abstract |
PROBLEM TO BE SOLVED: To provide a human homolog of mouse RP105 molecule which is considered to be an important molecule in the control of B cell proliferation and apoptosis, a human RP105 molecule as a counterpart, and a DNA encoding the same. . SOLUTION: The following (A) or (B) or a protein having a part thereof or a DNA encoding the same. (A) a protein having the amino acid sequence of SEQ ID NO: 2; (B) in the amino acid sequence of SEQ ID NO: 2, having an amino acid sequence having one or more amino acid substitutions, deletions, insertions, or additions, and proliferating or promoting B cells; Or a protein having a property involved in suppression or induction of B cell apoptosis. |