preBCR-negative large pre-B-II cell
prebcr-negative large pre-b-ii cell
"A pre-BCR-negative large pre-B-II cell is a large pre-B-II cell that is pre-B cell receptor-negative, composed of surrogate light chain protein (SL), which is composed of VpreB and Lambda 5/14.1, in complex with immunoglobulin mu heavy chain (IgHmu), on the cell surface, and lack a DNA rearrangement of immunoglobulin light chain genes."