human_reference_atlas has characterizing marker set has marker component SDC1 CD27 XBP1 CD19 CD38 CD79A CXCR4 IGHG1 IGHM JCHAIN IRF4 MS4A1 PRDM1 cell cell type (from CL) mature B cell plasmablast CL:0000980 CD27-positive, CD38-positive, CD20-negative B cell FMA:84371 plasmablast plasmablast CD20-negative B cell This cell type is compatible with the HIPC Lyoplate markers for 'plasmablast'. Plasmablasts are also reportedly CD48-positive, CD63-positive, CD229-positive, CD270-positive, CD319-positive, CD352-positive, CD361-positive, and IgD-negative. An activated mature (naive or memory) B cell that is secreting immunoglobulin, typified by being CD27-positive, CD38-positive, CD138-negative. Plasmablast CT Homo sapiens sequence collection lymph node red pulp of spleen splenic cord white pulp of spleen periarterial lymphatic sheath cortex of lymph node medulla of lymph node spleen thymus lobule thymus thymus corticomedullary boundary spleen secondary B follicle spleen germinal center thymus lobe lymph node germinal center lymph node medullary cord lymph node secondary follicle spleen pulp lymph node germinal center light zone