SCP1

The synaptonemal complex (SC) is a protein structure that forms during the synapsis of homologous chromosomes during meiosis. This structure is involved in the processes of chromosome synapsis, genetic recombination and subsequent chromosome segregation, and is essential for gametogenesis.

Synaptonemal Complex Protein 1 (SCP1) is a novel tumor antigen that belongs to the growing family of cancer/testis antigens (CTA). SCP-1 is known to be selectively expressed during the meiotic prophase of spermatocytes and is involved in the pairing of homologous chromosomes during meiosis I. Investigation of a broad spectrum of normal and malignant tissues revealed that expression of SCP-1 transcripts and antigen selectively in a variety of neoplastic tissues and tumor cell lines.