The human leukocyte differentiation antigen CD23 (FCE2) is a key molecule for B-cell activation and growth. It is the low-affinity receptor for IgE. The truncated molecule can be secreted, then functioning as a potent mitogenic growth factor.[supplied by OMIM
Other Designations:
C-type lectin domain family 4, member J,CD23 antigen,Fc fragment of IgE, low affinity II, receptor for (CD23A)