immature B cell
CL:0000816
immature B lymphocyte
zebrafish_anatomy
An immature B cell is a precursor B cell that has the phenotype surface IgM-positive and surface IgD-negative, and have not undergone class immunoglobulin class switching or peripheral encounter with antigen and activation.
immature B-lymphocyte
immature B-cell
ZFA:0009343
newly formed B Cell
TAO:0009343
precursor B cell