pre-B cell

https://doi.org/10.1351/goldbook.13595
Cell in the B-lymphocyte lineage that has rearranged heavy chain but not light chain genes; it expresses surrogate light chains and \(\upmu\) heavy chain at its surface in conjunction with immunoglobulins Ig _012643_ and Ig _012644_. All these molecules comprise the pre-B-cell receptor (pre-BCR).
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1233 [Terms] [Paper]