage, CD19-positive B cell, CD19-positive A B cell that is CD19-positive. https://orcid.org/0000-0001-9990-8331 B-lymphocyte, CD19-positive CD19+ B cell B-cell, CD19-positive B lymphocyte, CD19-positive cell CD19-positive B cell B cell mediated immunity Mammalia CD19 molecule