Novel gene useful for diagnosis and treatment of aplasia of corpus callosum and aspermatogenesis and use thereof

摘要

Aplasia of the corpus callosum or aspermatogenesis is diagnosed by investigating existence or expression of the BT-IgSF gene with use of a primer for PCR or probe for hybridization comprising a DNA coding for a novel cell adhesion molecule (BT-IgSF) defined in the following (A) or (B) or a partial sequence thereof: ;(A) a protein comprising the amino acid sequence of the amino acid numbers 1 to 409 of SEQ ID NO: 2; ;(B) a protein comprising an amino acid sequence of the amino acid numbers 1 to 409 of SEQ ID NO: 2 including substitution, deletion, insertion or addition of one or several amino acids and having a function as a cell adhesion molecule.